1/* Definitions for C++ parsing and type checking.
2   Copyright (C) 1987, 92-97, 1998, 1999 Free Software Foundation, Inc.
3   Hacked by Michael Tiemann (tiemann@cygnus.com)
4
5This file is part of GNU CC.
6
7GNU CC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12GNU CC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GNU CC; see the file COPYING.  If not, write to
19the Free Software Foundation, 59 Temple Place - Suite 330,
20Boston, MA 02111-1307, USA.  */
21
22#ifndef _CP_TREE_H
23#define _CP_TREE_H
24
25/* Usage of TREE_LANG_FLAG_?:
26   0: BINFO_MARKED (BINFO nodes).
27      COMPOUND_STMT_NO_SCOPE (in COMPOUND_STMT).
28      NEW_EXPR_USE_GLOBAL (in NEW_EXPR).
29      DELETE_EXPR_USE_GLOBAL (in DELETE_EXPR).
30      LOOKUP_EXPR_GLOBAL (in LOOKUP_EXPR).
31      TREE_NEGATED_INT (in INTEGER_CST).
32      TREE_INDIRECT_USING (in NAMESPACE_DECL).
33      IDENTIFIER_MARKED (used by search routines).
34      LOCAL_BINDING_P (in CPLUS_BINDING)
35   1: IDENTIFIER_VIRTUAL_P.
36      TI_PENDING_TEMPLATE_FLAG.
37      TEMPLATE_PARMS_FOR_INLINE.
38      DELETE_EXPR_USE_VEC (in DELETE_EXPR).
39      (TREE_CALLS_NEW) (in _EXPR or _REF) (commented-out).
40      TYPE_USES_COMPLEX_INHERITANCE (in _TYPE).
41      C_DECLARED_LABEL_FLAG.
42      INHERITED_VALUE_BINDING_P (in CPLUS_BINDING)
43      BASELINK_P (in TREE_LIST)
44   2: IDENTIFIER_OPNAME_P.
45      BINFO_VBASE_MARKED.
46      BINFO_FIELDS_MARKED.
47      TYPE_VIRTUAL_P.
48   3: TYPE_USES_VIRTUAL_BASECLASSES (in a class TYPE).
49      BINFO_VTABLE_PATH_MARKED.
50      BINFO_PUSHDECLS_MARKED.
51      (TREE_REFERENCE_EXPR) (in NON_LVALUE_EXPR) (commented-out).
52   4: BINFO_NEW_VTABLE_MARKED.
53      TREE_HAS_CONSTRUCTOR (in INDIRECT_REF, SAVE_EXPR, CONSTRUCTOR,
54          or FIELD_DECL).
55   5: TYPE_USES_PVBASES (in a class TYPE).
56   6: Not used.
57
58   Usage of TYPE_LANG_FLAG_?:
59   0: C_TYPE_FIELDS_READONLY (in RECORD_TYPE or UNION_TYPE).
60   1: TYPE_HAS_CONSTRUCTOR.
61   2: TYPE_HAS_DESTRUCTOR.
62   3: TYPE_FOR_JAVA.
63   4: TYPE_NEEDS_DESTRUCTOR.
64   5: IS_AGGR_TYPE.
65   6: TYPE_BUILT_IN.
66
67   Usage of DECL_LANG_FLAG_?:
68   0: DECL_ERROR_REPORTED (in VAR_DECL).
69      DECL_TEMPLATE_PARM_P (in CONST_DECL, TYPE_DECL, or TEMPLATE_DECL)
70   1: C_TYPEDEF_EXPLICITLY_SIGNED (in TYPE_DECL).
71      DECL_TEMPLATE_INSTANTIATED (in a VAR_DECL or a FUNCTION_DECL)
72   2: DECL_THIS_EXTERN (in VAR_DECL or FUNCTION_DECL).
73   3: DECL_IN_AGGR_P.
74   4: DECL_MAYBE_TEMPLATE.
75   5: DECL_INTERFACE_KNOWN.
76   6: DECL_THIS_STATIC (in VAR_DECL or FUNCTION_DECL).
77   7: DECL_DEAD_FOR_LOCAL (in VAR_DECL).
78
79   Usage of language-independent fields in a language-dependent manner:
80
81   TYPE_ALIAS_SET
82     This field is used by TYPENAME_TYPEs, TEMPLATE_TYPE_PARMs, and so
83     forth as a substitute for the mark bits provided in `lang_type'.
84     At present, only the six low-order bits are used.
85
86   TYPE_BINFO
87     For an ENUMERAL_TYPE, this is ENUM_TEMPLATE_INFO.
88     For a TYPENAME_TYPE, this is TYPENAME_TYPE_FULLNAME.
89     For a TEMPLATE_TEMPLATE_PARM, this is
90     TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO.
91
92   DECL_SAVED_INSNS/DECL_FIELD_SIZE
93     For a static VAR_DECL, this is DECL_INIT_PRIORITY.
94*/
95
96/* Language-dependent contents of an identifier.  */
97
98struct lang_identifier
99{
100  struct tree_identifier ignore;
101  tree namespace_bindings;
102  tree bindings;
103  tree class_value;
104  tree class_template_info;
105  struct lang_id2 *x;
106};
107
108struct lang_id2
109{
110  tree label_value, implicit_decl;
111  tree error_locus;
112};
113
114typedef struct
115{
116  tree t;
117  int new_type_flag;
118} flagged_type_tree;
119
120typedef struct
121{
122  char common[sizeof (struct tree_common)];
123  struct rtx_def *rtl;	/* Unused, but required to match up with what
124			   the middle-end expects.  */
125  HOST_WIDE_INT index;
126  HOST_WIDE_INT level;
127  HOST_WIDE_INT orig_level;
128  tree decl;
129} template_parm_index;
130
131typedef struct ptrmem_cst
132{
133  char common[sizeof (struct tree_common)];
134  tree member;
135}* ptrmem_cst_t;
136
137/* Nonzero if this binding is for a local scope, as opposed to a class
138   or namespace scope.  */
139#define LOCAL_BINDING_P(NODE) TREE_LANG_FLAG_0(NODE)
140
141/* Nonzero if BINDING_VALUE is from a base class of the class which is
142   currently being defined.  */
143#define INHERITED_VALUE_BINDING_P(NODE) TREE_LANG_FLAG_1(NODE)
144
145/* For a binding between a name and an entity at a non-local scope,
146   defines the scope where the binding is declared.  (Either a class
147   _TYPE node, or a NAMESPACE_DECL.)  This macro should be used only
148   for namespace-level bindings; on the IDENTIFIER_BINDING list
149   BINDING_LEVEL is used instead.  */
150#define BINDING_SCOPE(NODE) (((struct tree_binding*)NODE)->scope.scope)
151
152/* This is the declaration bound to the name. Possible values:
153   variable, overloaded function, namespace, template, enumerator.  */
154#define BINDING_VALUE(NODE)    (((struct tree_binding*)NODE)->value)
155
156/* If name is bound to a type, this is the type (struct, union, enum).  */
157#define BINDING_TYPE(NODE)     TREE_TYPE(NODE)
158
159#define IDENTIFIER_GLOBAL_VALUE(NODE) \
160  namespace_binding (NODE, global_namespace)
161#define SET_IDENTIFIER_GLOBAL_VALUE(NODE, VAL) \
162  set_namespace_binding (NODE, global_namespace, VAL)
163#define IDENTIFIER_NAMESPACE_VALUE(NODE) \
164  namespace_binding (NODE, current_namespace)
165#define SET_IDENTIFIER_NAMESPACE_VALUE(NODE, VAL) \
166  set_namespace_binding (NODE, current_namespace, VAL)
167
168struct tree_binding
169{
170  char common[sizeof (struct tree_common)];
171  union {
172    tree scope;
173    struct binding_level *level;
174  } scope;
175  tree value;
176};
177
178/* The overloaded FUNCTION_DECL. */
179#define OVL_FUNCTION(NODE)   (((struct tree_overload*)NODE)->function)
180#define OVL_CHAIN(NODE)      TREE_CHAIN(NODE)
181/* Polymorphic access to FUNCTION and CHAIN. */
182#define OVL_CURRENT(NODE)     \
183  ((TREE_CODE(NODE)==OVERLOAD) ? OVL_FUNCTION(NODE) : NODE)
184#define OVL_NEXT(NODE)        \
185  ((TREE_CODE(NODE)==OVERLOAD) ? TREE_CHAIN(NODE) : NULL_TREE)
186/* If set, this was imported in a using declaration.
187   This is not to confuse with being used somewhere, which
188   is not important for this node. */
189#define OVL_USED(NODE)        TREE_USED(NODE)
190
191struct tree_overload
192{
193  char common[sizeof (struct tree_common)];
194  tree function;
195};
196
197/* A `baselink' is a TREE_LIST whose TREE_PURPOSE is a BINFO
198   indicating a particular base class, and whose TREE_VALUE is a
199   (possibly overloaded) function from that base class.  */
200#define BASELINK_P(NODE) \
201  (TREE_CODE ((NODE)) == TREE_LIST && TREE_LANG_FLAG_1 ((NODE)))
202#define SET_BASELINK_P(NODE) \
203  (TREE_LANG_FLAG_1 ((NODE)) = 1)
204
205#define WRAPPER_PTR(NODE) (((struct tree_wrapper*)NODE)->u.ptr)
206#define WRAPPER_INT(NODE) (((struct tree_wrapper*)NODE)->u.i)
207
208struct tree_wrapper
209{
210  char common[sizeof (struct tree_common)];
211  union {
212    void *ptr;
213    int i;
214  } u;
215};
216
217#define SRCLOC_FILE(NODE) (((struct tree_srcloc*)NODE)->filename)
218#define SRCLOC_LINE(NODE) (((struct tree_srcloc*)NODE)->linenum)
219struct tree_srcloc
220{
221  char common[sizeof (struct tree_common)];
222  char *filename;
223  int linenum;
224};
225
226/* To identify to the debug emitters if it should pay attention to the
227   flag `-Wtemplate-debugging'.  */
228#define HAVE_TEMPLATES 1
229
230/* Macros for access to language-specific slots in an identifier.  */
231
232#define IDENTIFIER_NAMESPACE_BINDINGS(NODE)	\
233  (((struct lang_identifier *)(NODE))->namespace_bindings)
234#define IDENTIFIER_TEMPLATE(NODE)	\
235  (((struct lang_identifier *)(NODE))->class_template_info)
236
237/* The IDENTIFIER_BINDING is the innermost CPLUS_BINDING for the
238    identifier.  It's TREE_CHAIN is the next outermost binding.  Each
239    BINDING_VALUE is a DECL for the associated declaration.  Thus,
240    name lookup consists simply of pulling off the node at the front
241    of the list (modulo oddities for looking up the names of types,
242    and such.)  You can use BINDING_SCOPE or BINDING_LEVEL to
243    determine the scope that bound the name.  */
244#define IDENTIFIER_BINDING(NODE) \
245  (((struct lang_identifier*) (NODE))->bindings)
246
247/* The IDENTIFIER_VALUE is the value of the IDENTIFIER_BINDING, or
248   NULL_TREE if there is no binding.  */
249#define IDENTIFIER_VALUE(NODE)			\
250  (IDENTIFIER_BINDING (NODE) 			\
251   ? BINDING_VALUE (IDENTIFIER_BINDING (NODE))	\
252   : NULL_TREE)
253
254/* If IDENTIFIER_CLASS_VALUE is set, then NODE is bound in the current
255   class, and IDENTIFIER_CLASS_VALUE is the value binding.  This is
256   just a pointer to the BINDING_VALUE of one of the bindings in the
257   IDENTIFIER_BINDINGs list, so any time that this is non-NULL so is
258   IDENTIFIER_BINDING.  */
259#define IDENTIFIER_CLASS_VALUE(NODE) \
260  (((struct lang_identifier *) (NODE))->class_value)
261
262/* The amount of time used by the file whose special "time identifier"
263   is NODE, represented as an INTEGER_CST.  See get_time_identifier.  */
264#define TIME_IDENTIFIER_TIME(NODE) IDENTIFIER_BINDING(NODE)
265
266/* For a "time identifier" this is a INTEGER_CST.  The
267   TREE_INT_CST_LOW is 1 if the corresponding file is "interface only".
268   The TRE_INT_CST_HIGH is 1 if it is "interface unknown".  */
269#define TIME_IDENTIFIER_FILEINFO(NODE) IDENTIFIER_CLASS_VALUE (NODE)
270
271/* TREE_TYPE only indicates on local and class scope the current
272   type. For namespace scope, the presence of a type in any namespace
273   is indicated with global_type_node, and the real type behind must
274   be found through lookup. */
275#define IDENTIFIER_TYPE_VALUE(NODE) (identifier_type_value(NODE))
276#define REAL_IDENTIFIER_TYPE_VALUE(NODE) (TREE_TYPE (NODE))
277#define SET_IDENTIFIER_TYPE_VALUE(NODE,TYPE) (TREE_TYPE (NODE) = TYPE)
278#define IDENTIFIER_HAS_TYPE_VALUE(NODE) (IDENTIFIER_TYPE_VALUE (NODE) ? 1 : 0)
279
280#define LANG_ID_FIELD(NAME,NODE) \
281  (((struct lang_identifier *)(NODE))->x \
282   ? ((struct lang_identifier *)(NODE))->x->NAME : 0)
283#define SET_LANG_ID(NODE,VALUE,NAME) \
284  (((struct lang_identifier *)(NODE))->x == 0				    \
285   ? ((struct lang_identifier *)(NODE))->x				    \
286      = (struct lang_id2 *)perm_calloc (1, sizeof (struct lang_id2)) : 0,   \
287   ((struct lang_identifier *)(NODE))->x->NAME = (VALUE))
288
289#define IDENTIFIER_LABEL_VALUE(NODE)	    LANG_ID_FIELD(label_value, NODE)
290#define SET_IDENTIFIER_LABEL_VALUE(NODE,VALUE)   \
291	SET_LANG_ID(NODE, VALUE, label_value)
292
293#define IDENTIFIER_IMPLICIT_DECL(NODE)	    LANG_ID_FIELD(implicit_decl, NODE)
294#define SET_IDENTIFIER_IMPLICIT_DECL(NODE,VALUE) \
295	SET_LANG_ID(NODE, VALUE, implicit_decl)
296
297#define IDENTIFIER_ERROR_LOCUS(NODE)	    LANG_ID_FIELD(error_locus, NODE)
298#define SET_IDENTIFIER_ERROR_LOCUS(NODE,VALUE)	\
299	SET_LANG_ID(NODE, VALUE, error_locus)
300
301
302#define IDENTIFIER_VIRTUAL_P(NODE) TREE_LANG_FLAG_1(NODE)
303
304/* Nonzero if this identifier is the prefix for a mangled C++ operator name.  */
305#define IDENTIFIER_OPNAME_P(NODE) TREE_LANG_FLAG_2(NODE)
306
307/* Nonzero if this identifier is the name of a type-conversion
308   operator.  */
309#define IDENTIFIER_TYPENAME_P(NODE)			\
310  (! strncmp (IDENTIFIER_POINTER (NODE),		\
311              OPERATOR_TYPENAME_FORMAT,			\
312	      strlen (OPERATOR_TYPENAME_FORMAT)))
313
314/* Nonzero means reject anything that ANSI standard C forbids.  */
315extern int pedantic;
316
317/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only.  */
318#define C_TYPE_FIELDS_READONLY(type) TYPE_LANG_FLAG_0 (type)
319
320/* Record in each node resulting from a binary operator
321   what operator was specified for it.  */
322#define C_EXP_ORIGINAL_CODE(exp) ((enum tree_code) TREE_COMPLEXITY (exp))
323
324/* Store a value in that field.  */
325#define C_SET_EXP_ORIGINAL_CODE(exp, code) \
326  (TREE_COMPLEXITY (exp) = (int)(code))
327
328/* If non-zero, a VAR_DECL whose cleanup will cause a throw to the
329   next exception handler.  */
330extern tree exception_throw_decl;
331
332extern tree double_type_node, long_double_type_node, float_type_node;
333extern tree char_type_node, unsigned_char_type_node, signed_char_type_node;
334extern tree ptrdiff_type_node;
335
336extern tree short_integer_type_node, short_unsigned_type_node;
337extern tree long_integer_type_node, long_unsigned_type_node;
338extern tree long_long_integer_type_node, long_long_unsigned_type_node;
339extern tree unsigned_type_node;
340extern tree string_type_node, char_array_type_node, int_array_type_node;
341extern tree wchar_array_type_node;
342extern tree wchar_type_node, signed_wchar_type_node, unsigned_wchar_type_node;
343
344extern tree complex_integer_type_node;
345extern tree complex_float_type_node;
346extern tree complex_double_type_node;
347extern tree complex_long_double_type_node;
348
349extern tree intQI_type_node, unsigned_intQI_type_node;
350extern tree intHI_type_node, unsigned_intHI_type_node;
351extern tree intSI_type_node, unsigned_intSI_type_node;
352extern tree intDI_type_node, unsigned_intDI_type_node;
353#if HOST_BITS_PER_WIDE_INT >= 64
354extern tree intTI_type_node, unsigned_intTI_type_node;
355#endif
356
357extern tree java_byte_type_node;
358extern tree java_short_type_node;
359extern tree java_int_type_node;
360extern tree java_long_type_node;
361extern tree java_float_type_node;
362extern tree java_double_type_node;
363extern tree java_char_type_node;
364extern tree java_boolean_type_node;
365
366extern int current_function_returns_value;
367extern int current_function_returns_null;
368extern tree current_function_return_value;
369
370extern tree current_namespace;
371extern tree global_namespace;
372
373extern tree ridpointers[];
374extern tree ansi_opname[];
375extern tree ansi_assopname[];
376
377/* Nonzero means `$' can be in an identifier.  */
378
379extern int dollars_in_ident;
380
381/* Nonzero means allow type mismatches in conditional expressions;
382   just make their values `void'.   */
383
384extern int flag_cond_mismatch;
385
386/* Nonzero means don't recognize the keyword `asm'.  */
387
388extern int flag_no_asm;
389
390/* For cross referencing.  */
391
392extern int flag_gnu_xref;
393
394/* For environments where you can use GNU binutils (as, ld in particular).  */
395
396extern int flag_gnu_binutils;
397
398/* Nonzero means warn about implicit declarations.  */
399
400extern int warn_implicit;
401
402/* Nonzero means warn about usage of long long when `-pedantic'.  */
403
404extern int warn_long_long;
405
406/* Nonzero means warn when all ctors or dtors are private, and the class
407   has no friends.  */
408
409extern int warn_ctor_dtor_privacy;
410
411/* Nonzero means warn about function definitions that default the return type
412   or that use a null return and have a return-type other than void.  */
413
414extern int warn_return_type;
415
416/* Nonzero means give string constants the type `const char *', as mandated
417   by the standard.  */
418
419extern int flag_const_strings;
420
421/* Nonzero means warn about deprecated conversion from string constant to
422   `char *'.  */
423
424extern int warn_write_strings;
425
426/* Nonzero means warn about sizeof(function) or addition/subtraction
427   of function pointers.  */
428
429extern int warn_pointer_arith;
430
431/* Nonzero means warn about suggesting putting in ()'s.  */
432
433extern int warn_parentheses;
434
435/* Nonzero means warn about multiple (redundant) decls for the same single
436   variable or function.  */
437
438extern int warn_redundant_decls;
439
440/* Warn if initializer is not completely bracketed.  */
441
442extern int warn_missing_braces;
443
444/* Warn about comparison of signed and unsigned values.  */
445
446extern int warn_sign_compare;
447
448/* Warn about a subscript that has type char.  */
449
450extern int warn_char_subscripts;
451
452/* Nonzero means warn about pointer casts that can drop a type qualifier
453   from the pointer target type.  */
454
455extern int warn_cast_qual;
456
457/* Warn about *printf or *scanf format/argument anomalies.  */
458
459extern int warn_format;
460
461/* Nonzero means warn about non virtual destructors in classes that have
462   virtual functions.  */
463
464extern int warn_nonvdtor;
465
466/* Non-zero means warn when we convert a pointer to member function
467   into a pointer to (void or function).  */
468
469extern int warn_pmf2ptr;
470
471/* Nonzero means warn about violation of some Effective C++ style rules.  */
472
473extern int warn_ecpp;
474
475/* Nonzero means warn where overload resolution chooses a promotion from
476   unsigned to signed over a conversion to an unsigned of the same size.  */
477
478extern int warn_sign_promo;
479
480/* Non-zero means warn when a function is declared extern and later inline.  */
481
482extern int warn_extern_inline;
483
484/* Non-zero means warn when an old-style cast is used.  */
485
486extern int warn_old_style_cast;
487
488/* Nonzero means to treat bitfields as unsigned unless they say `signed'.  */
489
490extern int flag_signed_bitfields;
491
492/* 3 means write out only virtuals function tables `defined'
493   in this implementation file.
494   2 means write out only specific virtual function tables
495   and give them (C) public access.
496   1 means write out virtual function tables and give them
497   (C) public access.
498   0 means write out virtual function tables and give them
499   (C) static access (default).
500   -1 means declare virtual function tables extern.  */
501
502extern int write_virtuals;
503
504/* True for more efficient but incompatible (not fully tested)
505   vtable implementation (using thunks).
506   0 is old behavior; 1 is new behavior; 3 adds vlist arguments;
507   2 is 3 plus backwards-compatibility to 1.  */
508extern int flag_vtable_thunks, flag_vtable_thunks_compat;
509
510/* INTERFACE_ONLY nonzero means that we are in an "interface"
511   section of the compiler.  INTERFACE_UNKNOWN nonzero means
512   we cannot trust the value of INTERFACE_ONLY.  If INTERFACE_UNKNOWN
513   is zero and INTERFACE_ONLY is zero, it means that we are responsible
514   for exporting definitions that others might need.  */
515extern int interface_only, interface_unknown;
516
517/* Nonzero means we should attempt to elide constructors when possible.  */
518
519extern int flag_elide_constructors;
520
521/* Nonzero means enable obscure ANSI features and disable GNU extensions
522   that might cause ANSI-compliant code to be miscompiled.  */
523
524extern int flag_ansi;
525
526/* Nonzero means recognize and handle signature language constructs.  */
527
528extern int flag_handle_signatures;
529
530/* Nonzero means that member functions defined in class scope are
531   inline by default.  */
532
533extern int flag_default_inline;
534
535/* The name-mangling scheme to use.  Versions of gcc before 2.8 use
536   version 0.  */
537extern int name_mangling_version;
538
539/* Nonzero means that guiding declarations are allowed.  */
540extern int flag_guiding_decls;
541
542/* Nonzero if squashed mangling is to be performed.
543   This uses the B and K codes to reference previously seen class types
544   and class qualifiers.       */
545extern int flag_do_squangling;
546
547/* Nonzero means generate separate instantiation control files and juggle
548   them at link time.  */
549extern int flag_use_repository;
550
551/* Nonzero if we want to issue diagnostics that the standard says are not
552   required.  */
553extern int flag_optional_diags;
554
555/* Nonzero means do not consider empty argument prototype to mean function
556   takes no arguments.  */
557extern int flag_strict_prototype;
558
559/* Nonzero means output .vtable_{entry,inherit} for use in doing vtable gc.  */
560extern int flag_vtable_gc;
561
562/* Nonzero means make the default pedwarns warnings instead of errors.
