1/* Definitions for C parsing and type checking.
2 Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
3 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 2, or (at your option) any later
10version.
11
12GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15for more details.
16
17You should have received a copy of the GNU General Public License
18along with GCC; see the file COPYING. If not, write to the Free
19Software Foundation, 59 Temple Place - Suite 330, Boston, MA
2002111-1307, USA. */
21
22#ifndef GCC_C_TREE_H
23#define GCC_C_TREE_H
24
25#include "c-common.h"
26
27/* Language-dependent contents of an identifier. */
28
29/* The limbo_value is used for block level extern declarations, which need
30 to be type checked against subsequent extern declarations. They can't
31 be referenced after they fall out of scope, so they can't be global.
32
33 The rid_code field is used for keywords. It is in all
34 lang_identifier nodes, because some keywords are only special in a
35 particular context. */
36
| 1/* Definitions for C parsing and type checking.
2 Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
3 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 2, or (at your option) any later
10version.
11
12GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15for more details.
16
17You should have received a copy of the GNU General Public License
18along with GCC; see the file COPYING. If not, write to the Free
19Software Foundation, 59 Temple Place - Suite 330, Boston, MA
2002111-1307, USA. */
21
22#ifndef GCC_C_TREE_H
23#define GCC_C_TREE_H
24
25#include "c-common.h"
26
27/* Language-dependent contents of an identifier. */
28
29/* The limbo_value is used for block level extern declarations, which need
30 to be type checked against subsequent extern declarations. They can't
31 be referenced after they fall out of scope, so they can't be global.
32
33 The rid_code field is used for keywords. It is in all
34 lang_identifier nodes, because some keywords are only special in a
35 particular context. */
36
|
37struct lang_identifier
| 37struct lang_identifier GTY(())
|
38{
| 38{
|
39 struct c_common_identifier ignore;
40 tree global_value, local_value, label_value, implicit_decl;
41 tree error_locus, limbo_value;
| 39 struct c_common_identifier common_id;
40 tree global_value;
41 tree local_value;
42 tree label_value;
43 tree implicit_decl;
44 tree error_locus;
45 tree limbo_value;
|
42};
43
| 46};
47
|
| 48/* The resulting tree type. */
49
50union lang_tree_node
51 GTY((desc ("TREE_CODE (&%h.generic) == IDENTIFIER_NODE"),
52 chain_next ("(union lang_tree_node *)TREE_CHAIN (&%h.generic)")))
53{
54 union tree_node GTY ((tag ("0"),
55 desc ("tree_node_structure (&%h)")))
56 generic;
57 struct lang_identifier GTY ((tag ("1"))) identifier;
58};
59
|
44/* Language-specific declaration information. */
45
| 60/* Language-specific declaration information. */
61
|
46struct lang_decl
| 62struct lang_decl GTY(())
|
47{
48 struct c_lang_decl base;
49 /* The return types and parameter types may have variable size.
50 This is a list of any SAVE_EXPRs that need to be evaluated to
51 compute those sizes. */
52 tree pending_sizes;
53};
54
55/* Macros for access to language-specific slots in an identifier. */
56/* Each of these slots contains a DECL node or null. */
57
58/* This represents the value which the identifier has in the
59 file-scope namespace. */
60#define IDENTIFIER_GLOBAL_VALUE(NODE) \
61 (((struct lang_identifier *) (NODE))->global_value)
62/* This represents the value which the identifier has in the current
63 scope. */
64#define IDENTIFIER_LOCAL_VALUE(NODE) \
65 (((struct lang_identifier *) (NODE))->local_value)
66/* This represents the value which the identifier has as a label in
67 the current label scope. */
68#define IDENTIFIER_LABEL_VALUE(NODE) \
69 (((struct lang_identifier *) (NODE))->label_value)
70/* This records the extern decl of this identifier, if it has had one
71 at any point in this compilation. */
72#define IDENTIFIER_LIMBO_VALUE(NODE) \
73 (((struct lang_identifier *) (NODE))->limbo_value)
74/* This records the implicit function decl of this identifier, if it
75 has had one at any point in this compilation. */
76#define IDENTIFIER_IMPLICIT_DECL(NODE) \
77 (((struct lang_identifier *) (NODE))->implicit_decl)
78/* This is the last function in which we printed an "undefined variable"
79 message for this identifier. Value is a FUNCTION_DECL or null. */
80#define IDENTIFIER_ERROR_LOCUS(NODE) \
81 (((struct lang_identifier *) (NODE))->error_locus)
82
83/* In identifiers, C uses the following fields in a special way:
84 TREE_PUBLIC to record that there was a previous local extern decl.
85 TREE_USED to record that such a decl was used.
86 TREE_ADDRESSABLE to record that the address of such a decl was used. */
87
88/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
89#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1 (TYPE)
90
91/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is volatile. */
92#define C_TYPE_FIELDS_VOLATILE(TYPE) TREE_LANG_FLAG_2 (TYPE)
93
94/* In a RECORD_TYPE or UNION_TYPE or ENUMERAL_TYPE
95 nonzero if the definition of the type has already started. */
96#define C_TYPE_BEING_DEFINED(TYPE) TYPE_LANG_FLAG_0 (TYPE)
97
98/* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
99 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
100 and C_RID_YYCODE is the token number wanted by Yacc. */
101#define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_0 (ID)
102
103/* This function was declared inline. This flag controls the linkage
104 semantics of 'inline'; whether or not the function is inlined is
105 controlled by DECL_INLINE. */
106#define DECL_DECLARED_INLINE_P(NODE) \
107 (DECL_LANG_SPECIFIC (NODE)->base.declared_inline)
108
109/* In a RECORD_TYPE, a sorted array of the fields of the type. */
| 63{
64 struct c_lang_decl base;
65 /* The return types and parameter types may have variable size.
66 This is a list of any SAVE_EXPRs that need to be evaluated to
67 compute those sizes. */
68 tree pending_sizes;
69};
70
71/* Macros for access to language-specific slots in an identifier. */
72/* Each of these slots contains a DECL node or null. */
73
74/* This represents the value which the identifier has in the
75 file-scope namespace. */
76#define IDENTIFIER_GLOBAL_VALUE(NODE) \
77 (((struct lang_identifier *) (NODE))->global_value)
78/* This represents the value which the identifier has in the current
79 scope. */
80#define IDENTIFIER_LOCAL_VALUE(NODE) \
81 (((struct lang_identifier *) (NODE))->local_value)
82/* This represents the value which the identifier has as a label in
83 the current label scope. */
84#define IDENTIFIER_LABEL_VALUE(NODE) \
85 (((struct lang_identifier *) (NODE))->label_value)
86/* This records the extern decl of this identifier, if it has had one
87 at any point in this compilation. */
88#define IDENTIFIER_LIMBO_VALUE(NODE) \
89 (((struct lang_identifier *) (NODE))->limbo_value)
90/* This records the implicit function decl of this identifier, if it
91 has had one at any point in this compilation. */
92#define IDENTIFIER_IMPLICIT_DECL(NODE) \
93 (((struct lang_identifier *) (NODE))->implicit_decl)
94/* This is the last function in which we printed an "undefined variable"
95 message for this identifier. Value is a FUNCTION_DECL or null. */
96#define IDENTIFIER_ERROR_LOCUS(NODE) \
97 (((struct lang_identifier *) (NODE))->error_locus)
98
99/* In identifiers, C uses the following fields in a special way:
100 TREE_PUBLIC to record that there was a previous local extern decl.
101 TREE_USED to record that such a decl was used.
102 TREE_ADDRESSABLE to record that the address of such a decl was used. */
103
104/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
105#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1 (TYPE)
106
107/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is volatile. */
108#define C_TYPE_FIELDS_VOLATILE(TYPE) TREE_LANG_FLAG_2 (TYPE)
109
110/* In a RECORD_TYPE or UNION_TYPE or ENUMERAL_TYPE
111 nonzero if the definition of the type has already started. */
112#define C_TYPE_BEING_DEFINED(TYPE) TYPE_LANG_FLAG_0 (TYPE)
113
114/* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
115 keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
116 and C_RID_YYCODE is the token number wanted by Yacc. */
117#define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_0 (ID)
118
119/* This function was declared inline. This flag controls the linkage
120 semantics of 'inline'; whether or not the function is inlined is
121 controlled by DECL_INLINE. */
122#define DECL_DECLARED_INLINE_P(NODE) \
123 (DECL_LANG_SPECIFIC (NODE)->base.declared_inline)
124
125/* In a RECORD_TYPE, a sorted array of the fields of the type. */
|
110struct lang_type
| 126struct lang_type GTY(())
|
111{
112 int len;
| 127{
128 int len;
|
113 tree elts[1];
| 129 tree GTY((length ("%h.len"))) elts[1];
|
114};
115
116/* Record whether a type or decl was written with nonconstant size.