563   The value of this flag is ignored if -pedantic is specified.  */
564extern int flag_permissive;
565
566/* Nonzero if we want to obey access control semantics.  */
567
568extern int flag_access_control;
569
570/* Nonzero to force the use of multiple symbol spaces  */
571int flag_multiple_symbol_spaces;
572
573
574/* C++ language-specific tree codes.  */
575#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
576enum cplus_tree_code {
577  __DUMMY = LAST_AND_UNUSED_TREE_CODE,
578#include "cp-tree.def"
579  LAST_CPLUS_TREE_CODE
580};
581#undef DEFTREECODE
582
583enum languages { lang_c, lang_cplusplus, lang_java };
584
585/* Macros to make error reporting functions' lives easier.  */
586#define TYPE_IDENTIFIER(NODE) (DECL_NAME (TYPE_NAME (NODE)))
587#define TYPE_NAME_STRING(NODE) (IDENTIFIER_POINTER (TYPE_IDENTIFIER (NODE)))
588#define TYPE_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (TYPE_IDENTIFIER (NODE)))
589
590#define TYPE_ASSEMBLER_NAME_STRING(NODE) (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (TYPE_NAME  (NODE))))
591#define TYPE_ASSEMBLER_NAME_LENGTH(NODE) (IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (TYPE_NAME (NODE))))
592
593/* The _DECL for this _TYPE.  */
594#define TYPE_MAIN_DECL(NODE) (TYPE_STUB_DECL (TYPE_MAIN_VARIANT (NODE)))
595
596/* Nonzero if T is a class (or struct or union) type.  Also nonzero
597   for template type parameters and typename types.  Despite its name,
598   this macro has nothing to do with the definition of aggregate given
599   in the standard.  Think of this macro as MAYBE_CLASS_TYPE_P.  */
600#define IS_AGGR_TYPE(t)				\
601  (TREE_CODE (t) == TEMPLATE_TYPE_PARM 		\
602   || TREE_CODE (t) == TYPENAME_TYPE 		\
603   || TREE_CODE (t) == TYPEOF_TYPE		\
604   || TYPE_LANG_FLAG_5 (t))
605
606/* Set IS_AGGR_TYPE for T to VAL.  T must be a class, struct, or
607   union type.  */
608#define SET_IS_AGGR_TYPE(T, VAL) \
609  (TYPE_LANG_FLAG_5 (T) = (VAL))
610
611/* Nonzero if T is a class type.  Zero for template type parameters,
612   typename types, and so forth.  */
613#define CLASS_TYPE_P(t) \
614  (IS_AGGR_TYPE_CODE (TREE_CODE (t)) && IS_AGGR_TYPE (t))
615
616#define IS_AGGR_TYPE_CODE(t)	(t == RECORD_TYPE || t == UNION_TYPE)
617#define IS_AGGR_TYPE_2(TYPE1,TYPE2) \
618  (TREE_CODE (TYPE1) == TREE_CODE (TYPE2)	\
619   && IS_AGGR_TYPE (TYPE1)&IS_AGGR_TYPE (TYPE2))
620#define IS_OVERLOAD_TYPE(t) \
621  (IS_AGGR_TYPE (t) || TREE_CODE (t) == ENUMERAL_TYPE)
622
623/* In a *_TYPE, nonzero means a built-in type.  */
624#define TYPE_BUILT_IN(NODE) TYPE_LANG_FLAG_6(NODE)
625
626/* True if this a "Java" type, defined in 'extern "Java"'. */
627#define TYPE_FOR_JAVA(NODE) TYPE_LANG_FLAG_3(NODE)
628
629/* The type qualifiers for this type, including the qualifiers on the
630   elements for an array type.  */
631#define CP_TYPE_QUALS(NODE)			\
632  ((TREE_CODE (NODE) != ARRAY_TYPE) 		\
633   ? TYPE_QUALS (NODE) : cp_type_quals (NODE))
634
635/* Nonzero if this type is const-qualified.  */
636#define CP_TYPE_CONST_P(NODE)				\
637  ((CP_TYPE_QUALS (NODE) & TYPE_QUAL_CONST) != 0)
638
639/* Nonzero if this type is volatile-qualified.  */
640#define CP_TYPE_VOLATILE_P(NODE)			\
641  ((CP_TYPE_QUALS (NODE) & TYPE_QUAL_VOLATILE) != 0)
642
643/* Nonzero if this type is restrict-qualified.  */
644#define CP_TYPE_RESTRICT_P(NODE)			\
645  ((CP_TYPE_QUALS (NODE) & TYPE_QUAL_RESTRICT) != 0)
646
647/* Nonzero if this type is const-qualified, but not
648   volatile-qualified.  Other qualifiers are ignored.  This macro is
649   used to test whether or not it is OK to bind an rvalue to a
650   reference.  */
651#define CP_TYPE_CONST_NON_VOLATILE_P(NODE)				\
652  ((CP_TYPE_QUALS (NODE) & (TYPE_QUAL_CONST | TYPE_QUAL_VOLATILE))	\
653   == TYPE_QUAL_CONST)
654
655#define DELTA_FROM_VTABLE_ENTRY(ENTRY) \
656  (!flag_vtable_thunks ? \
657     TREE_VALUE (CONSTRUCTOR_ELTS (ENTRY)) \
658   : TREE_CODE (TREE_OPERAND ((ENTRY), 0)) != THUNK_DECL ? integer_zero_node \
659   : build_int_2 (THUNK_DELTA (TREE_OPERAND ((ENTRY), 0)), 0))
660
661/* Virtual function addresses can be gotten from a virtual function
662   table entry using this macro.  */
663#define FNADDR_FROM_VTABLE_ENTRY(ENTRY) \
664  (!flag_vtable_thunks ? \
665     TREE_VALUE (TREE_CHAIN (TREE_CHAIN (CONSTRUCTOR_ELTS (ENTRY)))) \
666   : TREE_CODE (TREE_OPERAND ((ENTRY), 0)) != THUNK_DECL ? (ENTRY) \
667   : DECL_INITIAL (TREE_OPERAND ((ENTRY), 0)))
668#define SET_FNADDR_FROM_VTABLE_ENTRY(ENTRY,VALUE) \
669  (TREE_VALUE (TREE_CHAIN (TREE_CHAIN (CONSTRUCTOR_ELTS (ENTRY)))) = (VALUE))
670#define FUNCTION_ARG_CHAIN(NODE) (TREE_CHAIN (TYPE_ARG_TYPES (TREE_TYPE (NODE))))
671#define PROMOTES_TO_AGGR_TYPE(NODE,CODE)	\
672  (((CODE) == TREE_CODE (NODE)			\
673       && IS_AGGR_TYPE (TREE_TYPE (NODE)))	\
674   || IS_AGGR_TYPE (NODE))
675
676/* Nonzero iff TYPE is uniquely derived from PARENT.  Under MI, PARENT can
677   be an ambiguous base class of TYPE, and this macro will be false.  */
678#define UNIQUELY_DERIVED_FROM_P(PARENT, TYPE) (get_base_distance (PARENT, TYPE, 0, (tree *)0) >= 0)
679#define ACCESSIBLY_DERIVED_FROM_P(PARENT, TYPE) (get_base_distance (PARENT, TYPE, -1, (tree *)0) >= 0)
680#define ACCESSIBLY_UNIQUELY_DERIVED_P(PARENT, TYPE) (get_base_distance (PARENT, TYPE, 1, (tree *)0) >= 0)
681#define DERIVED_FROM_P(PARENT, TYPE) (get_base_distance (PARENT, TYPE, 0, (tree *)0) != -1)
682
683/* This structure provides additional information above and beyond
684   what is provide in the ordinary tree_type.  In the past, we used it
685   for the types of class types, template parameters types, typename
686   types, and so forth.  However, there can be many (tens to hundreds
687   of thousands) of template parameter types in a compilation, and
688   there's no need for this additional information in that case.
689   Therefore, we now use this data structure only for class types.
690
691   In the past, it was thought that there would be relatively few
692   class types.  However, in the presence of heavy use of templates,
693   many (i.e., thousands) of classes can easily be generated.
694   Therefore, we should endeavor to keep the size of this structure to
695   a minimum.  */
696struct lang_type
697{
698  struct
699    {
700      unsigned has_type_conversion : 1;
701      unsigned has_init_ref : 1;
702      unsigned has_default_ctor : 1;
703      unsigned uses_multiple_inheritance : 1;
704      unsigned const_needs_init : 1;
705      unsigned ref_needs_init : 1;
706      unsigned has_const_assign_ref : 1;
707      unsigned anon_aggr : 1;
708
709      unsigned has_nonpublic_ctor : 2;
710      unsigned has_nonpublic_assign_ref : 2;
711      unsigned vtable_needs_writing : 1;
712      unsigned has_assign_ref : 1;
713      unsigned gets_new : 2;
714
715      unsigned gets_delete : 2;
716      unsigned has_call_overloaded : 1;
717      unsigned has_array_ref_overloaded : 1;
718      unsigned has_arrow_overloaded : 1;
719      unsigned interface_only : 1;
720      unsigned interface_unknown : 1;
721      unsigned needs_virtual_reinit : 1;
722
723      unsigned marks: 6;
724      unsigned vec_delete_takes_size : 1;
725      unsigned declared_class : 1;
726
727      unsigned being_defined : 1;
728      unsigned redefined : 1;
729      unsigned debug_requested : 1;
730      unsigned use_template : 2;
731      unsigned got_semicolon : 1;
732      unsigned ptrmemfunc_flag : 1;
733      unsigned is_signature : 1;
734
735      unsigned is_signature_pointer : 1;
736      unsigned is_signature_reference : 1;
737      unsigned has_opaque_typedecls : 1;
738      unsigned sigtable_has_been_generated : 1;
739      unsigned was_anonymous : 1;
740      unsigned has_real_assign_ref : 1;
741      unsigned has_const_init_ref : 1;
742      unsigned has_complex_init_ref : 1;
743
744      unsigned has_complex_assign_ref : 1;
745      unsigned has_abstract_assign_ref : 1;
746      unsigned non_aggregate : 1;
747      unsigned is_partial_instantiation : 1;
748      unsigned has_mutable : 1;
749      unsigned com_interface : 1;
750      /* When adding a flag here, consider whether or not it ought to
751	 apply to a template instance if it applies to the template.
752	 If so, make sure to copy it in instantiate_class_template!  */
753
754      /* The MIPS compiler gets it wrong if this struct also
755	 does not fill out to a multiple of 4 bytes.  Add a
756	 member `dummy' with new bits if you go over the edge.  */
757      unsigned dummy : 10;
758    } type_flags;
759
760  int vsize;
761  int vfield_parent;
762
763  union tree_node *vfields;
764  union tree_node *vbases;
765
766  union tree_node *tags;
767
768  union tree_node *search_slot;
769
770  unsigned char align;
771  /* Room for another three unsigned chars.  */
772
773  union tree_node *size;
774
775  union tree_node *abstract_virtuals;
776  union tree_node *friend_classes;
777
778  union tree_node *rtti;
779
780  union tree_node *methods;
781
782  union tree_node *signature;
783  union tree_node *signature_pointer_to;
784  union tree_node *signature_reference_to;
785  union tree_node *template_info;
786  tree befriending_classes;
787};
788
789/* Indicates whether or not (and how) a template was expanded for this class.
790     0=no information yet/non-template class
791     1=implicit template instantiation
792     2=explicit template specialization
793     3=explicit template instantiation  */
794#define CLASSTYPE_USE_TEMPLATE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.use_template)
795
796/* Fields used for storing information before the class is defined.
797   After the class is defined, these fields hold other information.  */
798
799/* List of friends which were defined inline in this class definition.  */
800#define CLASSTYPE_INLINE_FRIENDS(NODE) (TYPE_NONCOPIED_PARTS (NODE))
801
802/* Nonzero for _CLASSTYPE means that operator new and delete are defined,
803   respectively.  */
804#define TYPE_GETS_NEW(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.gets_new)
805#define TYPE_GETS_DELETE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.gets_delete)
806#define TYPE_GETS_REG_DELETE(NODE) (TYPE_GETS_DELETE (NODE) & 1)
807
808/* Nonzero for _CLASSTYPE means that operator vec delete is defined and
809   takes the optional size_t argument.  */
810#define TYPE_VEC_DELETE_TAKES_SIZE(NODE) \
811  (TYPE_LANG_SPECIFIC(NODE)->type_flags.vec_delete_takes_size)
812#define TYPE_VEC_NEW_USES_COOKIE(NODE) \
813  (TYPE_NEEDS_DESTRUCTOR (NODE) \
814   || (TYPE_LANG_SPECIFIC (NODE) && TYPE_VEC_DELETE_TAKES_SIZE (NODE)))
815
816/* Nonzero means that this _CLASSTYPE node defines ways of converting
817   itself to other types.  */
818#define TYPE_HAS_CONVERSION(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_type_conversion)
819
820/* Nonzero means that this _CLASSTYPE node overloads operator=(X&).  */
821#define TYPE_HAS_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_assign_ref)
822#define TYPE_HAS_CONST_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_const_assign_ref)
823
824/* Nonzero means that this _CLASSTYPE node has an X(X&) constructor.  */
825#define TYPE_HAS_INIT_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_init_ref)
826#define TYPE_HAS_CONST_INIT_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_const_init_ref)
827
828/* Nonzero means that this type is being defined.  I.e., the left brace
829   starting the definition of this type has been seen.  */
830#define TYPE_BEING_DEFINED(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.being_defined)
831/* Nonzero means that this type has been redefined.  In this case, if
832   convenient, don't reprocess any methods that appear in its redefinition.  */
833#define TYPE_REDEFINED(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.redefined)
834
835/* Nonzero means that this type is a signature.  */
836# define IS_SIGNATURE(NODE) (TYPE_LANG_SPECIFIC(NODE)?TYPE_LANG_SPECIFIC(NODE)->type_flags.is_signature:0)
837# define SET_SIGNATURE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.is_signature=1)
838# define CLEAR_SIGNATURE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.is_signature=0)
839
840/* Nonzero means that this type is a signature pointer type.  */
841# define IS_SIGNATURE_POINTER(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.is_signature_pointer)
842
843/* Nonzero means that this type is a signature reference type.  */
844# define IS_SIGNATURE_REFERENCE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.is_signature_reference)
845
846/* Nonzero means that this signature contains opaque type declarations.  */
847#define SIGNATURE_HAS_OPAQUE_TYPEDECLS(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_opaque_typedecls)
848
849/* Nonzero means that a signature table has been generated
850   for this signature.  */
851#define SIGTABLE_HAS_BEEN_GENERATED(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.sigtable_has_been_generated)
852
853/* If NODE is a class, this is the signature type that contains NODE's
854   signature after it has been computed using sigof().  */
855#define CLASSTYPE_SIGNATURE(NODE) (TYPE_LANG_SPECIFIC(NODE)->signature)
856
857/* If NODE is a signature pointer or signature reference, this is the
858   signature type the pointer/reference points to.  */
859#define SIGNATURE_TYPE(NODE) (TYPE_LANG_SPECIFIC(NODE)->signature)
860
861/* If NODE is a signature, this is a vector of all methods defined
862   in the signature or in its base types together with their default
863   implementations.  */
864#define SIGNATURE_METHOD_VEC(NODE) (TYPE_LANG_SPECIFIC(NODE)->signature)
865
866/* If NODE is a signature, this is the _TYPE node that contains NODE's
867   signature pointer type.  */
868#define SIGNATURE_POINTER_TO(NODE) (TYPE_LANG_SPECIFIC(NODE)->signature_pointer_to)
869
870/* If NODE is a signature, this is the _TYPE node that contains NODE's
871   signature reference type.  */
872#define SIGNATURE_REFERENCE_TO(NODE) (TYPE_LANG_SPECIFIC(NODE)->signature_reference_to)
873
874/* The is the basetype that contains NODE's rtti.  */
875#define CLASSTYPE_RTTI(NODE) (TYPE_LANG_SPECIFIC(NODE)->rtti)
876
877/* Nonzero means that this _CLASSTYPE node overloads operator().  */
878#define TYPE_OVERLOADS_CALL_EXPR(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_call_overloaded)
879
880/* Nonzero means that this _CLASSTYPE node overloads operator[].  */
881#define TYPE_OVERLOADS_ARRAY_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_array_ref_overloaded)
882
883/* Nonzero means that this _CLASSTYPE node overloads operator->.  */
884#define TYPE_OVERLOADS_ARROW(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_arrow_overloaded)
885
886/* Nonzero means that this _CLASSTYPE (or one of its ancestors) uses
887   multiple inheritance.  If this is 0 for the root of a type
888   hierarchy, then we can use more efficient search techniques.  */
889#define TYPE_USES_MULTIPLE_INHERITANCE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.uses_multiple_inheritance)
890
891/* Nonzero means that this _CLASSTYPE (or one of its ancestors) uses
892   virtual base classes.  If this is 0 for the root of a type
893   hierarchy, then we can use more efficient search techniques.  */
894#define TYPE_USES_VIRTUAL_BASECLASSES(NODE) (TREE_LANG_FLAG_3(NODE))
895
896/* Nonzero means that this _CLASSTYPE uses polymorphic virtual bases.
897   This flag is set only when we use vtable thunks.  */
898#define TYPE_USES_PVBASES(NODE) (TREE_LANG_FLAG_5(NODE))
899
900/* Vector member functions defined in this class.  Each element is
901   either a FUNCTION_DECL, a TEMPLATE_DECL, or an OVERLOAD.  All
902   functions with the same name end up in the same slot.  The first
903   two elements are for constructors, and destructors, respectively.
904   These are followed by ordinary member functions.  There may be
905   empty entries at the end of the vector.  */
906#define CLASSTYPE_METHOD_VEC(NODE) (TYPE_LANG_SPECIFIC(NODE)->methods)
907
908/* The first type conversion operator in the class (the others can be
909   searched with TREE_CHAIN), or the first non-constructor function if
910   there are no type conversion operators.  */
911#define CLASSTYPE_FIRST_CONVERSION(NODE) \
912  TREE_VEC_LENGTH (CLASSTYPE_METHOD_VEC (NODE)) > 2 \
913    ? TREE_VEC_ELT (CLASSTYPE_METHOD_VEC (NODE), 2) \
914    : NULL_TREE;
915
916/* Mark bits for depth-first and breath-first searches.  */
917
918/* Get the value of the Nth mark bit.  */
919#define CLASSTYPE_MARKED_N(NODE, N)					\
920  (((CLASS_TYPE_P (NODE) ? TYPE_LANG_SPECIFIC (NODE)->type_flags.marks	\
921     : TYPE_ALIAS_SET (NODE)) & (1 << N)) != 0)
922
923/* Set the Nth mark bit.  */
924#define SET_CLASSTYPE_MARKED_N(NODE, N)					\
925  (CLASS_TYPE_P (NODE)							\
926   ? (TYPE_LANG_SPECIFIC (NODE)->type_flags.marks |= (1 << (N)))	\
927   : (TYPE_ALIAS_SET (NODE) |= (1 << (N))))
928
929/* Clear the Nth mark bit.  */
930#define CLEAR_CLASSTYPE_MARKED_N(NODE, N)				\
931  (CLASS_TYPE_P (NODE)							\
932   ? (TYPE_LANG_SPECIFIC (NODE)->type_flags.marks &= ~(1 << (N)))	\
933   : (TYPE_ALIAS_SET (NODE) &= ~(1 << (N))))
934
935/* Get the value of the mark bits.  */
936#define CLASSTYPE_MARKED(NODE) CLASSTYPE_MARKED_N(NODE, 0)
937#define CLASSTYPE_MARKED2(NODE) CLASSTYPE_MARKED_N(NODE, 1)
938#define CLASSTYPE_MARKED3(NODE) CLASSTYPE_MARKED_N(NODE, 2)
939#define CLASSTYPE_MARKED4(NODE) CLASSTYPE_MARKED_N(NODE, 3)
940#define CLASSTYPE_MARKED5(NODE) CLASSTYPE_MARKED_N(NODE, 4)
941#define CLASSTYPE_MARKED6(NODE) CLASSTYPE_MARKED_N(NODE, 5)
942
943/* Macros to modify the above flags */
944#define SET_CLASSTYPE_MARKED(NODE)    SET_CLASSTYPE_MARKED_N(NODE, 0)
945#define CLEAR_CLASSTYPE_MARKED(NODE)  CLEAR_CLASSTYPE_MARKED_N(NODE, 0)
946#define SET_CLASSTYPE_MARKED2(NODE)   SET_CLASSTYPE_MARKED_N(NODE, 1)
947#define CLEAR_CLASSTYPE_MARKED2(NODE) CLEAR_CLASSTYPE_MARKED_N(NODE, 1)
948#define SET_CLASSTYPE_MARKED3(NODE)   SET_CLASSTYPE_MARKED_N(NODE, 2)
949#define CLEAR_CLASSTYPE_MARKED3(NODE) CLEAR_CLASSTYPE_MARKED_N(NODE, 2)
950#define SET_CLASSTYPE_MARKED4(NODE)   SET_CLASSTYPE_MARKED_N(NODE, 3)
951#define CLEAR_CLASSTYPE_MARKED4(NODE) CLEAR_CLASSTYPE_MARKED_N(NODE, 3)
952#define SET_CLASSTYPE_MARKED5(NODE)   SET_CLASSTYPE_MARKED_N(NODE, 4)
953#define CLEAR_CLASSTYPE_MARKED5(NODE) CLEAR_CLASSTYPE_MARKED_N(NODE, 4)
954#define SET_CLASSTYPE_MARKED6(NODE)   SET_CLASSTYPE_MARKED_N(NODE, 5)
955#define CLEAR_CLASSTYPE_MARKED6(NODE) CLEAR_CLASSTYPE_MARKED_N(NODE, 5)
956
957/* A list of the nested tag-types (class, struct, union, or enum)
958   found within this class.  The TREE_PURPOSE of each node is the name
959   of the type; the TREE_VALUE is the type itself.  This list includes
960   nested member class templates.  */
961#define CLASSTYPE_TAGS(NODE)		(TYPE_LANG_SPECIFIC(NODE)->tags)
962
963/* If this class has any bases, this is the number of the base class from
964   which our VFIELD is based, -1 otherwise.  If this class has no base
965   classes, this is not used.
966   In D : B1, B2, PARENT would be 0, if D's vtable came from B1,
967   1, if D's vtable came from B2.  */
968#define CLASSTYPE_VFIELD_PARENT(NODE)	(TYPE_LANG_SPECIFIC(NODE)->vfield_parent)
969
970/* Remove when done merging.  */
971#define CLASSTYPE_VFIELD(NODE) TYPE_VFIELD(NODE)
972
973/* The number of virtual functions defined for this
974   _CLASSTYPE node.  */
975#define CLASSTYPE_VSIZE(NODE) (TYPE_LANG_SPECIFIC(NODE)->vsize)
976/* The list of binfos of virtual base classes that this type uses.  */
977#define CLASSTYPE_VBASECLASSES(NODE) (TYPE_LANG_SPECIFIC(NODE)->vbases)
978/* The virtual function pointer fields that this type contains.  */
979#define CLASSTYPE_VFIELDS(NODE) (TYPE_LANG_SPECIFIC(NODE)->vfields)
980
981/* Number of baseclasses defined for this type.
982   0 means no base classes.  */
983#define CLASSTYPE_N_BASECLASSES(NODE) \
984  (TYPE_BINFO_BASETYPES (NODE) ? TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES(NODE)) : 0)
985
986/* Used for keeping search-specific information.  Any search routine
987   which uses this must define what exactly this slot is used for.  */
988#define CLASSTYPE_SEARCH_SLOT(NODE) (TYPE_LANG_SPECIFIC(NODE)->search_slot)
989
990/* These are the size, mode and alignment of the type without its
991   virtual base classes, for when we use this type as a base itself.  */
992#define CLASSTYPE_SIZE(NODE) (TYPE_LANG_SPECIFIC(NODE)->size)
993#define CLASSTYPE_ALIGN(NODE) (TYPE_LANG_SPECIFIC(NODE)->align)
994
995/* A cons list of virtual functions which cannot be inherited by
996   derived classes.  When deriving from this type, the derived
997   class must provide its own definition for each of these functions.  */
998#define CLASSTYPE_ABSTRACT_VIRTUALS(NODE) (TYPE_LANG_SPECIFIC(NODE)->abstract_virtuals)
999
1000/* Nonzero means that this aggr type has been `closed' by a semicolon.  */
1001#define CLASSTYPE_GOT_SEMICOLON(NODE) (TYPE_LANG_SPECIFIC (NODE)->type_flags.got_semicolon)
1002
1003/* Nonzero means that the main virtual function table pointer needs to be
1004   set because base constructors have placed the wrong value there.
1005   If this is zero, it means that they placed the right value there,
1006   and there is no need to change it.  */
1007#define CLASSTYPE_NEEDS_VIRTUAL_REINIT(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.needs_virtual_reinit)
1008
1009/* Nonzero means that if this type has virtual functions, that
1010   the virtual function table will be written out.  */
1011#define CLASSTYPE_VTABLE_NEEDS_WRITING(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.vtable_needs_writing)
1012
1013/* Nonzero means that this type has an X() constructor.  */
1014#define TYPE_HAS_DEFAULT_CONSTRUCTOR(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_default_ctor)
1015
1016/* Nonzero means the type declared a ctor as private or protected.  We
1017   use this to make sure we don't try to generate a copy ctor for a
1018   class that has a member of type NODE.  */
1019#define TYPE_HAS_NONPUBLIC_CTOR(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_nonpublic_ctor)
1020
1021/* Ditto, for operator=.  */
1022#define TYPE_HAS_NONPUBLIC_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_nonpublic_assign_ref)
1023
1024/* Nonzero means that this type contains a mutable member */
1025#define CLASSTYPE_HAS_MUTABLE(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_mutable)
1026#define TYPE_HAS_MUTABLE_P(NODE) (cp_has_mutable_p (NODE))
1027
1028/* Nonzero means that this type is meant for communication via COM.  */
1029#define CLASSTYPE_COM_INTERFACE(NODE) \
1030  (TYPE_LANG_SPECIFIC(NODE)->type_flags.com_interface)
1031
1032/* A list of class types of which this type is a friend.  The
1033   TREE_VALUE is normally a TYPE, but will be a TEMPLATE_DECL in the
1034   case of a template friend.  */
1035#define CLASSTYPE_FRIEND_CLASSES(NODE) (TYPE_LANG_SPECIFIC(NODE)->friend_classes)
1036
1037/* A list of the classes which grant friendship to this class.  */
1038#define CLASSTYPE_BEFRIENDING_CLASSES(NODE) \
1039  (TYPE_LANG_SPECIFIC (NODE)->befriending_classes)
1040
1041/* Say whether this node was declared as a "class" or a "struct".  */
1042#define CLASSTYPE_DECLARED_CLASS(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.declared_class)
1043
1044/* Nonzero if this class has const members which have no specified initialization.  */
1045#define CLASSTYPE_READONLY_FIELDS_NEED_INIT(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.const_needs_init)
1046
1047/* Nonzero if this class has ref members which have no specified initialization.  */
1048#define CLASSTYPE_REF_FIELDS_NEED_INIT(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.ref_needs_init)
1049
1050/* Nonzero if this class is included from a header file which employs
1051   `#pragma interface', and it is not included in its implementation file.  */
1052#define CLASSTYPE_INTERFACE_ONLY(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_only)
1053
1054/* Same as above, but for classes whose purpose we do not know.  */
1055#define CLASSTYPE_INTERFACE_UNKNOWN(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_unknown)
1056#define CLASSTYPE_INTERFACE_KNOWN(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_unknown == 0)
1057#define SET_CLASSTYPE_INTERFACE_UNKNOWN_X(NODE,X) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_unknown = !!(X))
1058#define SET_CLASSTYPE_INTERFACE_UNKNOWN(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_unknown = 1)
1059#define SET_CLASSTYPE_INTERFACE_KNOWN(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.interface_unknown = 0)
1060
1061/* Nonzero if a _DECL node requires us to output debug info for this class.  */
1062#define CLASSTYPE_DEBUG_REQUESTED(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.debug_requested)
1063
1064/* Additional macros for inheritance information.  */
1065
1066/* The BINFO_INHERITANCE_CHAIN is used opposite to the description in
1067   gcc/tree.h.  In particular if D is derived from B then the BINFO
1068   for B (in D) will have a BINFO_INHERITANCE_CHAIN pointing to
1069   D.  In tree.h, this pointer is described as pointing in other
1070   direction.  There is a different BINFO for each path to a virtual
1071   base; BINFOs for virtual bases are not shared.  In addition, shared
1072   versions of each of the virtual class BINFOs are stored in
1073   CLASSTYPE_VBASECLASSES.
1074
1075   We use TREE_VIA_PROTECTED and TREE_VIA_PUBLIC, but private
1076   inheritance is indicated by the absence of the other two flags, not
1077   by TREE_VIAR_PRIVATE, which is unused.
1078
1079   The TREE_CHAIN is for scratch space in search.c.  */
1080
1081/* Nonzero means marked by DFS or BFS search, including searches
1082   by `get_binfo' and `get_base_distance'.  */
1083#define BINFO_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?CLASSTYPE_MARKED(BINFO_TYPE(NODE)):TREE_LANG_FLAG_0(NODE))
1084/* Macros needed because of C compilers that don't allow conditional
1085   expressions to be lvalues.  Grr!  */
1086#define SET_BINFO_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?SET_CLASSTYPE_MARKED(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_0(NODE)=1))
1087#define CLEAR_BINFO_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?CLEAR_CLASSTYPE_MARKED(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_0(NODE)=0))
1088
1089/* Nonzero means marked in search through virtual inheritance hierarchy.  */
1090#define BINFO_VBASE_MARKED(NODE) CLASSTYPE_MARKED2 (BINFO_TYPE (NODE))
1091/* Modifier macros */
1092#define SET_BINFO_VBASE_MARKED(NODE) SET_CLASSTYPE_MARKED2 (BINFO_TYPE (NODE))
1093#define CLEAR_BINFO_VBASE_MARKED(NODE) CLEAR_CLASSTYPE_MARKED2 (BINFO_TYPE (NODE))
1094
1095/* Nonzero means marked in search for members or member functions.  */
1096#define BINFO_FIELDS_MARKED(NODE) \
1097  (TREE_VIA_VIRTUAL(NODE)?CLASSTYPE_MARKED2 (BINFO_TYPE (NODE)):TREE_LANG_FLAG_2(NODE))
1098#define SET_BINFO_FIELDS_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?SET_CLASSTYPE_MARKED2(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_2(NODE)=1))
1099#define CLEAR_BINFO_FIELDS_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?CLEAR_CLASSTYPE_MARKED2(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_2(NODE)=0))
1100
1101/* Nonzero means that this class is on a path leading to a new vtable.  */
1102#define BINFO_VTABLE_PATH_MARKED(NODE) \
1103  (TREE_VIA_VIRTUAL(NODE)?CLASSTYPE_MARKED3(BINFO_TYPE(NODE)):TREE_LANG_FLAG_3(NODE))
1104#define SET_BINFO_VTABLE_PATH_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?SET_CLASSTYPE_MARKED3(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_3(NODE)=1))
1105#define CLEAR_BINFO_VTABLE_PATH_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?CLEAR_CLASSTYPE_MARKED3(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_3(NODE)=0))
1106
1107/* Nonzero means that this class has a new vtable.  */
1108#define BINFO_NEW_VTABLE_MARKED(NODE) \
1109  (TREE_VIA_VIRTUAL(NODE)?CLASSTYPE_MARKED4(BINFO_TYPE(NODE)):TREE_LANG_FLAG_4(NODE))
1110#define SET_BINFO_NEW_VTABLE_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?SET_CLASSTYPE_MARKED4(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_4(NODE)=1))
1111#define CLEAR_BINFO_NEW_VTABLE_MARKED(NODE) (TREE_VIA_VIRTUAL(NODE)?CLEAR_CLASSTYPE_MARKED4(BINFO_TYPE(NODE)):(TREE_LANG_FLAG_4(NODE)=0))
1112
1113/* Nonzero means this class has done dfs_pushdecls.  */
1114#define BINFO_PUSHDECLS_MARKED(NODE) BINFO_VTABLE_PATH_MARKED (NODE)
1115#define SET_BINFO_PUSHDECLS_MARKED(NODE) SET_BINFO_VTABLE_PATH_MARKED (NODE)
1116#define CLEAR_BINFO_PUSHDECLS_MARKED(NODE) CLEAR_BINFO_VTABLE_PATH_MARKED (NODE)
1117
1118/* Used by various search routines.  */
1119#define IDENTIFIER_MARKED(NODE) TREE_LANG_FLAG_0 (NODE)
1120
1121/* Accessor macros for the vfield slots in structures.  */
1122
1123/* Get the assoc info that caused this vfield to exist.  */
1124#define VF_BINFO_VALUE(NODE) TREE_PURPOSE (NODE)
1125
1126/* Get that same information as a _TYPE.  */
1127#define VF_BASETYPE_VALUE(NODE) TREE_VALUE (NODE)
1128
1129/* Get the value of the top-most type dominating the non-`normal' vfields.  */
1130#define VF_DERIVED_VALUE(NODE) (VF_BINFO_VALUE (NODE) ? BINFO_TYPE (VF_BINFO_VALUE (NODE)) : NULL_TREE)
1131
1132/* Get the value of the top-most type that's `normal' for the vfield.  */
1133#define VF_NORMAL_VALUE(NODE) TREE_TYPE (NODE)
1134
1135/* Nonzero for TREE_LIST node means that this list of things
1136   is a list of parameters, as opposed to a list of expressions.  */
1137#define TREE_PARMLIST(NODE) ((NODE)->common.unsigned_flag) /* overloaded! */
1138
1139/* For FUNCTION_TYPE or METHOD_TYPE, a list of the exceptions that
1140   this type can raise.  Each TREE_VALUE is a _TYPE.  The TREE_VALUE
1141   will be NULL_TREE to indicate a throw specification of `(...)', or,
1142   equivalently, no throw specification.  */
1143#define TYPE_RAISES_EXCEPTIONS(NODE) TYPE_NONCOPIED_PARTS (NODE)
1144
1145/* For FUNCTION_TYPE or METHOD_TYPE, return 1 iff it is declared `throw()'.  */
1146#define TYPE_NOTHROW_P(NODE) \
1147  (TYPE_RAISES_EXCEPTIONS (NODE) \
1148   && TREE_VALUE (TYPE_RAISES_EXCEPTIONS (NODE)) == NULL_TREE)
1149
1150/* The binding level associated with the namespace.  */
1151#define NAMESPACE_LEVEL(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.level)
1152
1153
1154/* If a DECL has DECL_LANG_SPECIFIC, it is either a lang_decl_flags or
1155   a lang_decl (which has lang_decl_flags as its initial prefix).  A
1156   FUNCTION_DECL, NAMESPACE_DECL, TYPE_DECL, or USING_DECL may have a
1157   full lang_decl.  A FIELD_DECL, or a static data member VAR_DECL,
1158   will have only lang_decl_flags.  Thus, one should only access the
1159   members of lang_decl that are not in lang_decl_flags for DECLs that
1160   are not FIELD_DECLs or VAR_DECLs.  */
1161
1162struct lang_decl_flags
1163{
1164#ifdef ONLY_INT_FIELDS
1165  int language : 8;
1166#else
1167  enum languages language : 8;
1168#endif
1169
1170  unsigned operator_attr : 1;
1171  unsigned constructor_attr : 1;
1172  unsigned friend_attr : 1;
1173  unsigned static_function : 1;
1174  unsigned const_memfunc : 1;
1175  unsigned volatile_memfunc : 1;
1176  unsigned abstract_virtual : 1;
1177  unsigned permanent_attr : 1 ;
1178
1179  unsigned mutable_flag : 1;
1180  unsigned is_default_implementation : 1;
1181  unsigned saved_inline : 1;
1182  unsigned use_template : 2;
1183  unsigned nonconverting : 1;
1184  unsigned declared_inline : 1;
1185  unsigned not_really_extern : 1;
1186  unsigned needs_final_overrider : 1;
1187  unsigned bitfield : 1;
1188  unsigned defined_in_class : 1;
1189  unsigned constructor_for_vbase_attr : 2;
1190  unsigned dummy : 3;
1191
1192  tree access;
1193  tree context;
1194  tree memfunc_pointer_to;
1195  tree template_info;
1196  struct binding_level *level;
1197};
1198
1199struct lang_decl
1200{
1201  struct lang_decl_flags decl_flags;
1202
1203  tree main_decl_variant;
1204  tree befriending_classes;
1205  struct pending_inline *pending_inline_info;
1206};
1207
1208/* Non-zero if NODE is a _DECL with TREE_READONLY set.  */
1209#define TREE_READONLY_DECL_P(NODE) \
1210  (TREE_READONLY (NODE) && TREE_CODE_CLASS (TREE_CODE (NODE)) == 'd')
1211
1212/* Non-zero iff DECL is memory-based.  The DECL_RTL of
1213   certain const variables might be a CONST_INT, or a REG
1214   in some cases.  We cannot use `memory_operand' as a test
1215   here because on most RISC machines, a variable's address
1216   is not, by itself, a legitimate address.  */
1217#define DECL_IN_MEMORY_P(NODE) \
1218  (DECL_RTL (NODE) != NULL_RTX && GET_CODE (DECL_RTL (NODE)) == MEM)
1219
1220/* For FUNCTION_DECLs: return the language in which this decl
1221   was declared.  */
1222#define DECL_LANGUAGE(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.language)
1223
1224/* For FUNCTION_DECLs: nonzero means that this function is a constructor.  */
1225#define DECL_CONSTRUCTOR_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.constructor_attr)
1226
1227/* There ought to be a better way to find out whether or not something is
1228   a destructor.  */
1229#define DECL_DESTRUCTOR_P(NODE)				\
1230  (DESTRUCTOR_NAME_P (DECL_ASSEMBLER_NAME (NODE))	\
1231   && DECL_LANGUAGE (NODE) == lang_cplusplus)
1232
1233#define DECL_CONV_FN_P(NODE)						     \
1234  (IDENTIFIER_TYPENAME_P (DECL_NAME (NODE)) && TREE_TYPE (DECL_NAME (NODE)))
1235
1236#define CONSTRUCTOR_FOR_VBASE   1
1237#define CONSTRUCTOR_FOR_PVBASE  2
1238#define DESTRUCTOR_FOR_PVBASE   3
1239
1240/* For FUNCTION_DECLs: nonzero means that this function is a con/destructor
1241   for an object with virtual baseclasses.  */
1242#define DECL_CONSTRUCTOR_FOR_VBASE(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.constructor_for_vbase_attr)
1243
1244/* Nonzero means that this function is a constructor for an object
1245   with virtual baseclasses.  */
1246#define DECL_CONSTRUCTOR_FOR_VBASE_P(NODE) \
1247  (DECL_CONSTRUCTOR_FOR_VBASE (NODE) == CONSTRUCTOR_FOR_VBASE)
1248
1249/* Nonzero means that this function is a constructor for an object
1250   with virtual baseclasses which have virtual functions.  */
1251#define DECL_CONSTRUCTOR_FOR_PVBASE_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.constructor_for_vbase_attr == CONSTRUCTOR_FOR_PVBASE)
1252
1253/* Nonzero means that this function is a destructor for an object
1254   with virtual baseclasses which have virtual functions.  */
1255#define DECL_DESTRUCTOR_FOR_PVBASE_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.constructor_for_vbase_attr == DESTRUCTOR_FOR_PVBASE)
1256
1257/* Nonzero means that this function is a wrapper around a PVBASE ctor.  */
1258#define DECL_VLIST_CTOR_WRAPPER_P(NODE) \
1259  (DECL_CONSTRUCTOR_FOR_VBASE_P (NODE) && DECL_VLIST_CTOR_WRAPPED (NODE)\
1260   && TREE_CODE (DECL_VLIST_CTOR_WRAPPED (NODE)) == FUNCTION_DECL \
1261   && DECL_CONSTRUCTOR_FOR_PVBASE_P (DECL_VLIST_CTOR_WRAPPED (NODE)))
1262
1263/* Refers to original function that NODE wraps.  */
1264#define DECL_VLIST_CTOR_WRAPPED(NODE)  DECL_MEMFUNC_POINTER_TO (NODE)
1265
1266/* Non-zero for a FUNCTION_DECL that declares a type-info function.  */
1267#define DECL_TINFO_FN_P(NODE) 					\
1268  (TREE_CODE (NODE) == FUNCTION_DECL				\
1269   && DECL_ARTIFICIAL (NODE)					\
1270   && DECL_LANG_SPECIFIC(NODE)->decl_flags.mutable_flag)
1271
1272/* Mark NODE as a type-info function.  */
1273#define SET_DECL_TINFO_FN_P(NODE) \
1274  (DECL_LANG_SPECIFIC((NODE))->decl_flags.mutable_flag = 1)
1275
1276/* For FUNCTION_DECLs: nonzero means that this function is a default
1277   implementation of a signature method.  */
1278#define IS_DEFAULT_IMPLEMENTATION(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.is_default_implementation)
1279
1280/* Nonzero for _DECL means that this decl appears in (or will appear
1281   in) as a member in a RECORD_TYPE or UNION_TYPE node.  It is also for
1282   detecting circularity in case members are multiply defined.  In the
1283   case of a VAR_DECL, it is also used to determine how program storage
1284   should be allocated.  */
1285#define DECL_IN_AGGR_P(NODE) (DECL_LANG_FLAG_3(NODE))
1286
1287/* Nonzero if the DECL was defined in the class definition itself,
1288   rather than outside the class.  */
1289#define DECL_DEFINED_IN_CLASS_P(DECL) \
1290 (DECL_LANG_SPECIFIC (DECL)->decl_flags.defined_in_class)
1291
1292/* Nonzero for FUNCTION_DECL means that this decl is just a
1293   friend declaration, and should not be added to the list of
1294   member functions for this class.  */
1295#define DECL_FRIEND_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.friend_attr)
1296
1297/* A TREE_LIST of the types which have befriended this FUNCTION_DECL.  */
1298#define DECL_BEFRIENDING_CLASSES(NODE) \
1299  (DECL_LANG_SPECIFIC(NODE)->befriending_classes)
1300
1301/* Nonzero for FUNCTION_DECL means that this decl is a static
1302   member function.  */
1303#define DECL_STATIC_FUNCTION_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.static_function)
1304
1305/* Nonzero for a class member means that it is shared between all objects
1306   of that class.  */
1307#define SHARED_MEMBER_P(NODE) \
1308  (TREE_CODE (NODE) == VAR_DECL || TREE_CODE (NODE) == TYPE_DECL \
1309   || TREE_CODE (NODE) == CONST_DECL)
1310
1311/* Nonzero for FUNCTION_DECL means that this decl is a non-static
1312   member function.  */
1313#define DECL_NONSTATIC_MEMBER_FUNCTION_P(NODE) \
1314  (TREE_CODE (TREE_TYPE (NODE)) == METHOD_TYPE)
1315
1316/* Nonzero for FUNCTION_DECL means that this decl is a member function
1317   (static or non-static).  */
1318#define DECL_FUNCTION_MEMBER_P(NODE) \
1319 (DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE) || DECL_STATIC_FUNCTION_P (NODE))
1320
1321/* Nonzero for FUNCTION_DECL means that this member function
1322   has `this' as const X *const.  */
1323#define DECL_CONST_MEMFUNC_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.const_memfunc)
1324
1325/* Nonzero for FUNCTION_DECL means that this member function
1326   has `this' as volatile X *const.  */
1327#define DECL_VOLATILE_MEMFUNC_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.volatile_memfunc)
1328
1329/* Nonzero for a DECL means that this member is a non-static member.  */
1330#define DECL_NONSTATIC_MEMBER_P(NODE) 		\
1331  ((TREE_CODE (NODE) == FUNCTION_DECL 		\
1332    && DECL_NONSTATIC_MEMBER_FUNCTION_P (NODE))	\
1333   || TREE_CODE (NODE) == FIELD_DECL)
1334
1335/* Nonzero for _DECL means that this member object type
1336   is mutable.  */
1337#define DECL_MUTABLE_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.mutable_flag)
1338
1339/* Nonzero for _DECL means that this constructor is a non-converting
1340   constructor.  */
1341#define DECL_NONCONVERTING_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.nonconverting)
1342
1343/* Nonzero for FUNCTION_DECL means that this member function
1344   exists as part of an abstract class's interface.  */
1345#define DECL_ABSTRACT_VIRTUAL_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.abstract_virtual)
1346
1347/* Nonzero for FUNCTION_DECL means that this member function
1348   must be overridden by derived classes.  */
1349#define DECL_NEEDS_FINAL_OVERRIDER_P(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.needs_final_overrider)
1350
1351/* Nonzero if allocated on permanent_obstack.  */
1352#define LANG_DECL_PERMANENT(LANGDECL) ((LANGDECL)->decl_flags.permanent_attr)
1353
1354/* The _TYPE context in which this _DECL appears.  This field holds the
1355   class where a virtual function instance is actually defined, and the
1356   lexical scope of a friend function defined in a class body. */
1357#define DECL_CLASS_CONTEXT(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.context)
1358#define DECL_REAL_CONTEXT(NODE) \
1359  ((TREE_CODE (NODE) == FUNCTION_DECL && DECL_FUNCTION_MEMBER_P (NODE)) \
1360   ? DECL_CLASS_CONTEXT (NODE) : CP_DECL_CONTEXT (NODE))
1361
1362/* NULL_TREE in DECL_CONTEXT represents the global namespace. */
1363#define CP_DECL_CONTEXT(NODE) \
1364  (DECL_CONTEXT (NODE) ? DECL_CONTEXT (NODE) : global_namespace)
1365#define FROB_CONTEXT(NODE)   ((NODE) == global_namespace ? NULL_TREE : (NODE))
1366
1367/* For a virtual function, the base where we find its vtable entry.