117 Note that TYPE_SIZE may have simplified to a constant. */
118#define C_TYPE_VARIABLE_SIZE(TYPE) TYPE_LANG_FLAG_1 (TYPE)
119#define C_DECL_VARIABLE_SIZE(TYPE) DECL_LANG_FLAG_0 (TYPE)
120
121#if 0 /* Not used. */
122/* Record whether a decl for a function or function pointer has
123 already been mentioned (in a warning) because it was called
124 but didn't have a prototype. */
125#define C_MISSING_PROTOTYPE_WARNED(DECL) DECL_LANG_FLAG_2 (DECL)
126#endif
127
128/* Store a value in that field. */
129#define C_SET_EXP_ORIGINAL_CODE(EXP, CODE) \
130 (TREE_COMPLEXITY (EXP) = (int) (CODE))
131
132/* Record whether a typedef for type `int' was actually `signed int'. */
133#define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
134
135/* For a FUNCTION_DECL, nonzero if it was defined without an explicit
136 return type. */
137#define C_FUNCTION_IMPLICIT_INT(EXP) DECL_LANG_FLAG_1 (EXP)
138
139/* Nonzero for a declaration of a built in function if there has been no
140 occasion that would declare the function in ordinary C.
141 Using the function draws a pedantic warning in this case. */
142#define C_DECL_ANTICIPATED(EXP) DECL_LANG_FLAG_3 (EXP)
143
144/* For FUNCTION_TYPE, a hidden list of types of arguments. The same as
145 TYPE_ARG_TYPES for functions with prototypes, but created for functions
146 without prototypes. */
147#define TYPE_ACTUAL_ARG_TYPES(NODE) TYPE_BINFO (NODE)
148
149
150/* in c-lang.c and objc-act.c */
151extern tree lookup_interface PARAMS ((tree));
152extern tree is_class_name PARAMS ((tree));
| 130};
131
132/* Record whether a type or decl was written with nonconstant size.
133 Note that TYPE_SIZE may have simplified to a constant. */
134#define C_TYPE_VARIABLE_SIZE(TYPE) TYPE_LANG_FLAG_1 (TYPE)
135#define C_DECL_VARIABLE_SIZE(TYPE) DECL_LANG_FLAG_0 (TYPE)
136
137#if 0 /* Not used. */
138/* Record whether a decl for a function or function pointer has
139 already been mentioned (in a warning) because it was called
140 but didn't have a prototype. */
141#define C_MISSING_PROTOTYPE_WARNED(DECL) DECL_LANG_FLAG_2 (DECL)
142#endif
143
144/* Store a value in that field. */
145#define C_SET_EXP_ORIGINAL_CODE(EXP, CODE) \
146 (TREE_COMPLEXITY (EXP) = (int) (CODE))
147
148/* Record whether a typedef for type `int' was actually `signed int'. */
149#define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
150
151/* For a FUNCTION_DECL, nonzero if it was defined without an explicit
152 return type. */
153#define C_FUNCTION_IMPLICIT_INT(EXP) DECL_LANG_FLAG_1 (EXP)
154
155/* Nonzero for a declaration of a built in function if there has been no
156 occasion that would declare the function in ordinary C.