1368   For a non-virtual function, the base where it is defined.  */
1369#define DECL_VIRTUAL_CONTEXT(NODE) DECL_CONTEXT (NODE)
1370
1371/* 1 iff NODE has namespace scope, including the global namespace.  */
1372#define DECL_NAMESPACE_SCOPE_P(NODE) \
1373  (DECL_CONTEXT (NODE) == NULL_TREE \
1374   || TREE_CODE (DECL_CONTEXT (NODE)) == NAMESPACE_DECL)
1375
1376/* 1 iff NODE is a class member.  */
1377#define DECL_CLASS_SCOPE_P(NODE) \
1378  (DECL_CONTEXT (NODE) \
1379   && TREE_CODE_CLASS (TREE_CODE (DECL_CONTEXT (NODE))) == 't')
1380
1381/* 1 iff NODE is function-local.  */
1382#define DECL_FUNCTION_SCOPE_P(NODE) \
1383  (DECL_CONTEXT (NODE) \
1384   && TREE_CODE (DECL_CONTEXT (NODE)) == FUNCTION_DECL)
1385
1386/* For a NAMESPACE_DECL: the list of using namespace directives
1387   The PURPOSE is the used namespace, the value is the namespace
1388   that is the common ancestor. */
1389#define DECL_NAMESPACE_USING(NODE) DECL_VINDEX(NODE)
1390
1391/* In a NAMESPACE_DECL, the DECL_INITIAL is used to record all users
1392   of a namespace, to record the transitive closure of using namespace. */
1393#define DECL_NAMESPACE_USERS(NODE) DECL_INITIAL (NODE)
1394
1395/* In a NAMESPACE_DECL, points to the original namespace if this is
1396   a namespace alias.  */
1397#define DECL_NAMESPACE_ALIAS(NODE) DECL_ABSTRACT_ORIGIN (NODE)
1398#define ORIGINAL_NAMESPACE(NODE)  \
1399  (DECL_NAMESPACE_ALIAS (NODE) ? DECL_NAMESPACE_ALIAS (NODE) : (NODE))
1400
1401/* In a non-local VAR_DECL with static storage duration, this is the
1402   initialization priority.  If this value is zero, the NODE will be
1403   initialized at the DEFAULT_INIT_PRIORITY.  */
1404#define DECL_INIT_PRIORITY(NODE) (DECL_FIELD_SIZE ((NODE)))
1405
1406/* In a TREE_LIST concatenating using directives, indicate indirekt
1407   directives  */
1408#define TREE_INDIRECT_USING(NODE) ((NODE)->common.lang_flag_0)
1409
1410/* In a VAR_DECL for a variable declared in a for statement,
1411   this is the shadowed (local) variable.  */
1412#define DECL_SHADOWED_FOR_VAR(NODE) DECL_RESULT(NODE)
1413
1414/* Points back to the decl which caused this lang_decl to be allocated.  */
1415#define DECL_MAIN_VARIANT(NODE) (DECL_LANG_SPECIFIC(NODE)->main_decl_variant)
1416
1417/* For a FUNCTION_DECL: if this function was declared inline inside of
1418   a class declaration, this is where the text for the function is
1419   squirreled away.  */
1420#define DECL_PENDING_INLINE_INFO(NODE) (DECL_LANG_SPECIFIC(NODE)->pending_inline_info)
1421
1422/* True if on the saved_inlines (see decl2.c) list.  */
1423#define DECL_SAVED_INLINE(DECL) \
1424  (DECL_LANG_SPECIFIC(DECL)->decl_flags.saved_inline)
1425
1426/* For a FUNCTION_DECL: if this function was declared inside a signature
1427   declaration, this is the corresponding member function pointer that was
1428   created for it.  */
1429#define DECL_MEMFUNC_POINTER_TO(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.memfunc_pointer_to)
1430
1431/* For a FIELD_DECL: this points to the signature member function from
1432   which this signature member function pointer was created.  */
1433#define DECL_MEMFUNC_POINTING_TO(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.memfunc_pointer_to)
1434
1435/* For a VAR_DECL or FUNCTION_DECL: template-specific information.  */
1436#define DECL_TEMPLATE_INFO(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.template_info)
1437
1438/* Template information for a RECORD_TYPE or UNION_TYPE.  */
1439#define CLASSTYPE_TEMPLATE_INFO(NODE) (TYPE_LANG_SPECIFIC(NODE)->template_info)
1440
1441/* Template information for an ENUMERAL_TYPE.  Although an enumeration may
1442   not be a primary template, it may be declared within the scope of a
1443   primary template and the enumeration constants may depend on
1444   non-type template parameters.  */
1445#define ENUM_TEMPLATE_INFO(NODE) (TYPE_BINFO (NODE))
1446
1447/* Template information for a template template parameter.  */
1448#define TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO(NODE) (TYPE_BINFO (NODE))
1449
1450/* Template information for an ENUMERAL_, RECORD_, or UNION_TYPE.  */
1451#define TYPE_TEMPLATE_INFO(NODE)			\
1452  (TREE_CODE (NODE) == ENUMERAL_TYPE			\
1453   ? ENUM_TEMPLATE_INFO (NODE) : 			\
1454   (TREE_CODE (NODE) == TEMPLATE_TEMPLATE_PARM		\
1455    ? TEMPLATE_TEMPLATE_PARM_TEMPLATE_INFO (NODE)	\
1456    : CLASSTYPE_TEMPLATE_INFO (NODE)))
1457
1458/* Set the template information for an ENUMERAL_, RECORD_, or
1459   UNION_TYPE to VAL.  */
1460#define SET_TYPE_TEMPLATE_INFO(NODE, VAL) 	\
1461  (TREE_CODE (NODE) == ENUMERAL_TYPE 		\
1462   ? (ENUM_TEMPLATE_INFO (NODE) = VAL) 		\
1463   : (CLASSTYPE_TEMPLATE_INFO (NODE) = VAL))
1464
1465#define TI_TEMPLATE(NODE) (TREE_PURPOSE (NODE))
1466#define TI_ARGS(NODE) (TREE_VALUE (NODE))
1467#define TI_SPEC_INFO(NODE) (TREE_CHAIN (NODE))
1468#define TI_PENDING_TEMPLATE_FLAG(NODE) TREE_LANG_FLAG_1 (NODE)
1469
1470/* The TEMPLATE_DECL instantiated or specialized by NODE.  This
1471   TEMPLATE_DECL will be the immediate parent, not the most general
1472   template.  For example, in:
1473
1474      template <class T> struct S { template <class U> void f(U); }
1475
1476   the FUNCTION_DECL for S<int>::f<double> will have, as its
1477   DECL_TI_TEMPLATE, `template <class U> S<int>::f<U>'.
1478
1479   As a special case, for a member friend template of a template
1480   class, this value will not be a TEMPLATE_DECL, but rather a
1481   LOOKUP_EXPR or IDENTIFIER_NODE indicating the name of the template
1482   and any explicit template arguments provided.  For example, in:
1483
1484     template <class T> struct S { friend void f<int>(int, double); }
1485
1486   the DECL_TI_TEMPLATE will be a LOOKUP_EXPR for `f' and the
1487   DECL_TI_ARGS will be {int}.  */
1488#define DECL_TI_TEMPLATE(NODE)      TI_TEMPLATE (DECL_TEMPLATE_INFO (NODE))
1489
1490/* The template arguments used to obtain this decl from the most
1491   general form of DECL_TI_TEMPLATE.  For the example given for
1492   DECL_TI_TEMPLATE, the DECL_TI_ARGS will be {int, double}.  These
1493   are always the full set of arguments required to instantiate this
1494   declaration from the most general template specialized here.  */
1495#define DECL_TI_ARGS(NODE)          TI_ARGS (DECL_TEMPLATE_INFO (NODE))
1496#define CLASSTYPE_TI_TEMPLATE(NODE) TI_TEMPLATE (CLASSTYPE_TEMPLATE_INFO (NODE))
1497#define CLASSTYPE_TI_ARGS(NODE)     TI_ARGS (CLASSTYPE_TEMPLATE_INFO (NODE))
1498#define CLASSTYPE_TI_SPEC_INFO(NODE) TI_SPEC_INFO (CLASSTYPE_TEMPLATE_INFO (NODE))
1499#define ENUM_TI_TEMPLATE(NODE) 			\
1500  TI_TEMPLATE (ENUM_TEMPLATE_INFO (NODE))
1501#define ENUM_TI_ARGS(NODE)			\
1502  TI_ARGS (ENUM_TEMPLATE_INFO (NODE))
1503
1504/* Like DECL_TI_TEMPLATE, but for an ENUMERAL_, RECORD_, or UNION_TYPE.  */
1505#define TYPE_TI_TEMPLATE(NODE)			\
1506  (TI_TEMPLATE (TYPE_TEMPLATE_INFO (NODE)))
1507
1508/* Like DECL_TI_ARGS, , but for an ENUMERAL_, RECORD_, or UNION_TYPE.  */
1509#define TYPE_TI_ARGS(NODE)			\
1510  (TI_ARGS (TYPE_TEMPLATE_INFO (NODE)))
1511
1512#define INNERMOST_TEMPLATE_PARMS(NODE)  TREE_VALUE(NODE)
1513
1514/* Nonzero if the NODE corresponds to the template parameters for a
1515   member template, whose inline definition is being processed after
1516   the class definition is complete.  */
1517#define TEMPLATE_PARMS_FOR_INLINE(NODE) TREE_LANG_FLAG_1 (NODE)
1518
1519#define DECL_SAVED_TREE(NODE)		DECL_MEMFUNC_POINTER_TO (NODE)
1520#define COMPOUND_STMT_NO_SCOPE(NODE)	TREE_LANG_FLAG_0 (NODE)
1521#define NEW_EXPR_USE_GLOBAL(NODE)	TREE_LANG_FLAG_0 (NODE)
1522#define DELETE_EXPR_USE_GLOBAL(NODE)	TREE_LANG_FLAG_0 (NODE)
1523#define DELETE_EXPR_USE_VEC(NODE)	TREE_LANG_FLAG_1 (NODE)
1524#define LOOKUP_EXPR_GLOBAL(NODE)	TREE_LANG_FLAG_0 (NODE)
1525
1526/* The TYPE_MAIN_DECL for a class template type is a TYPE_DECL, not a
1527   TEMPLATE_DECL.  This macro determines whether or not a given class
1528   type is really a template type, as opposed to an instantiation or
1529   specialization of one.  */
1530#define CLASSTYPE_IS_TEMPLATE(NODE)  \
1531  (CLASSTYPE_TEMPLATE_INFO (NODE)    \
1532   && !CLASSTYPE_USE_TEMPLATE (NODE) \
1533   && PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (NODE)))
1534
1535/* The name used by the user to name the typename type.  Typically,
1536   this is an IDENTIFIER_NODE, and the same as the DECL_NAME on the
1537   corresponding TYPE_DECL.  However, this may also be a
1538   TEMPLATE_ID_EXPR if we had something like `typename X::Y<T>'.  */
1539#define TYPENAME_TYPE_FULLNAME(NODE) TYPE_BINFO (NODE)
1540
1541/* Nonzero if NODE is an implicit typename.  */
1542#define IMPLICIT_TYPENAME_P(NODE) \
1543  (TREE_CODE (NODE) == TYPENAME_TYPE && TREE_TYPE (NODE))
1544
1545/* Nonzero in INTEGER_CST means that this int is negative by dint of
1546   using a twos-complement negated operand.  */
1547#define TREE_NEGATED_INT(NODE) (TREE_LANG_FLAG_0 (NODE))
1548
1549#if 0				/* UNUSED */
1550/* Nonzero in any kind of _EXPR or _REF node means that it is a call
1551   to a storage allocation routine.  If, later, alternate storage
1552   is found to hold the object, this call can be ignored.  */
1553#define TREE_CALLS_NEW(NODE) (TREE_LANG_FLAG_1 (NODE))
1554#endif
1555
1556/* Nonzero in any kind of _TYPE that uses multiple inheritance
1557   or virtual baseclasses.  */
1558#define TYPE_USES_COMPLEX_INHERITANCE(NODE) (TREE_LANG_FLAG_1 (NODE))
1559
1560#if 0				/* UNUSED */
1561/* Nonzero in IDENTIFIER_NODE means that this name is not the name the user
1562   gave; it's a DECL_NESTED_TYPENAME.  Someone may want to set this on
1563   mangled function names, too, but it isn't currently.  */
1564#define TREE_MANGLED(NODE) (FOO)
1565#endif
1566
1567#if 0				/* UNUSED */
1568/* Nonzero in IDENTIFIER_NODE means that this name is overloaded, and
1569   should be looked up in a non-standard way.  */
1570#define DECL_OVERLOADED(NODE) (FOO)
1571#endif
1572
1573/* Nonzero if this (non-TYPE)_DECL has its virtual attribute set.
1574   For a FUNCTION_DECL, this is when the function is a virtual function.
1575   For a VAR_DECL, this is when the variable is a virtual function table.
1576   For a FIELD_DECL, when the field is the field for the virtual function table.
1577   For an IDENTIFIER_NODE, nonzero if any function with this name
1578   has been declared virtual.
1579
1580   For a _TYPE if it uses virtual functions (or is derived from
1581   one that does).  */
1582#define TYPE_VIRTUAL_P(NODE) (TREE_LANG_FLAG_2 (NODE))
1583
1584extern int flag_new_for_scope;
1585
1586/* This flag is true of a local VAR_DECL if it was declared in a for
1587   statement, but we are no longer in the scope of the for.  */
1588#define DECL_DEAD_FOR_LOCAL(NODE) DECL_LANG_FLAG_7 (NODE)
1589
1590/* This flag is set on a VAR_DECL that is a DECL_DEAD_FOR_LOCAL
1591   if we already emitted a warning about using it.  */
1592#define DECL_ERROR_REPORTED(NODE) DECL_LANG_FLAG_0 (NODE)
1593
1594/* This _DECL represents a compiler-generated entity.  */
1595#define SET_DECL_ARTIFICIAL(NODE) (DECL_ARTIFICIAL (NODE) = 1)
1596
1597/* Record whether a typedef for type `int' was actually `signed int'.  */
1598#define C_TYPEDEF_EXPLICITLY_SIGNED(exp) DECL_LANG_FLAG_1 ((exp))
1599
1600/* In a FIELD_DECL, nonzero if the decl was originally a bitfield.  */
1601#define DECL_C_BIT_FIELD(NODE) \
1602  (DECL_LANG_SPECIFIC (NODE) && DECL_LANG_SPECIFIC (NODE)->decl_flags.bitfield)
1603#define SET_DECL_C_BIT_FIELD(NODE) \
1604  (DECL_LANG_SPECIFIC (NODE)->decl_flags.bitfield = 1)
1605
1606/* Nonzero if the type T promotes to itself.
1607   ANSI C states explicitly the list of types that promote;
1608   in particular, short promotes to int even if they have the same width.  */
1609#define C_PROMOTING_INTEGER_TYPE_P(t)				\
1610  (TREE_CODE ((t)) == INTEGER_TYPE				\
1611   && (TYPE_MAIN_VARIANT (t) == char_type_node			\
1612       || TYPE_MAIN_VARIANT (t) == signed_char_type_node	\
1613       || TYPE_MAIN_VARIANT (t) == unsigned_char_type_node	\
1614       || TYPE_MAIN_VARIANT (t) == short_integer_type_node	\
1615       || TYPE_MAIN_VARIANT (t) == short_unsigned_type_node))
1616
1617#define INTEGRAL_CODE_P(CODE) \
1618  (CODE == INTEGER_TYPE || CODE == ENUMERAL_TYPE || CODE == BOOLEAN_TYPE)
1619#define ARITHMETIC_TYPE_P(TYPE) (INTEGRAL_TYPE_P (TYPE) || FLOAT_TYPE_P (TYPE))
1620
1621/* Mark which labels are explicitly declared.
1622   These may be shadowed, and may be referenced from nested functions.  */
1623#define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label)
1624
1625/* Nonzero for _TYPE means that the _TYPE defines
1626   at least one constructor.  */
1627#define TYPE_HAS_CONSTRUCTOR(NODE) (TYPE_LANG_FLAG_1(NODE))
1628
1629/* When appearing in an INDIRECT_REF, it means that the tree structure
1630   underneath is actually a call to a constructor.  This is needed
1631   when the constructor must initialize local storage (which can
1632   be automatically destroyed), rather than allowing it to allocate
1633   space from the heap.
1634
1635   When appearing in a SAVE_EXPR, it means that underneath
1636   is a call to a constructor.
1637
1638   When appearing in a CONSTRUCTOR, it means that it was
1639   a GNU C constructor expression.
1640
1641   When appearing in a FIELD_DECL, it means that this field
1642   has been duly initialized in its constructor.  */
1643#define TREE_HAS_CONSTRUCTOR(NODE) (TREE_LANG_FLAG_4(NODE))
1644
1645#define EMPTY_CONSTRUCTOR_P(NODE) (TREE_CODE (NODE) == CONSTRUCTOR	   \
1646				   && CONSTRUCTOR_ELTS (NODE) == NULL_TREE \
1647				   && ! TREE_HAS_CONSTRUCTOR (NODE))
1648
1649#if 0
1650/* Indicates that a NON_LVALUE_EXPR came from a C++ reference.
1651   Used to generate more helpful error message in case somebody
1652   tries to take its address.  */
1653#define TREE_REFERENCE_EXPR(NODE) (TREE_LANG_FLAG_3(NODE))
1654#endif
1655
1656/* Nonzero for _TYPE means that the _TYPE defines a destructor.  */
1657#define TYPE_HAS_DESTRUCTOR(NODE) (TYPE_LANG_FLAG_2(NODE))
1658
1659#if 0
1660/* Nonzero for _TYPE node means that creating an object of this type
1661   will involve a call to a constructor.  This can apply to objects
1662   of ARRAY_TYPE if the type of the elements needs a constructor.  */
1663#define TYPE_NEEDS_CONSTRUCTING(NODE) ... defined in ../tree.h ...
1664#endif
1665
1666/* Nonzero means that an object of this type can not be initialized using
1667   an initializer list.  */
1668#define CLASSTYPE_NON_AGGREGATE(NODE) \
1669  (TYPE_LANG_SPECIFIC (NODE)->type_flags.non_aggregate)
1670#define TYPE_NON_AGGREGATE_CLASS(NODE) \
1671  (IS_AGGR_TYPE (NODE) && CLASSTYPE_NON_AGGREGATE (NODE))
1672
1673/* Nonzero if there is a user-defined X::op=(x&) for this class.  */
1674#define TYPE_HAS_REAL_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_real_assign_ref)
1675#define TYPE_HAS_COMPLEX_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_complex_assign_ref)
1676#define TYPE_HAS_ABSTRACT_ASSIGN_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_abstract_assign_ref)
1677#define TYPE_HAS_COMPLEX_INIT_REF(NODE) (TYPE_LANG_SPECIFIC(NODE)->type_flags.has_complex_init_ref)
1678
1679/* Nonzero for _TYPE node means that destroying an object of this type
1680   will involve a call to a destructor.  This can apply to objects
1681   of ARRAY_TYPE is the type of the elements needs a destructor.  */
1682#define TYPE_NEEDS_DESTRUCTOR(NODE) (TYPE_LANG_FLAG_4(NODE))
1683
1684/* Nonzero for class type means that initialization of this type can use
1685   a bitwise copy.  */
1686#define TYPE_HAS_TRIVIAL_INIT_REF(NODE) \
1687  (TYPE_HAS_INIT_REF (NODE) && ! TYPE_HAS_COMPLEX_INIT_REF (NODE))
1688
1689/* Nonzero for class type means that assignment of this type can use
1690   a bitwise copy.  */
1691#define TYPE_HAS_TRIVIAL_ASSIGN_REF(NODE) \
1692  (TYPE_HAS_ASSIGN_REF (NODE) && ! TYPE_HAS_COMPLEX_ASSIGN_REF (NODE))
1693
1694#define TYPE_PTRMEM_P(NODE)					\
1695  (TREE_CODE (NODE) == POINTER_TYPE				\
1696   && TREE_CODE (TREE_TYPE (NODE)) == OFFSET_TYPE)
1697#define TYPE_PTR_P(NODE)				\
1698  (TREE_CODE (NODE) == POINTER_TYPE			\
1699   && TREE_CODE (TREE_TYPE (NODE)) != OFFSET_TYPE)
1700#define TYPE_PTROB_P(NODE)						\
1701  (TYPE_PTR_P (NODE) && TREE_CODE (TREE_TYPE (NODE)) != FUNCTION_TYPE	\
1702   && TREE_CODE (TREE_TYPE (NODE)) != VOID_TYPE)
1703#define TYPE_PTROBV_P(NODE)						\
1704  (TYPE_PTR_P (NODE) && TREE_CODE (TREE_TYPE (NODE)) != FUNCTION_TYPE)
1705#define TYPE_PTRFN_P(NODE)				\
1706  (TREE_CODE (NODE) == POINTER_TYPE			\
1707   && TREE_CODE (TREE_TYPE (NODE)) == FUNCTION_TYPE)
1708
1709/* Nonzero for _TYPE node means that this type is a pointer to member
1710   function type.  */
1711#define TYPE_PTRMEMFUNC_P(NODE) \
1712  (TREE_CODE(NODE) == RECORD_TYPE && TYPE_PTRMEMFUNC_FLAG (NODE))
1713#define TYPE_PTRMEMFUNC_FLAG(NODE) \
1714  (TYPE_LANG_SPECIFIC(NODE)->type_flags.ptrmemfunc_flag)
1715
1716/* A pointer-to-function member type looks like:
1717
1718   struct {
1719     short __delta;
1720     short __index;
1721     union {
1722       P __pfn;
1723       short __delta2;
1724     } __pfn_or_delta2;
1725   };
1726
1727   where P is a POINTER_TYPE to a METHOD_TYPE appropriate for the
1728   pointer to member.  The fields are used as follows:
1729
1730     If __INDEX is -1, then the function to call is non-virtual, and
1731     is located at the address given by __PFN.
1732
1733     If __INDEX is zero, then this a NULL pointer-to-member.
1734
1735     Otherwise, the function to call is virtual.  Then, __DELTA2 gives
1736     the offset from an instance of the object to the virtual function
1737     table, and __INDEX - 1 is the index into the vtable to use to
1738     find the function.
1739
1740     The value to use for the THIS parameter is the address of the
1741     object plus __DELTA.
1742
1743   For example, given:
1744
1745     struct B1 {
1746       int i;
1747     };
1748
1749     struct B2 {
1750       double d;
1751       void f();
1752     };
1753
1754     struct S : public B1, B2 {};
1755
1756   the pointer-to-member for `&S::f' looks like:
1757
1758     { 4, -1, { &f__2B2 } };
1759
1760   The `4' means that given an `S*' you have to add 4 bytes to get to
1761   the address of the `B2*'.  Then, the -1 indicates that this is a
1762   non-virtual function.  Of course, `&f__2B2' is the name of that
1763   function.
1764
1765   (Of course, the exactl values may differ depending on the mangling
1766   scheme, sizes of types, and such.).  */
1767
1768/* Get the POINTER_TYPE to the METHOD_TYPE associated with this
1769   pointer to member function.  TYPE_PTRMEMFUNC_P _must_ be true,
1770   before using this macro.  */
1771#define TYPE_PTRMEMFUNC_FN_TYPE(NODE) (TREE_TYPE (TYPE_FIELDS (TREE_TYPE (TREE_CHAIN (TREE_CHAIN (TYPE_FIELDS (NODE)))))))
1772
1773/* Returns `A' for a type like `int (A::*)(double)' */
1774#define TYPE_PTRMEMFUNC_OBJECT_TYPE(NODE) \
1775  TYPE_METHOD_BASETYPE (TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (NODE)))
1776
1777/* These are use to manipulate the canonical RECORD_TYPE from the
1778   hashed POINTER_TYPE, and can only be used on the POINTER_TYPE.  */
1779#define TYPE_GET_PTRMEMFUNC_TYPE(NODE) ((tree)TYPE_LANG_SPECIFIC(NODE))
1780#define TYPE_SET_PTRMEMFUNC_TYPE(NODE, VALUE) (TYPE_LANG_SPECIFIC(NODE) = ((struct lang_type *)(void*)(VALUE)))
1781/* These are to get the delta2 and pfn fields from a TYPE_PTRMEMFUNC_P.  */
1782#define DELTA2_FROM_PTRMEMFUNC(NODE) delta2_from_ptrmemfunc ((NODE))
1783#define PFN_FROM_PTRMEMFUNC(NODE) pfn_from_ptrmemfunc ((NODE))
1784
1785/* For a pointer-to-member constant `X::Y' this is the RECORD_TYPE for
1786   `X'.  */
1787#define PTRMEM_CST_CLASS(NODE)				  \
1788   (TYPE_PTRMEM_P (TREE_TYPE (NODE)) 			  \
1789    ? TYPE_OFFSET_BASETYPE (TREE_TYPE (TREE_TYPE (NODE))) \
1790    : TYPE_PTRMEMFUNC_OBJECT_TYPE (TREE_TYPE (NODE)))
1791
1792/* For a pointer-to-member constant `X::Y' this is the _DECL for
1793   `Y'.  */
1794#define PTRMEM_CST_MEMBER(NODE) (((ptrmem_cst_t) NODE)->member)
1795
1796/* Nonzero for VAR_DECL and FUNCTION_DECL node means that `extern' was
1797   specified in its declaration.  */
1798#define DECL_THIS_EXTERN(NODE) (DECL_LANG_FLAG_2(NODE))
1799
1800/* Nonzero for VAR_DECL and FUNCTION_DECL node means that `static' was
1801   specified in its declaration.  */
1802#define DECL_THIS_STATIC(NODE) (DECL_LANG_FLAG_6(NODE))
1803
1804/* Nonzero in FUNCTION_DECL means it is really an operator.
1805   Just used to communicate formatting information to dbxout.c.  */
1806#define DECL_OPERATOR(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.operator_attr)
1807
1808/* Nonzero if TYPE is an anonymous union or struct type.  We have to use a
1809   flag for this because "A union for which objects or pointers are
1810   declared is not an anonymous union" [class.union].  */
1811#define ANON_AGGR_TYPE_P(NODE)				\
1812  (TYPE_LANG_SPECIFIC (NODE)				\
1813   && TYPE_LANG_SPECIFIC (NODE)->type_flags.anon_aggr)
1814#define SET_ANON_AGGR_TYPE_P(NODE)			\
1815  (TYPE_LANG_SPECIFIC (NODE)->type_flags.anon_aggr = 1)
1816
1817#define UNKNOWN_TYPE LANG_TYPE
1818
1819/* Define fields and accessors for nodes representing declared names.  */
1820
1821#if 0
1822/* C++: A derived class may be able to directly use the virtual
1823   function table of a base class.  When it does so, it may
1824   still have a decl node used to access the virtual function
1825   table (so that variables of this type can initialize their
1826   virtual function table pointers by name).  When such thievery
1827   is committed, know exactly which base class's virtual function
1828   table is the one being stolen.  This effectively computes the
1829   transitive closure.  */
1830#define DECL_VPARENT(NODE) ((NODE)->decl.arguments)
1831#endif
1832
1833#define TYPE_WAS_ANONYMOUS(NODE) (TYPE_LANG_SPECIFIC (NODE)->type_flags.was_anonymous)
1834
1835/* C++: all of these are overloaded!  These apply only to TYPE_DECLs.  */
1836
1837/* The format of each node in the DECL_FRIENDLIST is as follows:
1838
1839   The TREE_PURPOSE will be the name of a function, i.e., an
1840   IDENTIFIER_NODE.  The TREE_VALUE will be itself a TREE_LIST, the
1841   list of functions with that name which are friends.  The
1842   TREE_PURPOSE of each node in this sublist will be error_mark_node,
1843   if the function was declared a friend individually, in which case
1844   the TREE_VALUE will be the function_decl.  If, however, all
1845   functions with a given name in a class were declared to be friends,
1846   the TREE_PUROSE will be the class type, and the TREE_VALUE will be
1847   NULL_TREE.  */
1848#define DECL_FRIENDLIST(NODE)		(DECL_INITIAL (NODE))
1849#define FRIEND_NAME(LIST) (TREE_PURPOSE (LIST))
1850#define FRIEND_DECLS(LIST) (TREE_VALUE (LIST))
1851
1852/* The DECL_ACCESS, if non-NULL, is a TREE_LIST.  The TREE_PURPOSE of
1853   each node is a type; the TREE_VALUE is the access granted for this
1854   DECL in that type.  The DECL_ACCESS is set by access declarations.
1855   For example, if a member that would normally be public in a
1856   derived class is made protected, then the derived class and the
1857   protected_access_node will appear in the DECL_ACCESS for the node.  */
1858#define DECL_ACCESS(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.access)
1859
1860/* C++: all of these are overloaded!
1861   These apply to PARM_DECLs and VAR_DECLs.  */
1862#define DECL_REFERENCE_SLOT(NODE) ((tree)(NODE)->decl.arguments)
1863#define SET_DECL_REFERENCE_SLOT(NODE,VAL) ((NODE)->decl.arguments=VAL)
1864
1865/* Accessor macros for C++ template decl nodes.  */
1866
1867/* The DECL_TEMPLATE_PARMS are a list.  The TREE_PURPOSE of each node
1868   is a INT_CST whose TREE_INT_CST_HIGH indicates the level of the
1869   template parameters, with 1 being the outermost set of template
1870   parameters.  The TREE_VALUE is a vector, whose elements are the
1871   template parameters at each level.  Each element in the vector is a
1872   TREE_LIST, whose TREE_VALUE is a PARM_DECL (if the parameter is a
1873   non-type parameter), or a TYPE_DECL (if the parameter is a type
1874   parameter).  The TREE_PURPOSE is the default value, if any.  The
1875   TEMPLATE_PARM_INDEX for the parameter is avilable as the
1876   DECL_INITIAL (for a PARM_DECL) or as the TREE_TYPE (for a
1877   TYPE_DECL).  */
1878#define DECL_TEMPLATE_PARMS(NODE)       DECL_ARGUMENTS(NODE)
1879#define DECL_INNERMOST_TEMPLATE_PARMS(NODE) \
1880   INNERMOST_TEMPLATE_PARMS (DECL_TEMPLATE_PARMS (NODE))
1881#define DECL_NTPARMS(NODE) \
1882   TREE_VEC_LENGTH (DECL_INNERMOST_TEMPLATE_PARMS (NODE))
1883/* For function, method, class-data templates.  */
1884#define DECL_TEMPLATE_RESULT(NODE)      DECL_RESULT(NODE)
1885/* For a static member variable template, the
1886   DECL_TEMPLATE_INSTANTIATIONS list contains the explicitly and
1887   implicitly generated instantiations of the variable.  There are no
1888   partial instantiations of static member variables, so all of these
1889   will be full instantiations.
1890
1891   For a class template the DECL_TEMPLATE_INSTANTIATIONS lists holds
1892   all instantiations and specializations of the class type, including
1893   partial instantiations and partial specializations.
1894
1895   In both cases, the TREE_PURPOSE of each node contains the arguments
1896   used; the TREE_VALUE contains the generated variable.  The template
1897   arguments are always complete.  For example, given:
1898
1899      template <class T> struct S1 {
1900        template <class U> struct S2 {};
1901	template <class U> struct S2<U*> {};
1902      };
1903
1904   the record for the partial specialization will contain, as its
1905   argument list, { {T}, {U*} }, and will be on the
1906   DECL_TEMPLATE_INSTANTIATIONS list for `template <class T> template
1907   <class U> struct S1<T>::S2'.
1908
1909   This list is not used for function templates.  */
1910#define DECL_TEMPLATE_INSTANTIATIONS(NODE) DECL_VINDEX(NODE)
1911/* For a function template, the DECL_TEMPLATE_SPECIALIZATIONS lists
1912   contains all instantiations and specializations of the function,
1913   including partial instantiations.  For a partial instantiation
1914   which is a specialization, this list holds only full
1915   specializations of the template that are instantiations of the
1916   partial instantiation.  For example, given:
1917
1918      template <class T> struct S {
1919        template <class U> void f(U);
1920	template <> void f(T);
1921      };
1922
1923   the `S<int>::f<int>(int)' function will appear on the
1924   DECL_TEMPLATE_SPECIALIZATIONS list for both `template <class T>
1925   template <class U> void S<T>::f(U)' and `template <class T> void
1926   S<int>::f(T)'.  In the latter case, however, it will have only the
1927   innermost set of arguments (T, in this case).  The DECL_TI_TEMPLATE
1928   for the function declaration will point at the specialization, not
1929   the fully general template.
1930
1931   For a class template, this list contains the partial
1932   specializations of this template.  (Full specializations are not
1933   recorded on this list.)  The TREE_PURPOSE holds the innermost
1934   arguments used in the partial specialization (e.g., for `template
1935   <class T> struct S<T*, int>' this will be `T*'.)  The TREE_VALUE
1936   holds the innermost template parameters for the specialization
1937   (e.g., `T' in the example above.)  The TREE_TYPE is the _TYPE node
1938   for the partial specialization.
1939
1940   This list is not used for static variable templates.  */
1941#define DECL_TEMPLATE_SPECIALIZATIONS(NODE)     DECL_SIZE(NODE)
1942#define DECL_TEMPLATE_INJECT(NODE)	DECL_INITIAL(NODE)
1943
1944/* Nonzero for a DECL which is actually a template parameter.  */
1945#define DECL_TEMPLATE_PARM_P(NODE) \
1946  DECL_LANG_FLAG_0 (NODE)
1947
1948#define DECL_TEMPLATE_TEMPLATE_PARM_P(NODE) \
1949  (TREE_CODE (NODE) == TEMPLATE_DECL && DECL_TEMPLATE_PARM_P (NODE))
1950
1951#define DECL_FUNCTION_TEMPLATE_P(NODE)  \
1952  (TREE_CODE (NODE) == TEMPLATE_DECL \
1953   && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == FUNCTION_DECL)
1954
1955/* Nonzero for a DECL that represents a template class.  */
1956#define DECL_CLASS_TEMPLATE_P(NODE) \
1957  (TREE_CODE (NODE) == TEMPLATE_DECL \
1958   && TREE_CODE (DECL_TEMPLATE_RESULT (NODE)) == TYPE_DECL \
1959   && !DECL_TEMPLATE_TEMPLATE_PARM_P (NODE))
1960
1961/* Nonzero if NODE which declares a type.  */
1962#define DECL_DECLARES_TYPE_P(NODE) \
1963  (TREE_CODE (NODE) == TYPE_DECL || DECL_CLASS_TEMPLATE_P (NODE))
1964
1965/* A `primary' template is one that has its own template header.  A
1966   member function of a class template is a template, but not primary.
1967   A member template is primary.  Friend templates are primary, too.  */
1968
1969/* Returns the primary template corresponding to these parameters.  */
1970#define DECL_PRIMARY_TEMPLATE(NODE) \
1971  (TREE_TYPE (DECL_INNERMOST_TEMPLATE_PARMS (NODE)))
1972
1973/* Returns non-zero if NODE is a primary template.  */
1974#define PRIMARY_TEMPLATE_P(NODE) (DECL_PRIMARY_TEMPLATE (NODE) == NODE)
1975
1976#define CLASSTYPE_TEMPLATE_LEVEL(NODE) \
1977  (TREE_INT_CST_HIGH (TREE_PURPOSE (CLASSTYPE_TI_TEMPLATE (NODE))))
1978
1979/* Indicates whether or not (and how) a template was expanded for this
1980   FUNCTION_DECL or VAR_DECL.
1981     0=normal declaration, e.g. int min (int, int);
1982     1=implicit template instantiation
1983     2=explicit template specialization, e.g. int min<int> (int, int);
1984     3=explicit template instantiation, e.g. template int min<int> (int, int);  */
1985#define DECL_USE_TEMPLATE(NODE) (DECL_LANG_SPECIFIC(NODE)->decl_flags.use_template)
1986
1987#define DECL_TEMPLATE_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) & 1)
1988#define CLASSTYPE_TEMPLATE_INSTANTIATION(NODE) \
1989  (CLASSTYPE_USE_TEMPLATE (NODE) & 1)
1990
1991#define DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) == 2)
1992#define SET_DECL_TEMPLATE_SPECIALIZATION(NODE) (DECL_USE_TEMPLATE (NODE) = 2)
1993#define CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
1994  (CLASSTYPE_USE_TEMPLATE (NODE) == 2)
1995#define SET_CLASSTYPE_TEMPLATE_SPECIALIZATION(NODE) \
1996  (CLASSTYPE_USE_TEMPLATE (NODE) = 2)
1997
1998#define DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 1)
1999#define SET_DECL_IMPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 1)
2000#define CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2001  (CLASSTYPE_USE_TEMPLATE(NODE) == 1)
2002#define SET_CLASSTYPE_IMPLICIT_INSTANTIATION(NODE) \
2003  (CLASSTYPE_USE_TEMPLATE(NODE) = 1)
2004
2005#define DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) == 3)
2006#define SET_DECL_EXPLICIT_INSTANTIATION(NODE) (DECL_USE_TEMPLATE (NODE) = 3)
2007#define CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2008  (CLASSTYPE_USE_TEMPLATE(NODE) == 3)
2009#define SET_CLASSTYPE_EXPLICIT_INSTANTIATION(NODE) \
2010  (CLASSTYPE_USE_TEMPLATE(NODE) = 3)
2011
2012/* Non-zero if DECL is a friend function which is an instantiation
2013   from the point of view of the compiler, but not from the point of
2014   view of the language.  For example given:
2015      template <class T> struct S { friend void f(T) {}; };
2016   the declaration of `void f(int)' generated when S<int> is
2017   instantiated will not be a DECL_TEMPLATE_INSTANTIATION, but will be
2018   a DECL_FRIEND_PSUEDO_TEMPLATE_INSTANTIATION.  */
2019#define DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION(DECL) \
2020  (DECL_TEMPLATE_INFO (DECL) && !DECL_USE_TEMPLATE (DECL))
2021
2022/* Non-zero if TYPE is a partial instantiation of a template class,
2023   i.e., an instantiation whose instantiation arguments involve
2024   template types.  */
2025#define PARTIAL_INSTANTIATION_P(TYPE) \
2026  (TYPE_LANG_SPECIFIC (TYPE)->type_flags.is_partial_instantiation)
2027
2028/* Non-zero iff we are currently processing a declaration for an
2029   entity with its own template parameter list, and which is not a
2030   full specialization.  */
2031#define PROCESSING_REAL_TEMPLATE_DECL_P() \
2032  (processing_template_decl > template_class_depth (current_class_type))
2033
2034/* This function may be a guiding decl for a template.  */
2035#define DECL_MAYBE_TEMPLATE(NODE) DECL_LANG_FLAG_4 (NODE)
2036
2037/* Nonzero if this VAR_DECL or FUNCTION_DECL has already been
2038   instantiated, i.e. its definition has been generated from the
2039   pattern given in the the template.  */
2040#define DECL_TEMPLATE_INSTANTIATED(NODE) DECL_LANG_FLAG_1(NODE)
2041
2042/* We know what we're doing with this decl now.  */
2043#define DECL_INTERFACE_KNOWN(NODE) DECL_LANG_FLAG_5 (NODE)
2044
2045/* This function was declared inline.  This flag controls the linkage
2046   semantics of 'inline'; whether or not the function is inlined is
2047   controlled by DECL_INLINE.  */
2048#define DECL_THIS_INLINE(NODE) \
2049  (DECL_LANG_SPECIFIC (NODE)->decl_flags.declared_inline)
2050
2051/* DECL_EXTERNAL must be set on a decl until the decl is actually emitted,
2052   so that assemble_external will work properly.  So we have this flag to
2053   tell us whether the decl is really not external.  */
2054#define DECL_NOT_REALLY_EXTERN(NODE) \
2055  (DECL_LANG_SPECIFIC (NODE)->decl_flags.not_really_extern)
2056
2057#define DECL_REALLY_EXTERN(NODE) \
2058  (DECL_EXTERNAL (NODE) && ! DECL_NOT_REALLY_EXTERN (NODE))
2059
2060#define THUNK_DELTA(DECL) ((DECL)->decl.frame_size.i)
2061
2062/* ...and for unexpanded-parameterized-type nodes.  */
2063#define UPT_TEMPLATE(NODE)      TREE_PURPOSE(TYPE_VALUES(NODE))
2064#define UPT_PARMS(NODE)         TREE_VALUE(TYPE_VALUES(NODE))
2065
2066/* An un-parsed default argument looks like an identifier.  */
2067#define DEFARG_NODE_CHECK(t)	TREE_CHECK(t, DEFAULT_ARG)
2068#define DEFARG_LENGTH(NODE)	(DEFARG_NODE_CHECK(NODE)->identifier.length)
2069#define DEFARG_POINTER(NODE)	(DEFARG_NODE_CHECK(NODE)->identifier.pointer)
2070
2071#define builtin_function(NAME, TYPE, CODE, LIBNAME) \
2072  define_function (NAME, TYPE, CODE, (void (*) PROTO((tree)))pushdecl, LIBNAME)
2073
2074/* These macros provide convenient access to the various _STMT nodes
2075   created when parsing template declarations.  */
2076#define IF_COND(NODE)           TREE_OPERAND (NODE, 0)
2077#define THEN_CLAUSE(NODE)       TREE_OPERAND (NODE, 1)
2078#define ELSE_CLAUSE(NODE)       TREE_OPERAND (NODE, 2)
2079#define WHILE_COND(NODE)        TREE_OPERAND (NODE, 0)
2080#define WHILE_BODY(NODE)        TREE_OPERAND (NODE, 1)
2081#define DO_COND(NODE)           TREE_OPERAND (NODE, 0)
2082#define DO_BODY(NODE)           TREE_OPERAND (NODE, 1)
2083#define RETURN_EXPR(NODE)       TREE_OPERAND (NODE, 0)
2084#define EXPR_STMT_EXPR(NODE)    TREE_OPERAND (NODE, 0)
2085#define FOR_INIT_STMT(NODE)     TREE_OPERAND (NODE, 0)
2086#define FOR_COND(NODE)          TREE_OPERAND (NODE, 1)
2087#define FOR_EXPR(NODE)          TREE_OPERAND (NODE, 2)
2088#define FOR_BODY(NODE)          TREE_OPERAND (NODE, 3)
2089#define SWITCH_COND(NODE)       TREE_OPERAND (NODE, 0)
2090#define SWITCH_BODY(NODE)       TREE_OPERAND (NODE, 1)
2091#define CASE_LOW(NODE)          TREE_OPERAND (NODE, 0)
2092#define CASE_HIGH(NODE)         TREE_OPERAND (NODE, 1)
2093#define GOTO_DESTINATION(NODE)  TREE_OPERAND (NODE, 0)
2094#define TRY_STMTS(NODE)         TREE_OPERAND (NODE, 0)
2095#define TRY_HANDLERS(NODE)      TREE_OPERAND (NODE, 1)
2096#define HANDLER_PARMS(NODE)     TREE_OPERAND (NODE, 0)
2097#define HANDLER_BODY(NODE)      TREE_OPERAND (NODE, 1)
2098#define COMPOUND_BODY(NODE)     TREE_OPERAND (NODE, 0)
2099#define ASM_CV_QUAL(NODE)       TREE_OPERAND (NODE, 0)
2100#define ASM_STRING(NODE)        TREE_OPERAND (NODE, 1)
2101#define ASM_OUTPUTS(NODE)       TREE_OPERAND (NODE, 2)
2102#define ASM_INPUTS(NODE)        TREE_OPERAND (NODE, 3)
2103#define ASM_CLOBBERS(NODE)      TREE_OPERAND (NODE, 4)
2104
2105/* An enumeration of the kind of tags that C++ accepts.  */
2106enum tag_types { record_type, class_type, union_type, enum_type,
2107		   signature_type };
2108
2109/* Zero means prototype weakly, as in ANSI C (no args means nothing).
2110   Each language context defines how this variable should be set.  */
2111extern int strict_prototype;
2112extern int strict_prototypes_lang_c, strict_prototypes_lang_cplusplus;
2113
2114/* Non-zero means that if a label exists, and no other identifier
2115   applies, use the value of the label.  */
2116extern int flag_labels_ok;
2117
2118/* Non-zero means to collect statistics which might be expensive
2119   and to print them when we are done.  */
2120extern int flag_detailed_statistics;
2121
2122/* Non-zero means warn in function declared in derived class has the
2123   same name as a virtual in the base class, but fails to match the
2124   type signature of any virtual function in the base class.  */
2125extern int warn_overloaded_virtual;
2126
2127/* Nonzero means warn about use of multicharacter literals.  */
2128extern int warn_multichar;
2129
2130/* Non-zero means warn if a non-templatized friend function is
2131   declared in a templatized class. This behavior is warned about with
2132   flag_guiding_decls in do_friend. */
2133extern int warn_nontemplate_friend;
2134
2135/* in c-common.c */
2136extern void declare_function_name               PROTO((void));
2137extern void decl_attributes                     PROTO((tree, tree, tree));
2138extern void init_function_format_info		PROTO((void));
2139extern void record_function_format		PROTO((tree, tree, int, int, int));
2140extern void check_function_format		PROTO((tree, tree, tree));
2141/* Print an error message for invalid operands to arith operation CODE.
2142   NOP_EXPR is used as a special case (see truthvalue_conversion).  */
2143extern void binary_op_error                     PROTO((enum tree_code));
2144extern tree cp_build_qualified_type             PROTO((tree, int));
2145extern tree canonical_type_variant              PROTO((tree));
2146extern void c_expand_expr_stmt                  PROTO((tree));
2147/* Validate the expression after `case' and apply default promotions.  */
2148extern tree check_case_value                    PROTO((tree));
2149/* Concatenate a list of STRING_CST nodes into one STRING_CST.  */
2150extern tree combine_strings                     PROTO((tree));
2151extern void constant_expression_warning         PROTO((tree));
2152extern tree convert_and_check			PROTO((tree, tree));
2153extern void overflow_warning			PROTO((tree));
2154extern void unsigned_conversion_warning		PROTO((tree, tree));
2155extern void c_apply_type_quals_to_decl          PROTO((int, tree));
2156
2157/* Read the rest of the current #-directive line.  */
2158#if USE_CPPLIB
2159extern char *get_directive_line                 PROTO((void));
2160#define GET_DIRECTIVE_LINE() get_directive_line ()
2161#else
2162extern char *get_directive_line                 PROTO((FILE *));
2163#define GET_DIRECTIVE_LINE() get_directive_line (finput)
2164#endif
2165/* Subroutine of build_binary_op, used for comparison operations.
2166   See if the operands have both been converted from subword integer types
2167   and, if so, perhaps change them both back to their original type.  */
2168extern tree shorten_compare                     PROTO((tree *, tree *, tree *, enum tree_code *));
2169/* Prepare expr to be an argument of a TRUTH_NOT_EXPR,
2170   or validate its data type for an `if' or `while' statement or ?..: exp.  */
2171extern tree truthvalue_conversion               PROTO((tree));
2172extern tree type_for_mode                       PROTO((enum machine_mode, int));
2173extern tree type_for_size                       PROTO((unsigned, int));
2174extern int c_get_alias_set                      PROTO((tree));
2175
2176/* in decl{2}.c */
2177extern tree void_list_node;
2178extern tree void_zero_node;
2179extern tree default_function_type;
2180extern tree vtable_entry_type;
2181extern tree sigtable_entry_type;
2182extern tree __t_desc_type_node;
2183#if 0
2184extern tree __tp_desc_type_node;
2185#endif
2186extern tree __access_mode_type_node;
2187extern tree __bltn_desc_type_node, __user_desc_type_node;
2188extern tree __class_desc_type_node, __attr_desc_type_node;
2189extern tree __ptr_desc_type_node, __func_desc_type_node;
2190extern tree __ptmf_desc_type_node, __ptmd_desc_type_node;
2191extern tree type_info_type_node;
2192extern tree class_star_type_node;
2193extern tree this_identifier;
2194extern tree ctor_identifier, dtor_identifier;
2195extern tree pfn_identifier;
2196extern tree index_identifier;
2197extern tree delta_identifier;
2198extern tree delta2_identifier;
2199extern tree pfn_or_delta2_identifier;
2200extern tree tag_identifier;
2201extern tree vt_off_identifier;
2202extern tree in_charge_identifier;
2203
2204/* A node that is a list (length 1) of error_mark_nodes.  */
2205extern tree error_mark_list;
2206
2207extern tree ptr_type_node;
2208extern tree class_type_node, record_type_node, union_type_node, enum_type_node;
2209extern tree unknown_type_node;
2210extern tree opaque_type_node, signature_type_node;
2211
2212extern tree vlist_identifier, vlist_type_node, vlist_zero_node;
2213
2214/* Node for "pointer to (virtual) function".
2215   This may be distinct from ptr_type_node so gdb can distinguish them.  */
2216#define vfunc_ptr_type_node \
2217  (flag_vtable_thunks ? vtable_entry_type : ptr_type_node)
2218
2219/* The type of a vtbl, i.e., an array of vtable entries.  */
2220extern tree vtbl_type_node;
2221/* The type of a class vtbl pointer, i.e., a pointer to a vtable entry.  */
2222extern tree vtbl_ptr_type_node;
2223extern tree delta_type_node;
2224extern tree std_node;
2225
2226extern tree long_long_integer_type_node, long_long_unsigned_type_node;
2227/* For building calls to `delete'.  */
2228extern tree integer_two_node, integer_three_node;
2229extern tree boolean_type_node, boolean_true_node, boolean_false_node;
2230
2231extern tree null_node;
2232
2233extern tree anonymous_namespace_name;
2234
2235/* The FUNCTION_DECL for the default `::operator delete'.  */
2236
2237extern tree global_delete_fndecl;
2238
2239/* in pt.c  */
2240
2241/* These values are used for the `STRICT' parameter to type_unfication and
2242   fn_type_unification.  Their meanings are described with the
2243   documentation for fn_type_unification.  */
2244
2245typedef enum unification_kind_t {
2246  DEDUCE_CALL,
2247  DEDUCE_CONV,
2248  DEDUCE_EXACT
2249} unification_kind_t;
2250
2251extern tree current_template_parms;
2252extern HOST_WIDE_INT processing_template_decl;
2253extern tree last_tree;
2254
2255/* The template currently being instantiated, and where the instantiation
2256   was triggered.  */
2257struct tinst_level
2258{
2259  tree decl;
2260  int line;
2261  char *file;
2262  struct tinst_level *next;
2263};
2264
2265extern int minimal_parse_mode;
2266
2267extern void maybe_print_template_context	PROTO ((void));
2268
2269/* in class.c */
2270
2271/* When parsing a class definition, the access specifier most recently
2272   given by the user, or, if no access specifier was given, the
2273   default value appropriate for the kind of class (i.e., struct,
2274   class, or union).  */
2275extern tree current_access_specifier;
2276
2277extern tree current_class_name;
2278extern tree current_class_type;
2279extern tree current_class_ptr;
2280extern tree previous_class_type;
2281extern tree current_class_ref;
2282extern int current_class_depth;
2283
2284extern tree current_lang_name;
2285extern tree lang_name_cplusplus, lang_name_c, lang_name_java;
2286
2287/* The low-water mark on the class-cache obstack.  */
2288extern char *class_cache_firstobj;
2289
2290/* Points to the name of that function. May not be the DECL_NAME
2291   of CURRENT_FUNCTION_DECL due to overloading */
2292extern tree original_function_name;
2293
2294/* in init.c  */
2295extern tree global_base_init_list;
2296extern tree current_base_init_list, current_member_init_list;
2297
2298extern int current_function_just_assigned_this;
2299extern int current_function_parms_stored;
2300
2301/* Here's where we control how name mangling takes place.  */
2302
2303#define OPERATOR_ASSIGN_FORMAT "__a%s"
2304#define OPERATOR_FORMAT "__%s"
2305#define OPERATOR_TYPENAME_FORMAT "__op"
2306
2307/* Cannot use '$' up front, because this confuses gdb
2308   (names beginning with '$' are gdb-local identifiers).