157 Using the function draws a pedantic warning in this case. */
158#define C_DECL_ANTICIPATED(EXP) DECL_LANG_FLAG_3 (EXP)
159
160/* For FUNCTION_TYPE, a hidden list of types of arguments. The same as
161 TYPE_ARG_TYPES for functions with prototypes, but created for functions
162 without prototypes. */
163#define TYPE_ACTUAL_ARG_TYPES(NODE) TYPE_BINFO (NODE)
164
165
166/* in c-lang.c and objc-act.c */
167extern tree lookup_interface PARAMS ((tree));
168extern tree is_class_name PARAMS ((tree));
|
153extern void maybe_objc_check_decl PARAMS ((tree));
| 169extern tree objc_is_id PARAMS ((tree));
170extern void objc_check_decl PARAMS ((tree));
|
154extern void finish_file PARAMS ((void));
| 171extern void finish_file PARAMS ((void));
|
155extern int maybe_objc_comptypes PARAMS ((tree, tree, int));
156extern tree maybe_building_objc_message_expr PARAMS ((void));
157extern int recognize_objc_keyword PARAMS ((void));
| 172extern int objc_comptypes PARAMS ((tree, tree, int));
173extern tree objc_message_selector PARAMS ((void));
|
158extern tree lookup_objc_ivar PARAMS ((tree));
159
160
161/* in c-parse.in */
162extern void c_parse_init PARAMS ((void));
| 174extern tree lookup_objc_ivar PARAMS ((tree));
175
176
177/* in c-parse.in */
178extern void c_parse_init PARAMS ((void));
|
163extern void c_set_yydebug PARAMS ((int));
164extern int yyparse_1 PARAMS ((void));
| |
165
166/* in c-aux-info.c */
167extern void gen_aux_info_record PARAMS ((tree, int, int, int));
168
169/* in c-decl.c */
| 179
180/* in c-aux-info.c */
181extern void gen_aux_info_record PARAMS ((tree, int, int, int));
182
183/* in c-decl.c */
|
| 184extern int global_bindings_p PARAMS ((void));
185extern int kept_level_p PARAMS ((void));
186extern tree getdecls PARAMS ((void));
187extern void pushlevel PARAMS ((int));
188extern tree poplevel PARAMS ((int,int, int));
189extern void insert_block PARAMS ((tree));
190extern void set_block PARAMS ((tree));
191extern tree pushdecl PARAMS ((tree));
192
193extern void c_insert_default_attributes PARAMS ((tree));
|
170extern void c_init_decl_processing PARAMS ((void));
| 194extern void c_init_decl_processing PARAMS ((void));
|
| 195extern void c_dup_lang_specific_decl PARAMS ((tree));
|
171extern void c_print_identifier PARAMS ((FILE *, tree, int));
172extern tree build_array_declarator PARAMS ((tree, tree, int, int));
173extern tree build_enumerator PARAMS ((tree, tree));
| 196extern void c_print_identifier PARAMS ((FILE *, tree, int));
197extern tree build_array_declarator PARAMS ((tree, tree, int, int));
198extern tree build_enumerator PARAMS ((tree, tree));
|
174extern int c_decode_option PARAMS ((int, char **));
175extern void c_mark_varargs PARAMS ((void));
| |
176extern void check_for_loop_decls PARAMS ((void));
177extern void clear_parm_order PARAMS ((void));
178extern int complete_array_type PARAMS ((tree, tree, int));
179extern void declare_parm_level PARAMS ((int));
180extern tree define_label PARAMS ((const char *, int,
181 tree));
182extern void finish_decl PARAMS ((tree, tree, tree));
183extern tree finish_enum PARAMS ((tree, tree, tree));
184extern void finish_function PARAMS ((int, int));
185extern tree finish_struct PARAMS ((tree, tree, tree));
186extern tree get_parm_info PARAMS ((int));
187extern tree grokfield PARAMS ((const char *, int, tree, tree, tree));
188extern tree groktypename PARAMS ((tree));
189extern tree groktypename_in_parm_context PARAMS ((tree));
190extern tree implicitly_declare PARAMS ((tree));
191extern void implicit_decl_warning PARAMS ((tree));
192extern int in_parm_level_p PARAMS ((void));
193extern void keep_next_level PARAMS ((void));
| 199extern void check_for_loop_decls PARAMS ((void));
200extern void clear_parm_order PARAMS ((void));
201extern int complete_array_type PARAMS ((tree, tree, int));