2309
2310   Note that all forms in which the '$' is significant are long enough
2311   for direct indexing (meaning that if we know there is a '$'
2312   at a particular location, we can index into the string at
2313   any other location that provides distinguishing characters).  */
2314
2315/* Define NO_DOLLAR_IN_LABEL in your favorite tm file if your assembler
2316   doesn't allow '$' in symbol names.  */
2317#ifndef NO_DOLLAR_IN_LABEL
2318
2319#define JOINER '$'
2320
2321#define VPTR_NAME "$v"
2322#define THROW_NAME "$eh_throw"
2323#define DESTRUCTOR_DECL_PREFIX "_$_"
2324#define AUTO_VTABLE_NAME "__vtbl$me__"
2325#define AUTO_TEMP_NAME "_$tmp_"
2326#define AUTO_TEMP_FORMAT "_$tmp_%d"
2327#define VTABLE_BASE "$vb"
2328#define VTABLE_NAME_FORMAT (flag_vtable_thunks ? "__vt_%s" : "_vt$%s")
2329#define VCTABLE_NAME "__vc$"
2330#define VLIST_NAME_FORMAT "__vl$%s"
2331#define VFIELD_BASE "$vf"
2332#define VFIELD_NAME "_vptr$"
2333#define VFIELD_NAME_FORMAT "_vptr$%s"
2334#define VBASE_NAME "_vb$"
2335#define VBASE_NAME_FORMAT "_vb$%s"
2336#define STATIC_NAME_FORMAT "_%s$%s"
2337#define ANON_AGGRNAME_FORMAT "$_%d"
2338
2339#else /* NO_DOLLAR_IN_LABEL */
2340
2341#ifndef NO_DOT_IN_LABEL
2342
2343#define JOINER '.'
2344
2345#define VPTR_NAME ".v"
2346#define THROW_NAME ".eh_throw"
2347#define DESTRUCTOR_DECL_PREFIX "_._"
2348#define AUTO_VTABLE_NAME "__vtbl.me__"
2349#define AUTO_TEMP_NAME "_.tmp_"
2350#define AUTO_TEMP_FORMAT "_.tmp_%d"
2351#define VTABLE_BASE ".vb"
2352#define VTABLE_NAME_FORMAT (flag_vtable_thunks ? "__vt_%s" : "_vt.%s")
2353#define VCTABLE_NAME  "__vc."
2354#define VLIST_NAME_FORMAT "__vl.%s"
2355#define VFIELD_BASE ".vf"
2356#define VFIELD_NAME "_vptr."
2357#define VFIELD_NAME_FORMAT "_vptr.%s"
2358#define VBASE_NAME "_vb."
2359#define VBASE_NAME_FORMAT "_vb.%s"
2360#define STATIC_NAME_FORMAT "_%s.%s"
2361
2362#define ANON_AGGRNAME_FORMAT "._%d"
2363
2364#else /* NO_DOT_IN_LABEL */
2365
2366#define VPTR_NAME "__vptr"
2367#define VPTR_NAME_P(ID_NODE) \
2368  (!strncmp (IDENTIFIER_POINTER (ID_NODE), VPTR_NAME, sizeof (VPTR_NAME) - 1))
2369#define THROW_NAME "__eh_throw"
2370#define DESTRUCTOR_DECL_PREFIX "__destr_"
2371#define DESTRUCTOR_NAME_P(ID_NODE) \
2372  (!strncmp (IDENTIFIER_POINTER (ID_NODE), DESTRUCTOR_DECL_PREFIX, \
2373	     sizeof (DESTRUCTOR_DECL_PREFIX) - 1))
2374#define IN_CHARGE_NAME "__in_chrg"
2375#define AUTO_VTABLE_NAME "__vtbl_me__"
2376#define AUTO_TEMP_NAME "__tmp_"
2377#define TEMP_NAME_P(ID_NODE) \
2378  (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, \
2379	     sizeof (AUTO_TEMP_NAME) - 1))
2380#define AUTO_TEMP_FORMAT "__tmp_%d"
2381#define VTABLE_BASE "__vtb"
2382#define VTABLE_NAME "__vt_"
2383#define VTABLE_NAME_FORMAT (flag_vtable_thunks ? "__vt_%s" : "_vt_%s")
2384#define VTABLE_NAME_P(ID_NODE) \
2385  (!strncmp (IDENTIFIER_POINTER (ID_NODE), VTABLE_NAME, \
2386	     sizeof (VTABLE_NAME) - 1))
2387#define VCTABLE_NAME  "__vc_"
2388#define VLIST_NAME_FORMAT "__vl_%s"
2389#define VFIELD_BASE "__vfb"
2390#define VFIELD_NAME "__vptr_"
2391#define VFIELD_NAME_P(ID_NODE) \
2392  (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, \
2393	    sizeof (VFIELD_NAME) - 1))
2394#define VFIELD_NAME_FORMAT "_vptr_%s"
2395#define VBASE_NAME "__vb_"
2396#define VBASE_NAME_P(ID_NODE) \
2397  (!strncmp (IDENTIFIER_POINTER (ID_NODE), VBASE_NAME, \
2398	     sizeof (VBASE_NAME) - 1))
2399#define VBASE_NAME_FORMAT "__vb_%s"
2400#define STATIC_NAME_FORMAT "__static_%s_%s"
2401
2402#define ANON_AGGRNAME_PREFIX "__anon_"
2403#define ANON_AGGRNAME_P(ID_NODE) \
2404  (!strncmp (IDENTIFIER_POINTER (ID_NODE), ANON_AGGRNAME_PREFIX, \
2405	     sizeof (ANON_AGGRNAME_PREFIX) - 1))
2406#define ANON_AGGRNAME_FORMAT "__anon_%d"
2407#define ANON_PARMNAME_FORMAT "__%d"
2408#define ANON_PARMNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == '_' \
2409				  && IDENTIFIER_POINTER (ID_NODE)[1] == '_' \
2410				  && IDENTIFIER_POINTER (ID_NODE)[2] <= '9')
2411
2412#endif	/* NO_DOT_IN_LABEL */
2413#endif	/* NO_DOLLAR_IN_LABEL */
2414
2415#define THIS_NAME "this"
2416#define DESTRUCTOR_NAME_FORMAT "~%s"
2417#define FILE_FUNCTION_PREFIX_LEN 9
2418#define CTOR_NAME "__ct"
2419#define DTOR_NAME "__dt"
2420
2421#define IN_CHARGE_NAME "__in_chrg"
2422#define VLIST_NAME "__vlist"
2423#define VLIST1_NAME "__vlist1"
2424#define VLIST_TYPE_NAME "6_Vlist"
2425
2426#define VTBL_PTR_TYPE		"__vtbl_ptr_type"
2427#define VTABLE_DELTA_NAME	"__delta"
2428#define VTABLE_INDEX_NAME	"__index"
2429#define VTABLE_PFN_NAME		"__pfn"
2430#define VTABLE_DELTA2_NAME	"__delta2"
2431
2432#define SIGNATURE_FIELD_NAME	"__s_"
2433#define SIGNATURE_FIELD_NAME_FORMAT "__s_%s"
2434#define SIGNATURE_OPTR_NAME	"__optr"
2435#define SIGNATURE_SPTR_NAME	"__sptr"
2436#define SIGNATURE_POINTER_NAME	"__sp_"
2437#define SIGNATURE_POINTER_NAME_FORMAT "__%s%s%ssp_%s"
2438#define SIGNATURE_REFERENCE_NAME "__sr_"
2439#define SIGNATURE_REFERENCE_NAME_FORMAT "__%s%s%ssr_%s"
2440
2441#define SIGTABLE_PTR_TYPE	"__sigtbl_ptr_type"
2442#define SIGTABLE_NAME_FORMAT	"__st_%s_%s"
2443#define SIGTABLE_NAME_FORMAT_LONG "__st_%s_%s_%d"
2444#define SIGTABLE_TAG_NAME	"__tag"
2445#define SIGTABLE_VB_OFF_NAME	"__vb_off"
2446#define SIGTABLE_VT_OFF_NAME	"__vt_off"
2447#define EXCEPTION_CLEANUP_NAME 	"exception cleanup"
2448
2449#define THIS_NAME_P(ID_NODE) (strcmp(IDENTIFIER_POINTER (ID_NODE), "this") == 0)
2450
2451#if !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL)
2452
2453#define VPTR_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
2454			      && IDENTIFIER_POINTER (ID_NODE)[1] == 'v')
2455#define DESTRUCTOR_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == JOINER \
2456                                    && IDENTIFIER_POINTER (ID_NODE)[2] == '_')
2457
2458#define VTABLE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
2459  && IDENTIFIER_POINTER (ID_NODE)[2] == 't' \
2460  && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
2461
2462#define VBASE_NAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[1] == 'v' \
2463  && IDENTIFIER_POINTER (ID_NODE)[2] == 'b' \
2464  && IDENTIFIER_POINTER (ID_NODE)[3] == JOINER)
2465
2466#define TEMP_NAME_P(ID_NODE) (!strncmp (IDENTIFIER_POINTER (ID_NODE), AUTO_TEMP_NAME, sizeof (AUTO_TEMP_NAME)-1))
2467#define VFIELD_NAME_P(ID_NODE) (!strncmp (IDENTIFIER_POINTER (ID_NODE), VFIELD_NAME, sizeof(VFIELD_NAME)-1))
2468
2469/* For anonymous aggregate types, we need some sort of name to
2470   hold on to.  In practice, this should not appear, but it should
2471   not be harmful if it does.  */
2472#define ANON_AGGRNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == JOINER \
2473				  && IDENTIFIER_POINTER (ID_NODE)[1] == '_')
2474#define ANON_PARMNAME_FORMAT "_%d"
2475#define ANON_PARMNAME_P(ID_NODE) (IDENTIFIER_POINTER (ID_NODE)[0] == '_' \
2476				  && IDENTIFIER_POINTER (ID_NODE)[1] <= '9')
2477#endif /* !defined(NO_DOLLAR_IN_LABEL) || !defined(NO_DOT_IN_LABEL) */
2478
2479/* Store the vbase pointer field name for type TYPE into pointer BUF.  */
2480#define FORMAT_VBASE_NAME(BUF,TYPE) do { 				\
2481  char *wbuf = (char *) alloca (TYPE_ASSEMBLER_NAME_LENGTH (TYPE)	\
2482			 + sizeof (VBASE_NAME) + 1);			\
2483  sprintf (wbuf, VBASE_NAME_FORMAT, TYPE_ASSEMBLER_NAME_STRING (TYPE));	\
2484  (BUF) = wbuf;								\
2485} while (0)
2486
2487/* Returns non-zero iff ID_NODE is an IDENTIFIER_NODE whose name is
2488   `main'.  */
2489#define MAIN_NAME_P(ID_NODE) \
2490   (strcmp (IDENTIFIER_POINTER (ID_NODE), "main") == 0)
2491
2492/* Returns non-zero iff NODE is a declaration for the global function
2493   `main'.  */
2494#define DECL_MAIN_P(NODE)				\
2495   (TREE_CODE (NODE) == FUNCTION_DECL			\
2496    && DECL_LANGUAGE (NODE) == lang_c	 		\
2497    && DECL_NAME (NODE) != NULL_TREE			\
2498    && MAIN_NAME_P (DECL_NAME (NODE)))
2499
2500
2501/* Define the sets of attributes that member functions and baseclasses
2502   can have.  These are sensible combinations of {public,private,protected}
2503   cross {virtual,non-virtual}.  */
2504
2505/* in class.c.  */
2506extern tree access_default_node; /* 0 */
2507extern tree access_public_node; /* 1 */
2508extern tree access_protected_node; /* 2 */
2509extern tree access_private_node; /* 3 */
2510extern tree access_default_virtual_node; /* 4 */
2511extern tree access_public_virtual_node; /* 5 */
2512extern tree access_protected_virtual_node; /* 6 */
2513extern tree access_private_virtual_node; /* 7 */
2514
2515/* Things for handling inline functions.  */
2516
2517struct pending_inline
2518{
2519  struct pending_inline *next;	/* pointer to next in chain */
2520  int lineno;			/* line number we got the text from */
2521  char *filename;		/* name of file we were processing */
2522  tree fndecl;			/* FUNCTION_DECL that brought us here */
2523  int token;			/* token we were scanning */
2524  int token_value;		/* value of token we were scanning (YYSTYPE) */
2525
2526  char *buf;			/* pointer to character stream */
2527  int len;			/* length of stream */
2528  unsigned int can_free : 1;	/* free this after we're done with it? */
2529  unsigned int deja_vu : 1;	/* set iff we don't want to see it again.  */
2530  unsigned int interface : 2;	/* 0=interface 1=unknown 2=implementation */
2531};
2532
2533/* in method.c */
2534extern struct pending_inline *pending_inlines;
2535
2536/* Positive values means that we cannot make optimizing assumptions about
2537   `this'.  Negative values means we know `this' to be of static type.  */
2538
2539extern int flag_this_is_variable;
2540
2541/* Nonzero means generate 'rtti' that give run-time type information.  */
2542
2543extern int flag_rtti;
2544
2545/* Nonzero means do emit exported implementations of functions even if
2546   they can be inlined.  */
2547
2548extern int flag_implement_inlines;
2549
2550/* Nonzero means templates obey #pragma interface and implementation.  */
2551
2552extern int flag_external_templates;
2553
2554/* Nonzero means templates are emitted where they are instantiated.  */
2555
2556extern int flag_alt_external_templates;
2557
2558/* Nonzero means implicit template instantiations are emitted.  */
2559
2560extern int flag_implicit_templates;
2561
2562/* Nonzero if we want to emit defined symbols with common-like linkage as
2563   weak symbols where possible, in order to conform to C++ semantics.
2564   Otherwise, emit them as local symbols.  */
2565
2566extern int flag_weak;
2567
2568/* Nonzero to enable experimental ABI changes.  */
2569
2570extern int flag_new_abi;
2571
2572/* Nonzero to not ignore namespace std. */
2573
2574extern int flag_honor_std;
2575
2576/* Nonzero if we're done parsing and into end-of-file activities.  */
2577
2578extern int at_eof;
2579
2580enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
2581
2582/* The following two can be derived from the previous one */
2583extern tree current_class_name;	/* IDENTIFIER_NODE: name of current class */
2584
2585/* Some macros for char-based bitfields.  */
2586#define B_SET(a,x) (a[x>>3] |= (1 << (x&7)))
2587#define B_CLR(a,x) (a[x>>3] &= ~(1 << (x&7)))
2588#define B_TST(a,x) (a[x>>3] & (1 << (x&7)))
2589
2590/* These are uses as bits in flags passed to build_method_call
2591   to control its error reporting behavior.
2592
2593   LOOKUP_PROTECT means flag access violations.
2594   LOOKUP_COMPLAIN mean complain if no suitable member function
2595     matching the arguments is found.
2596   LOOKUP_NORMAL is just a combination of these two.
2597   LOOKUP_NONVIRTUAL means make a direct call to the member function found
2598   LOOKUP_GLOBAL means search through the space of overloaded functions,
2599     as well as the space of member functions.
2600   LOOKUP_HAS_IN_CHARGE means that the "in charge" variable is already
2601     in the parameter list.
2602   LOOKUP_HAS_VLIST means that the "vlist" variable is already in
2603     the parameter list.
2604   LOOKUP_ONLYCONVERTING means that non-conversion constructors are not tried.
2605   DIRECT_BIND means that if a temporary is created, it should be created so
2606     that it lives as long as the current variable bindings; otherwise it
2607     only lives until the end of the complete-expression.
2608   LOOKUP_SPECULATIVELY means return NULL_TREE if we cannot find what we are
2609     after.  Note, LOOKUP_COMPLAIN is checked and error messages printed
2610     before LOOKUP_SPECULATIVELY is checked.
2611   LOOKUP_NO_CONVERSION means that user-defined conversions are not
2612     permitted.  Built-in conversions are permitted.
2613   LOOKUP_DESTRUCTOR means explicit call to destructor.
2614   LOOKUP_NO_TEMP_BIND means temporaries will not be bound to references.
2615
2616   These are used in global lookup to support elaborated types and
2617   qualifiers.
2618
2619   LOOKUP_PREFER_TYPES means not to accept objects, and possibly namespaces.
2620   LOOKUP_PREFER_NAMESPACES means not to accept objects, and possibly types.
2621   LOOKUP_PREFER_BOTH means class-or-namespace-name.
2622   LOOKUP_TEMPLATES_EXPECTED means that class templates also count
2623     as types.  */
2624
2625#define LOOKUP_PROTECT (1)
2626#define LOOKUP_COMPLAIN (2)
2627#define LOOKUP_NORMAL (3)
2628/* #define LOOKUP_UNUSED (4) */
2629#define LOOKUP_NONVIRTUAL (8)
2630#define LOOKUP_GLOBAL (16)
2631#define LOOKUP_HAS_IN_CHARGE (32)
2632#define LOOKUP_SPECULATIVELY (64)
2633#define LOOKUP_ONLYCONVERTING (128)
2634#define DIRECT_BIND (256)
2635#define LOOKUP_NO_CONVERSION (512)
2636#define LOOKUP_DESTRUCTOR (512)
2637#define LOOKUP_NO_TEMP_BIND (1024)
2638#define LOOKUP_PREFER_TYPES (2048)
2639#define LOOKUP_PREFER_NAMESPACES (4096)
2640#define LOOKUP_PREFER_BOTH (6144)
2641#define LOOKUP_TEMPLATES_EXPECTED (8192)
2642#define LOOKUP_HAS_VLIST (16384)
2643
2644#define LOOKUP_NAMESPACES_ONLY(f)  \
2645  (((f) & LOOKUP_PREFER_NAMESPACES) && !((f) & LOOKUP_PREFER_TYPES))
2646#define LOOKUP_TYPES_ONLY(f)  \
2647  (!((f) & LOOKUP_PREFER_NAMESPACES) && ((f) & LOOKUP_PREFER_TYPES))
2648#define LOOKUP_QUALIFIERS_ONLY(f)     ((f) & LOOKUP_PREFER_BOTH)
2649
2650
2651/* These flags are used by the conversion code.
2652   CONV_IMPLICIT   :  Perform implicit conversions (standard and user-defined).
2653   CONV_STATIC     :  Perform the explicit conversions for static_cast.
2654   CONV_CONST      :  Perform the explicit conversions for const_cast.
2655   CONV_REINTERPRET:  Perform the explicit conversions for reinterpret_cast.
2656   CONV_PRIVATE    :  Perform upcasts to private bases.
2657   CONV_FORCE_TEMP :  Require a new temporary when converting to the same
2658   		      aggregate type.  */
2659
2660#define CONV_IMPLICIT    1
2661#define CONV_STATIC      2
2662#define CONV_CONST       4
2663#define CONV_REINTERPRET 8
2664#define CONV_PRIVATE	 16
2665/* #define CONV_NONCONVERTING 32 */
2666#define CONV_FORCE_TEMP  64
2667#define CONV_STATIC_CAST (CONV_IMPLICIT | CONV_STATIC | CONV_FORCE_TEMP)
2668#define CONV_OLD_CONVERT (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
2669			  | CONV_REINTERPRET)
2670#define CONV_C_CAST      (CONV_IMPLICIT | CONV_STATIC | CONV_CONST \
2671			  | CONV_REINTERPRET | CONV_PRIVATE | CONV_FORCE_TEMP)
2672
2673/* Used by build_expr_type_conversion to indicate which types are
2674   acceptable as arguments to the expression under consideration.  */
2675
2676#define WANT_INT	1 /* integer types, including bool */
2677#define WANT_FLOAT	2 /* floating point types */
2678#define WANT_ENUM	4 /* enumerated types */
2679#define WANT_POINTER	8 /* pointer types */
2680#define WANT_NULL      16 /* null pointer constant */
2681#define WANT_ARITH	(WANT_INT | WANT_FLOAT)
2682
2683/* Used with comptypes, and related functions, to guide type
2684   comparison.  */
2685
2686#define COMPARE_STRICT        0 /* Just check if the types are the
2687				   same.  */
2688#define COMPARE_BASE          1 /* Check to see if the second type is
2689				   derived from the first, or if both
2690				   are pointers (or references) and
2691				   the types pointed to by the second
2692				   type is derived from the pointed to
2693				   by the first.  */
2694#define COMPARE_RELAXED       2 /* Like COMPARE_DERIVED, but in
2695				   reverse.  Also treat enmeration
2696				   types as the same as integer types
2697				   of the same width.  */
2698#define COMPARE_REDECLARATION 4 /* The comparsion is being done when
2699				   another declaration of an existing
2700				   entity is seen.  */
2701#define COMPARE_NO_ATTRIBUTES 8 /* The comparison should ignore
2702				   extra-linguistic type attributes.  */
2703
2704/* Used with push_overloaded_decl.  */
2705#define PUSH_GLOBAL          0  /* Push the DECL into namespace scope,
2706				   regardless of the current scope.  */
2707#define PUSH_LOCAL           1  /* Push the DECL into the current
2708				   scope.  */
2709#define PUSH_USING           2  /* We are pushing this DECL as the
2710				   result of a using declaration.  */
2711
2712/* Returns nonzero iff TYPE1 and TYPE2 are the same type, in the usual
2713   sense of `same'.  */
2714#define same_type_p(type1, type2) \
2715  comptypes ((type1), (type2), COMPARE_STRICT)
2716
2717/* Returns nonzero iff TYPE1 and TYPE2 are the same type, or if TYPE2
2718   is derived from TYPE1, or if TYPE2 is a pointer (reference) to a
2719   class derived from the type pointed to (referred to) by TYPE1.  */
2720#define same_or_base_type_p(type1, type2) \
2721  comptypes ((type1), (type2), COMPARE_BASE)
2722
2723/* These macros are used to access a TEMPLATE_PARM_INDEX.  */
2724#define TEMPLATE_PARM_IDX(NODE) (((template_parm_index*) NODE)->index)
2725#define TEMPLATE_PARM_LEVEL(NODE) (((template_parm_index*) NODE)->level)
2726#define TEMPLATE_PARM_DESCENDANTS(NODE) (TREE_CHAIN (NODE))
2727#define TEMPLATE_PARM_ORIG_LEVEL(NODE) (((template_parm_index*) NODE)->orig_level)
2728#define TEMPLATE_PARM_DECL(NODE) (((template_parm_index*) NODE)->decl)
2729
2730/* These macros are for accessing the fields of TEMPLATE_TYPE_PARM
2731   and TEMPLATE_TEMPLATE_PARM nodes.  */
2732#define TEMPLATE_TYPE_PARM_INDEX(NODE) (TYPE_FIELDS (NODE))
2733#define TEMPLATE_TYPE_IDX(NODE) \
2734  (TEMPLATE_PARM_IDX (TEMPLATE_TYPE_PARM_INDEX (NODE)))
2735#define TEMPLATE_TYPE_LEVEL(NODE) \
2736  (TEMPLATE_PARM_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
2737#define TEMPLATE_TYPE_ORIG_LEVEL(NODE) \
2738  (TEMPLATE_PARM_ORIG_LEVEL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
2739#define TEMPLATE_TYPE_DECL(NODE) \
2740  (TEMPLATE_PARM_DECL (TEMPLATE_TYPE_PARM_INDEX (NODE)))
2741
2742/* in lex.c  */
2743/* Indexed by TREE_CODE, these tables give C-looking names to
2744   operators represented by TREE_CODES.  For example,
2745   opname_tab[(int) MINUS_EXPR] == "-".  */
2746extern char **opname_tab, **assignop_tab;
2747
2748/* in call.c */
2749extern int check_dtor_name			PROTO((tree, tree));
2750extern int get_arglist_len_in_bytes		PROTO((tree));
2751
2752extern tree build_vfield_ref			PROTO((tree, tree));
2753extern tree resolve_scope_to_name		PROTO((tree, tree));
2754extern tree build_scoped_method_call		PROTO((tree, tree, tree, tree));
2755extern tree build_addr_func			PROTO((tree));
2756extern tree build_call				PROTO((tree, tree, tree));
2757extern tree build_method_call			PROTO((tree, tree, tree, tree, int));
2758extern int null_ptr_cst_p			PROTO((tree));
2759extern tree type_decays_to			PROTO((tree));
2760extern tree build_user_type_conversion		PROTO((tree, tree, int));
2761extern tree build_new_function_call		PROTO((tree, tree));
2762extern tree build_new_op			PROTO((enum tree_code, int, tree, tree, tree));
2763extern tree build_op_new_call			PROTO((enum tree_code, tree, tree, int));
2764extern tree build_op_delete_call		PROTO((enum tree_code, tree, tree, int, tree));
2765extern int can_convert				PROTO((tree, tree));
2766extern int can_convert_arg			PROTO((tree, tree, tree));
2767extern int enforce_access                       PROTO((tree, tree));
2768extern tree convert_default_arg                 PROTO((tree, tree, tree));
2769extern tree convert_arg_to_ellipsis             PROTO((tree));
2770extern int is_properly_derived_from             PROTO((tree, tree));
2771
2772/* in class.c */
2773extern tree build_vbase_path			PROTO((enum tree_code, tree, tree, tree, int));
2774extern tree build_vtbl_ref			PROTO((tree, tree));
2775extern tree build_vfn_ref			PROTO((tree *, tree, tree));
2776extern void add_method				PROTO((tree, tree *, tree));
2777extern int currently_open_class			PROTO((tree));
2778extern tree get_vfield_offset			PROTO((tree));
2779extern void duplicate_tag_error			PROTO((tree));
2780extern tree finish_struct			PROTO((tree, tree, int));
2781extern void finish_struct_1			PROTO((tree, int));
2782extern int resolves_to_fixed_type_p		PROTO((tree, int *));
2783extern void init_class_processing		PROTO((void));
2784extern int is_empty_class			PROTO((tree));
2785extern void pushclass				PROTO((tree, int));
2786extern void popclass				PROTO((void));
2787extern void push_nested_class			PROTO((tree, int));
2788extern void pop_nested_class			PROTO((void));
2789extern void push_lang_context			PROTO((tree));
2790extern void pop_lang_context			PROTO((void));
2791extern tree instantiate_type			PROTO((tree, tree, int));
2792extern void print_class_statistics		PROTO((void));
2793extern void push_cache_obstack		        PROTO((void));
2794extern unsigned HOST_WIDE_INT skip_rtti_stuff	PROTO((tree *, tree));
2795extern void build_self_reference		PROTO((void));
2796extern void warn_hidden				PROTO((tree));
2797extern tree get_enclosing_class			PROTO((tree));
2798int is_base_of_enclosing_class			PROTO((tree, tree));
2799extern void unreverse_member_declarations       PROTO((tree));
2800extern void invalidate_class_lookup_cache       PROTO((void));
2801extern void maybe_note_name_used_in_class       PROTO((tree, tree));
2802extern void note_name_declared_in_class         PROTO((tree, tree));
2803
2804/* in cvt.c */
2805extern tree convert_to_reference		PROTO((tree, tree, int, int, tree));
2806extern tree convert_from_reference		PROTO((tree));
2807extern tree convert_pointer_to_real		PROTO((tree, tree));
2808extern tree convert_pointer_to			PROTO((tree, tree));
2809extern tree ocp_convert				PROTO((tree, tree, int, int));
2810extern tree cp_convert				PROTO((tree, tree));
2811extern tree convert				PROTO((tree, tree));
2812extern tree convert_force			PROTO((tree, tree, int));
2813extern tree build_type_conversion		PROTO((tree, tree, int));
2814extern tree build_expr_type_conversion		PROTO((int, tree, int));
2815extern tree type_promotes_to			PROTO((tree));
2816extern tree perform_qualification_conversions   PROTO((tree, tree));
2817
2818/* decl.c */
2819/* resume_binding_level */
2820extern void set_identifier_local_value		PROTO((tree, tree));
2821extern int global_bindings_p			PROTO((void));
2822extern int toplevel_bindings_p			PROTO((void));
2823extern int namespace_bindings_p			PROTO((void));
2824extern void keep_next_level			PROTO((void));
2825extern int kept_level_p				PROTO((void));
2826extern void declare_parm_level			PROTO((void));
2827extern void declare_pseudo_global_level		PROTO((void));
2828extern int pseudo_global_level_p		PROTO((void));
2829extern void set_class_shadows			PROTO((tree));
2830extern void pushlevel				PROTO((int));
2831extern void note_level_for_for			PROTO((void));
2832extern void pushlevel_temporary			PROTO((int));
2833extern tree poplevel				PROTO((int, int, int));
2834extern void resume_level			PROTO((struct binding_level *));
2835extern void delete_block			PROTO((tree));
2836extern void insert_block			PROTO((tree));
2837extern void add_block_current_level		PROTO((tree));
2838extern void set_block				PROTO((tree));
2839extern void pushlevel_class			PROTO((void));
2840extern void print_binding_stack			PROTO((void));
2841extern void print_binding_level			PROTO((struct binding_level *));
2842extern void push_namespace			PROTO((tree));
2843extern void pop_namespace			PROTO((void));
2844extern void maybe_push_to_top_level		PROTO((int));
2845extern void push_to_top_level			PROTO((void));
2846extern void pop_from_top_level			PROTO((void));
2847extern tree identifier_type_value		PROTO((tree));
2848extern void set_identifier_type_value		PROTO((tree, tree));
2849extern void pop_everything			PROTO((void));
2850extern void pushtag				PROTO((tree, tree, int));
2851extern tree make_anon_name			PROTO((void));
2852extern void clear_anon_tags			PROTO((void));
2853extern int decls_match				PROTO((tree, tree));
2854extern int duplicate_decls			PROTO((tree, tree));
2855extern tree pushdecl				PROTO((tree));
2856extern tree pushdecl_top_level			PROTO((tree));
2857extern void pushdecl_class_level		PROTO((tree));
2858#if 0
2859extern void pushdecl_nonclass_level		PROTO((tree));
2860#endif
2861extern tree pushdecl_namespace_level            PROTO((tree));
2862extern tree push_using_decl                     PROTO((tree, tree));
2863extern tree push_using_directive                PROTO((tree));
2864extern void push_class_level_binding		PROTO((tree, tree));
2865extern tree implicitly_declare			PROTO((tree));
2866extern tree lookup_label			PROTO((tree));
2867extern tree shadow_label			PROTO((tree));
2868extern tree define_label			PROTO((char *, int, tree));
2869extern void push_switch				PROTO((void));
2870extern void pop_switch				PROTO((void));
2871extern void define_case_label			PROTO((void));
2872extern tree getdecls				PROTO((void));
2873extern tree gettags				PROTO((void));
2874#if 0
2875extern void set_current_level_tags_transparency	PROTO((int));
2876#endif
2877extern tree binding_for_name                    PROTO((tree, tree));
2878extern tree namespace_binding                   PROTO((tree, tree));
2879extern void set_namespace_binding               PROTO((tree, tree, tree));
2880extern tree lookup_namespace_name		PROTO((tree, tree));
2881extern tree build_typename_type                 PROTO((tree, tree, tree, tree));
2882extern tree make_typename_type			PROTO((tree, tree));
2883extern tree lookup_name_nonclass		PROTO((tree));
2884extern tree lookup_function_nonclass            PROTO((tree, tree));
2885extern tree lookup_name				PROTO((tree, int));
2886extern tree lookup_name_current_level		PROTO((tree));
2887extern tree lookup_type_current_level		PROTO((tree));
2888extern tree lookup_name_namespace_only          PROTO((tree));
2889extern void begin_only_namespace_names          PROTO((void));
2890extern void end_only_namespace_names            PROTO((void));
2891extern tree namespace_ancestor			PROTO((tree, tree));
2892extern int  lookup_using_namespace              PROTO((tree,tree,tree,tree,int));
2893extern int  qualified_lookup_using_namespace    PROTO((tree,tree,tree,int));
2894extern tree auto_function			PROTO((tree, tree, enum built_in_function));
2895extern void init_decl_processing		PROTO((void));
2896extern int init_type_desc			PROTO((void));
2897extern tree define_function
2898	PROTO((const char *, tree, enum built_in_function,
2899	       void (*) (tree), const char *));
2900extern tree check_tag_decl			PROTO((tree));
2901extern void shadow_tag				PROTO((tree));
2902extern tree groktypename			PROTO((tree));
2903extern tree start_decl				PROTO((tree, tree, int, tree, tree));
2904extern void start_decl_1			PROTO((tree));
2905extern void cp_finish_decl			PROTO((tree, tree, tree, int, int));
2906extern void finish_decl				PROTO((tree, tree, tree));
2907extern void expand_static_init			PROTO((tree, tree));
2908extern int complete_array_type			PROTO((tree, tree, int));
2909extern tree build_ptrmemfunc_type		PROTO((tree));
2910/* the grokdeclarator prototype is in decl.h */
2911extern int parmlist_is_exprlist			PROTO((tree));
2912extern int copy_args_p				PROTO((tree));
2913extern int grok_ctor_properties			PROTO((tree, tree));
2914extern void grok_op_properties			PROTO((tree, int, int));
2915extern tree xref_tag				PROTO((tree, tree, int));
2916extern tree xref_tag_from_type			PROTO((tree, tree, int));
2917extern void xref_basetypes			PROTO((tree, tree, tree, tree));
2918extern tree start_enum				PROTO((tree));
2919extern tree finish_enum				PROTO((tree));
2920extern tree build_enumerator			PROTO((tree, tree, tree));
2921extern int start_function			PROTO((tree, tree, tree, int));
2922extern void expand_start_early_try_stmts	PROTO((void));
2923extern void store_parm_decls			PROTO((void));
2924extern void store_return_init			PROTO((tree, tree));
2925extern void finish_function			PROTO((int, int, int));
2926extern tree start_method			PROTO((tree, tree, tree));
2927extern tree finish_method			PROTO((tree));
2928extern void hack_incomplete_structures		PROTO((tree));
2929extern tree maybe_build_cleanup_and_delete	PROTO((tree));
2930extern tree maybe_build_cleanup			PROTO((tree));
2931extern void cplus_expand_expr_stmt		PROTO((tree));
2932extern void finish_stmt				PROTO((void));
2933extern void push_cp_function_context		PROTO((tree));
2934extern void pop_cp_function_context		PROTO((tree));
2935extern int in_function_p			PROTO((void));
2936extern void replace_defarg			PROTO((tree, tree));
2937extern void print_other_binding_stack		PROTO((struct binding_level *));
2938extern void revert_static_member_fn             PROTO((tree*, tree*, tree*));
2939extern void fixup_anonymous_aggr               PROTO((tree));
2940extern int check_static_variable_definition     PROTO((tree, tree));
2941extern void push_local_binding                  PROTO((tree, tree, int));
2942extern int push_class_binding                   PROTO((tree, tree));
2943extern tree check_default_argument              PROTO((tree, tree));
2944extern tree push_overloaded_decl		PROTO((tree, int));
2945extern void clear_identifier_class_values       PROTO((void));
2946extern void storetags                           PROTO((tree));
2947extern int vtable_decl_p                        PROTO((tree, void *));
2948extern int vtype_decl_p                         PROTO((tree, void *));
2949extern int sigtable_decl_p                      PROTO((tree, void *));
2950typedef int (*walk_globals_pred)                PROTO((tree, void *));
2951typedef int (*walk_globals_fn)                  PROTO((tree *, void *));
2952extern int walk_globals                         PROTO((walk_globals_pred,
2953						       walk_globals_fn,
2954						       void *));
2955typedef int (*walk_namespaces_fn)               PROTO((tree, void *));
2956extern int walk_namespaces                      PROTO((walk_namespaces_fn,
2957						       void *));
2958extern int wrapup_globals_for_namespace         PROTO((tree, void *));
2959
2960/* in decl2.c */
2961extern int check_java_method			PROTO((tree));
2962extern int lang_decode_option			PROTO((int, char **));
2963extern tree grok_method_quals			PROTO((tree, tree, tree));
2964extern void warn_if_unknown_interface		PROTO((tree));
2965extern void grok_x_components			PROTO((tree));
2966extern void maybe_retrofit_in_chrg		PROTO((tree));
2967extern void maybe_make_one_only			PROTO((tree));
2968extern void grokclassfn				PROTO((tree, tree, enum overload_flags, tree));
2969extern tree grok_alignof			PROTO((tree));
2970extern tree grok_array_decl			PROTO((tree, tree));
2971extern tree delete_sanity			PROTO((tree, tree, int, int));
2972extern tree check_classfn			PROTO((tree, tree));
2973extern void check_member_template               PROTO((tree));
2974extern tree grokfield				PROTO((tree, tree, tree, tree, tree));
2975extern tree grokbitfield			PROTO((tree, tree, tree));
2976extern tree groktypefield			PROTO((tree, tree));
2977extern tree grokoptypename			PROTO((tree, tree));
2978extern int copy_assignment_arg_p		PROTO((tree, int));
2979extern void cplus_decl_attributes		PROTO((tree, tree, tree));
2980extern tree constructor_name_full		PROTO((tree));
2981extern tree constructor_name			PROTO((tree));
2982extern void setup_vtbl_ptr			PROTO((void));
2983extern void mark_inline_for_output		PROTO((tree));
2984extern void clear_temp_name			PROTO((void));
2985extern tree get_temp_name			PROTO((tree, int));
2986extern tree get_temp_regvar			PROTO((tree, tree));
2987extern void finish_anon_union			PROTO((tree));
2988extern tree finish_table			PROTO((tree, tree, tree, int));
2989extern void finish_builtin_type			PROTO((tree, const char *,
2990						       tree *, int, tree));
2991extern tree coerce_new_type			PROTO((tree));
2992extern tree coerce_delete_type			PROTO((tree));
2993extern void comdat_linkage			PROTO((tree));
2994extern void import_export_class			PROTO((tree));
2995extern void import_export_vtable		PROTO((tree, tree, int));
2996extern void import_export_decl			PROTO((tree));
2997extern tree build_cleanup			PROTO((tree));
2998extern void finish_file				PROTO((void));
2999extern tree reparse_absdcl_as_expr		PROTO((tree, tree));
3000extern tree reparse_absdcl_as_casts		PROTO((tree, tree));
3001extern tree build_expr_from_tree		PROTO((tree));
3002extern tree reparse_decl_as_expr		PROTO((tree, tree));
3003extern tree finish_decl_parsing			PROTO((tree));
3004extern tree check_cp_case_value			PROTO((tree));
3005extern void set_decl_namespace                  PROTO((tree, tree, int));
3006extern tree current_decl_namespace              PROTO((void));
3007extern void push_decl_namespace                 PROTO((tree));
3008extern void pop_decl_namespace                  PROTO((void));
3009extern void push_scope				PROTO((tree));
3010extern void pop_scope				PROTO((tree));
3011extern void do_namespace_alias			PROTO((tree, tree));
3012extern void do_toplevel_using_decl		PROTO((tree));
3013extern void do_local_using_decl                 PROTO((tree));
3014extern tree do_class_using_decl			PROTO((tree));
3015extern void do_using_directive			PROTO((tree));
3016extern void check_default_args			PROTO((tree));
3017extern void mark_used				PROTO((tree));
3018extern tree handle_class_head			PROTO((tree, tree, tree));
3019extern tree lookup_arg_dependent                PROTO((tree, tree, tree));
3020extern void finish_static_data_member_decl      PROTO((tree, tree, tree, int, int));
3021
3022/* in errfn.c */
3023/* The cp_* functions aren't suitable for ATTRIBUTE_PRINTF. */
3024extern void cp_error				PVPROTO((const char *, ...));
3025extern void cp_error_at				PVPROTO((const char *, ...));
3026extern void cp_warning				PVPROTO((const char *, ...));
3027extern void cp_warning_at			PVPROTO((const char *, ...));
3028extern void cp_pedwarn				PVPROTO((const char *, ...));
3029extern void cp_pedwarn_at			PVPROTO((const char *, ...));
3030extern void cp_compiler_error			PVPROTO((const char *, ...));
3031extern void cp_sprintf				PVPROTO((const char *, ...));
3032extern void cp_deprecated                       PROTO((const char*));
3033
3034/* in error.c */
3035extern void init_error				PROTO((void));
3036extern char *fndecl_as_string			PROTO((tree, int));
3037extern char *type_as_string			PROTO((tree, int));
3038extern char *type_as_string_real		PROTO((tree, int, int));
3039extern char *args_as_string			PROTO((tree, int));
3040extern char *decl_as_string			PROTO((tree, int));
3041extern char *expr_as_string			PROTO((tree, int));
3042extern char *code_as_string			PROTO((enum tree_code, int));
3043extern char *language_as_string			PROTO((enum languages, int));
3044extern char *parm_as_string			PROTO((int, int));
3045extern char *op_as_string			PROTO((enum tree_code, int));
3046extern char *assop_as_string			PROTO((enum tree_code, int));
3047extern char *cv_as_string			PROTO((tree, int));
3048extern char *lang_decl_name			PROTO((tree, int));
3049extern char *cp_file_of				PROTO((tree));
3050extern int cp_line_of				PROTO((tree));
3051
3052/* in except.c */
3053extern void init_exception_processing		PROTO((void));
3054extern void expand_start_catch_block		PROTO((tree, tree));
3055extern void expand_end_catch_block		PROTO((void));
3056extern void expand_builtin_throw		PROTO((void));
3057extern void expand_start_eh_spec		PROTO((void));
3058extern void expand_exception_blocks		PROTO((void));
3059extern tree start_anon_func			PROTO((void));
3060extern void end_anon_func			PROTO((void));
3061extern void expand_throw			PROTO((tree));
3062extern tree build_throw				PROTO((tree));
3063extern void mark_all_runtime_matches            PROTO((void));
3064
3065/* in expr.c */
3066extern void init_cplus_expand			PROTO((void));
3067extern void fixup_result_decl			PROTO((tree, struct rtx_def *));
3068extern int extract_init				PROTO((tree, tree));
3069extern void do_case				PROTO((tree, tree));
3070
3071/* friend.c */
3072extern int is_friend				PROTO((tree, tree));
3073extern void make_friend_class			PROTO((tree, tree));
3074extern void add_friend                          PROTO((tree, tree));
3075extern void add_friends                         PROTO((tree, tree, tree));
3076extern tree do_friend				PROTO((tree, tree, tree, tree, tree, enum overload_flags, tree, int));
3077
3078/* in init.c */
3079extern void init_init_processing		PROTO((void));
3080extern void expand_direct_vtbls_init		PROTO((tree, tree, int, int, tree));
3081extern void emit_base_init			PROTO((tree, int));
3082extern void check_base_init			PROTO((tree));
3083extern void expand_member_init			PROTO((tree, tree, tree));
3084extern void expand_aggr_init			PROTO((tree, tree, int));
3085extern int is_aggr_typedef			PROTO((tree, int));
3086extern int is_aggr_type				PROTO((tree, int));
3087extern tree get_aggr_from_typedef		PROTO((tree, int));
3088extern tree get_type_value			PROTO((tree));
3089extern tree build_member_call			PROTO((tree, tree, tree));
3090extern tree build_offset_ref			PROTO((tree, tree));
3091extern tree resolve_offset_ref			PROTO((tree));
3092extern tree decl_constant_value			PROTO((tree));
3093extern tree build_new				PROTO((tree, tree, tree, int));
3094extern tree build_new_1				PROTO((tree));
3095extern tree expand_vec_init			PROTO((tree, tree, tree, tree, int));
3096extern tree build_x_delete			PROTO((tree, int, tree));
3097extern tree build_delete			PROTO((tree, tree, tree, int, int));
3098extern tree build_vbase_delete			PROTO((tree, tree));
3099extern tree build_vec_delete			PROTO((tree, tree, tree, tree, int));
3100extern tree build_base_dtor_call		PROTO((tree, tree, tree));
3101extern void init_vlist				PROTO((tree));
3102
3103/* in input.c */
3104
3105/* in lex.c */
3106extern char *file_name_nondirectory		PROTO((const char *));
3107extern tree make_pointer_declarator		PROTO((tree, tree));
3108extern tree make_reference_declarator		PROTO((tree, tree));
3109extern tree make_call_declarator		PROTO((tree, tree, tree, tree));
3110extern void set_quals_and_spec			PROTO((tree, tree, tree));
3111extern char *operator_name_string		PROTO((tree));
3112extern void lang_init				PROTO((void));
3113extern void lang_finish				PROTO((void));
3114#if 0
3115extern void reinit_lang_specific		PROTO((void));
3116#endif
3117extern void reinit_parse_for_function		PROTO((void));
3118extern void print_parse_statistics		PROTO((void));
3119extern void extract_interface_info		PROTO((void));
3120extern void do_pending_inlines			PROTO((void));
3121extern void process_next_inline			PROTO((tree));
3122extern struct pending_input *save_pending_input PROTO((void));
3123extern void restore_pending_input		PROTO((struct pending_input *));
3124extern void yyungetc				PROTO((int, int));
3125extern void reinit_parse_for_method		PROTO((int, tree));
3126extern void reinit_parse_for_block		PROTO((int, struct obstack *));
3127extern tree cons_up_default_function		PROTO((tree, tree, int));
3128extern void check_for_missing_semicolon		PROTO((tree));
3129extern void note_got_semicolon			PROTO((tree));
3130extern void note_list_got_semicolon		PROTO((tree));
3131extern void do_pending_lang_change		PROTO((void));
3132extern int identifier_type			PROTO((tree));
3133extern void see_typename			PROTO((void));
3134extern tree do_identifier			PROTO((tree, int, tree));
3135extern tree do_scoped_id			PROTO((tree, int));
3136extern tree identifier_typedecl_value		PROTO((tree));
3137extern int real_yylex				PROTO((void));
3138extern int is_rid				PROTO((tree));
3139extern tree build_lang_decl			PROTO((enum tree_code, tree, tree));
3140extern void retrofit_lang_decl			PROTO((tree));
3141extern tree build_lang_field_decl		PROTO((enum tree_code, tree, tree));
3142extern void copy_lang_decl			PROTO((tree));
3143extern tree make_lang_type			PROTO((enum tree_code));
3144extern void dump_time_statistics		PROTO((void));
3145extern void compiler_error			PVPROTO((const char *, ...))