202extern void declare_parm_level PARAMS ((int));
203extern tree define_label PARAMS ((const char *, int,
204 tree));
205extern void finish_decl PARAMS ((tree, tree, tree));
206extern tree finish_enum PARAMS ((tree, tree, tree));
207extern void finish_function PARAMS ((int, int));
208extern tree finish_struct PARAMS ((tree, tree, tree));
209extern tree get_parm_info PARAMS ((int));
210extern tree grokfield PARAMS ((const char *, int, tree, tree, tree));
211extern tree groktypename PARAMS ((tree));
212extern tree groktypename_in_parm_context PARAMS ((tree));
213extern tree implicitly_declare PARAMS ((tree));
214extern void implicit_decl_warning PARAMS ((tree));
215extern int in_parm_level_p PARAMS ((void));
216extern void keep_next_level PARAMS ((void));
|
194extern int kept_level_p PARAMS ((void));
| |
195extern tree lookup_name PARAMS ((tree));
196extern tree lookup_name_current_level PARAMS ((tree));
197extern void parmlist_tags_warning PARAMS ((void));
198extern void pending_xref_error PARAMS ((void));
| 217extern tree lookup_name PARAMS ((tree));
218extern tree lookup_name_current_level PARAMS ((tree));
219extern void parmlist_tags_warning PARAMS ((void));
220extern void pending_xref_error PARAMS ((void));
|
199extern void mark_c_function_context PARAMS ((struct function *));
200extern void push_c_function_context PARAMS ((struct function *));
201extern void pop_c_function_context PARAMS ((struct function *));
| 221extern void c_push_function_context PARAMS ((struct function *));
222extern void c_pop_function_context PARAMS ((struct function *));
|
202extern void pop_label_level PARAMS ((void));
203extern void push_label_level PARAMS ((void));
204extern void push_parm_decl PARAMS ((tree));
205extern tree pushdecl_top_level PARAMS ((tree));
206extern void pushtag PARAMS ((tree, tree));
207extern tree set_array_declarator_type PARAMS ((tree, tree, int));
208extern tree shadow_label PARAMS ((tree));
209extern void shadow_tag PARAMS ((tree));
210extern void shadow_tag_warned PARAMS ((tree, int));
211extern tree start_enum PARAMS ((tree));
212extern int start_function PARAMS ((tree, tree, tree));
213extern tree start_decl PARAMS ((tree, tree, int,
214 tree));
215extern tree start_struct PARAMS ((enum tree_code, tree));
216extern void store_parm_decls PARAMS ((void));
217extern tree xref_tag PARAMS ((enum tree_code, tree));
218extern tree c_begin_compound_stmt PARAMS ((void));
219extern void c_expand_deferred_function PARAMS ((tree));
220extern void c_expand_decl_stmt PARAMS ((tree));
| 223extern void pop_label_level PARAMS ((void));
224extern void push_label_level PARAMS ((void));
225extern void push_parm_decl PARAMS ((tree));
226extern tree pushdecl_top_level PARAMS ((tree));
227extern void pushtag PARAMS ((tree, tree));
228extern tree set_array_declarator_type PARAMS ((tree, tree, int));
229extern tree shadow_label PARAMS ((tree));
230extern void shadow_tag PARAMS ((tree));
231extern void shadow_tag_warned PARAMS ((tree, int));
232extern tree start_enum PARAMS ((tree));
233extern int start_function PARAMS ((tree, tree, tree));
234extern tree start_decl PARAMS ((tree, tree, int,
235 tree));
236extern tree start_struct PARAMS ((enum tree_code, tree));
237extern void store_parm_decls PARAMS ((void));
238extern tree xref_tag PARAMS ((enum tree_code, tree));
239extern tree c_begin_compound_stmt PARAMS ((void));
240extern void c_expand_deferred_function PARAMS ((tree));
241extern void c_expand_decl_stmt PARAMS ((tree));
|
| 242extern tree make_pointer_declarator PARAMS ((tree, tree));
|
221
| 243
|
222
| |
223/* in c-objc-common.c */
224extern int c_disregard_inline_limits PARAMS ((tree));
225extern int c_cannot_inline_tree_fn PARAMS ((tree *));
226extern const char *c_objc_common_init PARAMS ((const char *));