3146  ATTRIBUTE_PRINTF_1;
3147extern void yyerror				PROTO((const char *));
3148extern void clear_inline_text_obstack		PROTO((void));
3149extern void maybe_snarf_defarg			PROTO((void));
3150extern tree snarf_defarg			PROTO((void));
3151extern void add_defarg_fn			PROTO((tree));
3152extern void do_pending_defargs			PROTO((void));
3153extern int identifier_type			PROTO((tree));
3154extern void yyhook				PROTO((int));
3155extern int cp_type_qual_from_rid                PROTO((tree));
3156
3157/* in method.c */
3158extern void init_method				PROTO((void));
3159extern void do_inline_function_hair		PROTO((tree, tree));
3160extern char *build_overload_name		PROTO((tree, int, int));
3161extern tree build_static_name			PROTO((tree, tree));
3162extern tree build_decl_overload			PROTO((tree, tree, int));
3163extern tree build_decl_overload_real            PROTO((tree, tree, tree, tree,
3164						       tree, int));
3165extern void set_mangled_name_for_decl           PROTO((tree));
3166extern tree build_typename_overload		PROTO((tree));
3167extern tree build_overload_with_type		PROTO((tree, tree));
3168extern tree build_destructor_name		PROTO((tree, int));
3169extern tree build_opfncall			PROTO((enum tree_code, int, tree, tree, tree));
3170extern tree hack_identifier			PROTO((tree, tree));
3171extern tree make_thunk				PROTO((tree, int));
3172extern void emit_thunk				PROTO((tree));
3173extern void synthesize_method			PROTO((tree));
3174extern tree get_id_2				PROTO((char *, tree));
3175extern tree get_vlist_vtable_id			PROTO((tree, tree));
3176
3177
3178/* in pt.c */
3179extern void check_template_shadow		PROTO ((tree));
3180extern tree innermost_args			PROTO ((tree));
3181extern tree tsubst				PROTO ((tree, tree, int, tree));
3182extern tree tsubst_expr				PROTO ((tree, tree, int, tree));
3183extern tree tsubst_copy				PROTO ((tree, tree, int, tree));
3184extern void maybe_begin_member_template_processing PROTO((tree));
3185extern void maybe_end_member_template_processing PROTO((void));
3186extern tree finish_member_template_decl         PROTO((tree));
3187extern void begin_template_parm_list		PROTO((void));
3188extern void begin_specialization                PROTO((void));
3189extern void reset_specialization                PROTO((void));
3190extern void end_specialization                  PROTO((void));
3191extern void begin_explicit_instantiation        PROTO((void));
3192extern void end_explicit_instantiation          PROTO((void));
3193extern tree check_explicit_specialization       PROTO((tree, tree, int, int));
3194extern tree process_template_parm		PROTO((tree, tree));
3195extern tree end_template_parm_list		PROTO((tree));
3196extern void end_template_decl			PROTO((void));
3197extern tree current_template_args		PROTO((void));
3198extern tree push_template_decl			PROTO((tree));
3199extern tree push_template_decl_real             PROTO((tree, int));
3200extern void redeclare_class_template            PROTO((tree, tree));
3201extern tree lookup_template_class		PROTO((tree, tree, tree, tree, int));
3202extern tree lookup_template_function            PROTO((tree, tree));
3203extern int uses_template_parms			PROTO((tree));
3204extern tree instantiate_class_template		PROTO((tree));
3205extern tree instantiate_template		PROTO((tree, tree));
3206extern void overload_template_name		PROTO((tree));
3207extern int fn_type_unification                  PROTO((tree, tree, tree, tree, tree, unification_kind_t));
3208struct tinst_level *tinst_for_decl		PROTO((void));
3209extern void mark_decl_instantiated		PROTO((tree, int));
3210extern int more_specialized			PROTO((tree, tree, tree));
3211extern void mark_class_instantiated		PROTO((tree, int));
3212extern void do_decl_instantiation		PROTO((tree, tree, tree));
3213extern void do_type_instantiation		PROTO((tree, tree));
3214extern tree instantiate_decl			PROTO((tree));
3215extern tree do_poplevel				PROTO((void));
3216extern tree get_bindings			PROTO((tree, tree, tree));
3217/* CONT ... */
3218extern void add_tree				PROTO((tree));
3219extern void begin_tree                          PROTO((void));
3220extern void end_tree                            PROTO((void));
3221extern void add_maybe_template			PROTO((tree, tree));
3222extern void pop_tinst_level			PROTO((void));
3223extern int more_specialized_class		PROTO((tree, tree));
3224extern void do_pushlevel			PROTO((void));
3225extern int is_member_template                   PROTO((tree));
3226extern int template_parms_equal                 PROTO((tree, tree));
3227extern int comp_template_parms                  PROTO((tree, tree));
3228extern int template_class_depth                 PROTO((tree));
3229extern int is_specialization_of                 PROTO((tree, tree));
3230extern int comp_template_args                   PROTO((tree, tree));
3231extern void maybe_process_partial_specialization PROTO((tree));
3232extern void maybe_check_template_type           PROTO((tree));
3233extern tree most_specialized_instantiation      PROTO((tree, tree));
3234extern void print_candidates                    PROTO((tree));
3235extern int instantiate_pending_templates        PROTO((void));
3236
3237extern int processing_specialization;
3238extern int processing_explicit_instantiation;
3239extern int processing_template_parmlist;
3240
3241/* in repo.c */
3242extern void repo_template_used			PROTO((tree));
3243extern void repo_template_instantiated		PROTO((tree, int));
3244extern void init_repo				PROTO((const char *));
3245extern void finish_repo				PROTO((void));
3246
3247/* in rtti.c */
3248extern void init_rtti_processing		PROTO((void));
3249extern tree get_tinfo_fn_dynamic		PROTO((tree));
3250extern tree build_typeid			PROTO((tree));
3251extern tree build_x_typeid			PROTO((tree));
3252extern tree get_tinfo_fn			PROTO((tree));
3253extern tree get_tinfo_fn_unused			PROTO((tree));
3254extern tree get_typeid				PROTO((tree));
3255extern tree get_typeid_1			PROTO((tree));
3256extern tree build_dynamic_cast			PROTO((tree, tree));
3257extern void synthesize_tinfo_fn			PROTO((tree));
3258
3259/* in search.c */
3260extern int types_overlap_p			PROTO((tree, tree));
3261extern tree get_vbase				PROTO((tree, tree));
3262extern tree get_binfo				PROTO((tree, tree, int));
3263extern int get_base_distance			PROTO((tree, tree, int, tree *));
3264extern int accessible_p                         PROTO((tree, tree));
3265extern tree lookup_field			PROTO((tree, tree, int, int));
3266extern int lookup_fnfields_1                    PROTO((tree, tree));
3267extern tree lookup_fnfields			PROTO((tree, tree, int));
3268extern tree lookup_member			PROTO((tree, tree, int, int));
3269extern tree lookup_nested_tag			PROTO((tree, tree));
3270extern tree get_matching_virtual		PROTO((tree, tree, int));
3271extern tree get_abstract_virtuals		PROTO((tree));
3272extern tree init_vbase_pointers			PROTO((tree, tree));
3273extern void expand_indirect_vtbls_init		PROTO((tree, tree, tree));
3274extern void clear_search_slots			PROTO((tree));
3275extern tree get_vbase_types			PROTO((tree));
3276extern void note_debug_info_needed		PROTO((tree));
3277extern void push_class_decls			PROTO((tree));
3278extern void pop_class_decls			PROTO((void));
3279extern void unuse_fields			PROTO((tree));
3280extern void print_search_statistics		PROTO((void));
3281extern void init_search_processing		PROTO((void));
3282extern void reinit_search_statistics		PROTO((void));
3283extern tree current_scope			PROTO((void));
3284extern tree lookup_conversions			PROTO((tree));
3285extern tree binfo_for_vtable			PROTO((tree));
3286extern tree dfs_walk                            PROTO((tree,
3287						       tree (*)(tree, void *),
3288						       tree (*) (tree, void *),
3289						       void *));
3290extern tree dfs_unmark                          PROTO((tree, void *));
3291extern tree markedp                             PROTO((tree, void *));
3292
3293/* in semantics.c */
3294extern void finish_expr_stmt                    PROTO((tree));
3295extern tree begin_if_stmt                       PROTO((void));
3296extern void finish_if_stmt_cond                 PROTO((tree, tree));
3297extern tree finish_then_clause                  PROTO((tree));
3298extern void begin_else_clause                   PROTO((void));
3299extern void finish_else_clause                  PROTO((tree));
3300extern void finish_if_stmt                      PROTO((void));
3301extern tree begin_while_stmt                    PROTO((void));
3302extern void finish_while_stmt_cond              PROTO((tree, tree));
3303extern void finish_while_stmt                   PROTO((tree));
3304extern tree begin_do_stmt                       PROTO((void));
3305extern void finish_do_body                      PROTO((tree));
3306extern void finish_do_stmt                      PROTO((tree, tree));
3307extern void finish_return_stmt                  PROTO((tree));
3308extern tree begin_for_stmt                      PROTO((void));
3309extern void finish_for_init_stmt                PROTO((tree));
3310extern void finish_for_cond                     PROTO((tree, tree));
3311extern void finish_for_expr                     PROTO((tree, tree));
3312extern void finish_for_stmt                     PROTO((tree, tree));
3313extern void finish_break_stmt                   PROTO((void));
3314extern void finish_continue_stmt                PROTO((void));
3315extern void begin_switch_stmt                   PROTO((void));
3316extern tree finish_switch_cond                  PROTO((tree));
3317extern void finish_switch_stmt                  PROTO((tree, tree));
3318extern void finish_case_label                   PROTO((tree, tree));
3319extern void finish_goto_stmt                    PROTO((tree));
3320extern tree begin_try_block                     PROTO((void));
3321extern void finish_try_block                    PROTO((tree));
3322extern void finish_handler_sequence             PROTO((tree));
3323extern tree begin_handler                       PROTO((void));
3324extern void finish_handler_parms                PROTO((tree));
3325extern void finish_handler                      PROTO((tree));
3326extern tree begin_compound_stmt                 PROTO((int));
3327extern tree finish_compound_stmt                PROTO((int, tree));
3328extern void finish_asm_stmt                     PROTO((tree, tree, tree, tree, tree));
3329extern tree finish_parenthesized_expr           PROTO((tree));
3330extern tree begin_stmt_expr                     PROTO((void));
3331extern tree finish_stmt_expr                    PROTO((tree, tree));
3332extern tree finish_call_expr                    PROTO((tree, tree, int));
3333extern tree finish_increment_expr               PROTO((tree, enum tree_code));
3334extern tree finish_this_expr                    PROTO((void));
3335extern tree finish_object_call_expr             PROTO((tree, tree, tree));
3336extern tree finish_qualified_object_call_expr   PROTO((tree, tree, tree));
3337extern tree finish_pseudo_destructor_call_expr  PROTO((tree, tree, tree));
3338extern tree finish_qualified_call_expr          PROTO ((tree, tree));
3339extern tree finish_label_address_expr           PROTO((tree));
3340extern tree finish_unary_op_expr                PROTO((enum tree_code, tree));
3341extern tree finish_id_expr                      PROTO((tree));
3342extern int  begin_new_placement                 PROTO((void));
3343extern tree finish_new_placement                PROTO((tree, int));
3344extern int begin_function_definition            PROTO((tree, tree));
3345extern tree begin_constructor_declarator        PROTO((tree, tree));
3346extern tree finish_declarator                   PROTO((tree, tree, tree, tree, int));
3347extern void finish_translation_unit             PROTO((void));
3348extern tree finish_template_type_parm           PROTO((tree, tree));
3349extern tree finish_template_template_parm       PROTO((tree, tree));
3350extern tree finish_parmlist                     PROTO((tree, int));
3351extern tree begin_class_definition              PROTO((tree));
3352extern tree finish_class_definition             PROTO((tree, tree, int, int));
3353extern void finish_default_args                 PROTO((void));
3354extern void begin_inline_definitions            PROTO((void));
3355extern void finish_inline_definitions           PROTO((void));
3356extern tree finish_member_class_template        PROTO((tree));
3357extern void finish_template_decl                PROTO((tree));
3358extern tree finish_template_type                PROTO((tree, tree, int));
3359extern void enter_scope_of                      PROTO((tree));
3360extern tree finish_base_specifier               PROTO((tree, tree, int));
3361extern void finish_member_declaration           PROTO((tree));
3362extern void check_multiple_declarators          PROTO((void));
3363extern tree finish_typeof			PROTO((tree));
3364
3365/* in sig.c */
3366extern tree build_signature_pointer_type	PROTO((tree));
3367extern tree build_signature_reference_type	PROTO((tree));
3368extern tree build_signature_pointer_constructor	PROTO((tree, tree));
3369extern tree build_signature_method_call		PROTO((tree, tree));
3370extern tree build_optr_ref			PROTO((tree));
3371extern void append_signature_fields		PROTO((tree));
3372
3373/* in spew.c */
3374extern void init_spew				PROTO((void));
3375extern int peekyylex				PROTO((void));
3376extern int yylex				PROTO((void));
3377extern tree arbitrate_lookup			PROTO((tree, tree, tree));
3378
3379/* in tree.c */
3380extern int pod_type_p				PROTO((tree));
3381extern void unshare_base_binfos			PROTO((tree));
3382extern int member_p				PROTO((tree));
3383extern int real_lvalue_p			PROTO((tree));
3384extern tree build_min				PVPROTO((enum tree_code, tree, ...));
3385extern tree build_min_nt			PVPROTO((enum tree_code, ...));
3386extern tree min_tree_cons			PROTO((tree, tree, tree));
3387extern int lvalue_p				PROTO((tree));
3388extern int lvalue_or_else			PROTO((tree, const char *));
3389extern tree build_cplus_new			PROTO((tree, tree));
3390extern tree get_target_expr			PROTO((tree));
3391extern tree break_out_cleanups			PROTO((tree));
3392extern tree break_out_calls			PROTO((tree));
3393extern tree build_cplus_method_type		PROTO((tree, tree, tree));
3394extern tree build_cplus_staticfn_type		PROTO((tree, tree, tree));
3395extern tree build_cplus_array_type		PROTO((tree, tree));
3396extern int layout_basetypes			PROTO((tree, int));
3397extern tree build_vbase_pointer_fields		PROTO((tree));
3398extern tree build_base_fields			PROTO((tree));
3399extern tree hash_tree_cons			PROTO((tree, tree, tree));
3400extern tree hash_tree_chain			PROTO((tree, tree));
3401extern tree hash_chainon			PROTO((tree, tree));
3402extern tree make_binfo				PROTO((tree, tree, tree, tree));
3403extern tree binfo_value				PROTO((tree, tree));
3404extern tree reverse_path			PROTO((tree));
3405extern int count_functions			PROTO((tree));
3406extern int is_overloaded_fn			PROTO((tree));
3407extern tree get_first_fn			PROTO((tree));
3408extern tree binding_init                        PROTO((struct tree_binding*));
3409extern int bound_pmf_p				PROTO((tree));
3410extern tree ovl_cons                            PROTO((tree, tree));
3411extern tree scratch_ovl_cons                    PROTO((tree, tree));
3412extern int ovl_member                           PROTO((tree, tree));
3413extern tree build_overload                      PROTO((tree, tree));
3414extern tree fnaddr_from_vtable_entry		PROTO((tree));
3415extern tree function_arg_chain			PROTO((tree));
3416extern int promotes_to_aggr_type		PROTO((tree, enum tree_code));
3417extern int is_aggr_type_2			PROTO((tree, tree));
3418extern char *lang_printable_name		PROTO((tree, int));
3419extern tree build_exception_variant		PROTO((tree, tree));
3420extern tree copy_template_template_parm		PROTO((tree));
3421extern tree copy_to_permanent			PROTO((tree));
3422extern tree permanent_p                         PROTO((tree));
3423extern void print_lang_statistics		PROTO((void));
3424extern void __eprintf
3425	PROTO((const char *, const char *, unsigned, const char *));
3426extern tree array_type_nelts_total		PROTO((tree));
3427extern tree array_type_nelts_top		PROTO((tree));
3428extern tree break_out_target_exprs		PROTO((tree));
3429extern tree get_type_decl			PROTO((tree));
3430extern tree vec_binfo_member			PROTO((tree, tree));
3431extern tree hack_decl_function_context 		PROTO((tree));
3432extern tree decl_namespace_context 		PROTO((tree));
3433extern tree lvalue_type				PROTO((tree));
3434extern tree error_type				PROTO((tree));
3435extern tree make_temp_vec			PROTO((int));
3436extern tree build_ptr_wrapper			PROTO((void *));
3437extern tree build_expr_ptr_wrapper		PROTO((void *));
3438extern tree build_int_wrapper			PROTO((int));
3439extern tree build_srcloc_here			PROTO((void));
3440extern int varargs_function_p			PROTO((tree));
3441extern int really_overloaded_fn			PROTO((tree));
3442extern int cp_tree_equal			PROTO((tree, tree));
3443extern int can_free				PROTO((struct obstack *, tree));
3444extern tree mapcar				PROTO((tree, tree (*) (tree)));
3445extern tree no_linkage_check			PROTO((tree));
3446extern void debug_binfo				PROTO((tree));
3447extern void push_expression_obstack		PROTO((void));
3448extern tree build_dummy_object			PROTO((tree));
3449extern tree maybe_dummy_object			PROTO((tree, tree *));
3450extern int is_dummy_object			PROTO((tree));
3451extern tree search_tree                         PROTO((tree, tree (*)(tree)));
3452extern int cp_valid_lang_attribute		PROTO((tree, tree, tree, tree));
3453extern tree make_ptrmem_cst                     PROTO((tree, tree));
3454
3455#define scratchalloc expralloc
3456#define scratch_tree_cons expr_tree_cons
3457#define build_scratch_list build_expr_list
3458#define make_scratch_vec make_temp_vec
3459#define push_scratch_obstack push_expression_obstack
3460
3461/* in typeck.c */
3462extern int string_conv_p			PROTO((tree, tree, int));
3463extern tree condition_conversion		PROTO((tree));
3464extern tree target_type				PROTO((tree));
3465extern tree require_complete_type		PROTO((tree));
3466extern tree require_complete_type_in_void	PROTO((tree));
3467extern tree complete_type			PROTO((tree));
3468extern tree complete_type_or_else               PROTO((tree, tree));
3469extern int type_unknown_p			PROTO((tree));
3470extern int fntype_p				PROTO((tree));
3471extern tree commonparms				PROTO((tree, tree));
3472extern tree original_type			PROTO((tree));
3473extern tree common_type				PROTO((tree, tree));
3474extern int compexcepttypes			PROTO((tree, tree));
3475extern int comptypes				PROTO((tree, tree, int));
3476extern int comp_target_types			PROTO((tree, tree, int));
3477extern int compparms				PROTO((tree, tree));
3478extern int comp_target_types			PROTO((tree, tree, int));
3479extern int comp_cv_qualification                PROTO((tree, tree));
3480extern int comp_cv_qual_signature               PROTO((tree, tree));
3481extern int self_promoting_args_p		PROTO((tree));
3482extern tree unsigned_type			PROTO((tree));
3483extern tree signed_type				PROTO((tree));
3484extern tree signed_or_unsigned_type		PROTO((int, tree));
3485extern tree expr_sizeof				PROTO((tree));
3486extern tree c_sizeof				PROTO((tree));
3487extern tree c_sizeof_nowarn			PROTO((tree));
3488extern tree c_alignof				PROTO((tree));
3489extern tree inline_conversion			PROTO((tree));
3490extern tree decay_conversion			PROTO((tree));
3491extern tree default_conversion			PROTO((tree));
3492extern tree build_object_ref			PROTO((tree, tree, tree));
3493extern tree build_component_ref_1		PROTO((tree, tree, int));
3494extern tree build_component_ref			PROTO((tree, tree, tree, int));
3495extern tree build_x_component_ref		PROTO((tree, tree, tree, int));
3496extern tree build_x_indirect_ref		PROTO((tree, const char *));
3497extern tree build_indirect_ref			PROTO((tree, const char *));
3498extern tree build_array_ref			PROTO((tree, tree));
3499extern tree build_x_function_call		PROTO((tree, tree, tree));
3500extern tree get_member_function_from_ptrfunc	PROTO((tree *, tree));
3501extern tree build_function_call_real		PROTO((tree, tree, int, int));
3502extern tree build_function_call			PROTO((tree, tree));
3503extern tree build_function_call_maybe		PROTO((tree, tree));
3504extern tree convert_arguments			PROTO((tree, tree, tree, int));
3505extern tree build_x_binary_op			PROTO((enum tree_code, tree, tree));
3506extern tree build_binary_op			PROTO((enum tree_code, tree, tree));
3507extern tree build_binary_op_nodefault		PROTO((enum tree_code, tree, tree, enum tree_code));
3508extern tree build_x_unary_op			PROTO((enum tree_code, tree));
3509extern tree build_unary_op			PROTO((enum tree_code, tree, int));
3510extern tree unary_complex_lvalue		PROTO((enum tree_code, tree));
3511extern int mark_addressable			PROTO((tree));
3512extern tree build_x_conditional_expr		PROTO((tree, tree, tree));
3513extern tree build_conditional_expr		PROTO((tree, tree, tree));
3514extern tree build_x_compound_expr		PROTO((tree));
3515extern tree build_compound_expr			PROTO((tree));
3516extern tree build_static_cast			PROTO((tree, tree));
3517extern tree build_reinterpret_cast		PROTO((tree, tree));
3518extern tree build_const_cast			PROTO((tree, tree));
3519extern tree build_c_cast			PROTO((tree, tree));
3520extern tree build_x_modify_expr			PROTO((tree, enum tree_code, tree));
3521extern tree build_modify_expr			PROTO((tree, enum tree_code, tree));
3522extern tree convert_for_initialization		PROTO((tree, tree, tree, int, const char *, tree, int));
3523extern void c_expand_asm_operands		PROTO((tree, tree, tree, tree, int, char *, int));
3524extern void c_expand_return			PROTO((tree));
3525extern tree c_expand_start_case			PROTO((tree));
3526extern int comp_ptr_ttypes			PROTO((tree, tree));
3527extern int ptr_reasonably_similar		PROTO((tree, tree));
3528extern tree build_ptrmemfunc			PROTO((tree, tree, int));
3529extern int cp_type_quals                        PROTO((tree));
3530extern int cp_has_mutable_p                     PROTO((tree));
3531extern int at_least_as_qualified_p              PROTO((tree, tree));
3532extern int more_qualified_p                     PROTO((tree, tree));
3533extern tree build_ptrmemfunc1                   PROTO((tree, tree, tree, tree, tree));
3534extern void expand_ptrmemfunc_cst               PROTO((tree, tree *, tree *, tree *, tree *));
3535extern tree delta2_from_ptrmemfunc              PROTO((tree));
3536extern tree pfn_from_ptrmemfunc                 PROTO((tree));
3537
3538/* in typeck2.c */
3539extern tree error_not_base_type			PROTO((tree, tree));
3540extern tree binfo_or_else			PROTO((tree, tree));
3541extern void readonly_error			PROTO((tree, const char *, int));
3542extern void abstract_virtuals_error		PROTO((tree, tree));
3543extern void signature_error			PROTO((tree, tree));
3544extern void incomplete_type_error		PROTO((tree, tree));
3545extern void my_friendly_abort			PROTO((int))
3546  ATTRIBUTE_NORETURN;
3547extern void my_friendly_assert			PROTO((int, int));
3548extern tree store_init_value			PROTO((tree, tree));
3549extern tree digest_init				PROTO((tree, tree, tree *));
3550extern tree build_scoped_ref			PROTO((tree, tree));
3551extern tree build_x_arrow			PROTO((tree));
3552extern tree build_m_component_ref		PROTO((tree, tree));
3553extern tree build_functional_cast		PROTO((tree, tree));
3554extern char *enum_name_string			PROTO((tree, tree));
3555extern void report_case_error			PROTO((int, tree, tree, tree));
3556extern void check_for_new_type			PROTO((const char *, flagged_type_tree));
3557extern tree initializer_constant_valid_p	PROTO((tree, tree));
3558
3559/* in xref.c */
3560extern void GNU_xref_begin			PROTO((const char *));
3561extern void GNU_xref_end			PROTO((int));
3562extern void GNU_xref_file			PROTO((const char *));
3563extern void GNU_xref_start_scope		PROTO((HOST_WIDE_INT));
3564extern void GNU_xref_end_scope			PROTO((HOST_WIDE_INT, HOST_WIDE_INT, int, int));
3565extern void GNU_xref_ref			PROTO((tree, const char *));
3566extern void GNU_xref_decl			PROTO((tree, tree));
3567extern void GNU_xref_call			PROTO((tree, const char *));
3568extern void GNU_xref_function			PROTO((tree, tree));
3569extern void GNU_xref_assign			PROTO((tree));
3570extern void GNU_xref_hier			PROTO((tree, tree, int, int, int));
3571extern void GNU_xref_member			PROTO((tree, tree));
3572
3573/* -- end of C++ */
3574
3575#endif /* not _CP_TREE_H */
3576