227extern int c_missing_noreturn_ok_p PARAMS ((tree));
228extern void c_objc_common_finish_file PARAMS ((void));
229extern int defer_fn PARAMS ((tree));
| 244/* in c-objc-common.c */
245extern int c_disregard_inline_limits PARAMS ((tree));
246extern int c_cannot_inline_tree_fn PARAMS ((tree *));
247extern const char *c_objc_common_init PARAMS ((const char *));
248extern int c_missing_noreturn_ok_p PARAMS ((tree));
249extern void c_objc_common_finish_file PARAMS ((void));
250extern int defer_fn PARAMS ((tree));
|
| 251extern bool c_warn_unused_global_decl PARAMS ((tree));
|
230
231#define c_build_type_variant(TYPE, CONST_P, VOLATILE_P) \
232 c_build_qualified_type ((TYPE), \
233 ((CONST_P) ? TYPE_QUAL_CONST : 0) | \
234 ((VOLATILE_P) ? TYPE_QUAL_VOLATILE : 0))
235
| 252
253#define c_build_type_variant(TYPE, CONST_P, VOLATILE_P) \
254 c_build_qualified_type ((TYPE), \
255 ((CONST_P) ? TYPE_QUAL_CONST : 0) | \
256 ((VOLATILE_P) ? TYPE_QUAL_VOLATILE : 0))
257
|
| 258#define c_sizeof_nowarn(T) c_sizeof_or_alignof_type (T, SIZEOF_EXPR, 0)
|
236/* in c-typeck.c */
237extern tree require_complete_type PARAMS ((tree));
238extern int comptypes PARAMS ((tree, tree));
| 259/* in c-typeck.c */
260extern tree require_complete_type PARAMS ((tree));
261extern int comptypes PARAMS ((tree, tree));
|
239extern tree c_sizeof_nowarn PARAMS ((tree));
| |
240extern tree c_size_in_bytes PARAMS ((tree));
| 262extern tree c_size_in_bytes PARAMS ((tree));
|
| 263extern bool c_mark_addressable PARAMS ((tree));
264extern void c_incomplete_type_error PARAMS ((tree, tree));
265extern tree c_type_promotes_to PARAMS ((tree));
|
241extern tree build_component_ref PARAMS ((tree, tree));
242extern tree build_indirect_ref PARAMS ((tree, const char *));
243extern tree build_array_ref PARAMS ((tree, tree));
244extern tree build_external_ref PARAMS ((tree, int));
245extern tree parser_build_binary_op PARAMS ((enum tree_code,
246 tree, tree));
| 266extern tree build_component_ref PARAMS ((tree, tree));
267extern tree build_indirect_ref PARAMS ((tree, const char *));
268extern tree build_array_ref PARAMS ((tree, tree));
269extern tree build_external_ref PARAMS ((tree, int));
270extern tree parser_build_binary_op PARAMS ((enum tree_code,
271 tree, tree));
|
| 272extern int c_tree_expr_nonnegative_p PARAMS ((tree));
|
247extern void readonly_warning PARAMS ((tree, const char *));
248extern tree build_conditional_expr PARAMS ((tree, tree, tree));
249extern tree build_compound_expr PARAMS ((tree));
250extern tree c_cast_expr PARAMS ((tree, tree));
251extern tree build_c_cast PARAMS ((tree, tree));
252extern tree build_modify_expr PARAMS ((tree, enum tree_code,
253 tree));
254extern void store_init_value PARAMS ((tree, tree));
255extern void error_init PARAMS ((const char *));
256extern void pedwarn_init PARAMS ((const char *));
257extern void start_init PARAMS ((tree, tree, int));
258extern void finish_init PARAMS ((void));
259extern void really_start_incremental_init PARAMS ((tree));
260extern void push_init_level PARAMS ((int));
261extern tree pop_init_level PARAMS ((int));
262extern void set_init_index PARAMS ((tree, tree));
263extern void set_init_label PARAMS ((tree));
264extern void process_init_element PARAMS ((tree));
265extern tree build_compound_literal PARAMS ((tree, tree));
266extern void pedwarn_c99 PARAMS ((const char *, ...))
267 ATTRIBUTE_PRINTF_1;
268extern tree c_start_case PARAMS ((tree));
269extern void c_finish_case PARAMS ((void));
270extern tree simple_asm_stmt PARAMS ((tree));
271extern tree build_asm_stmt PARAMS ((tree, tree, tree,
272 tree, tree));
273extern tree c_convert_parm_for_inlining PARAMS ((tree, tree, tree));
274
275/* Set to 0 at beginning of a function definition, set to 1 if
276 a return statement that specifies a return value is seen. */
277
278extern int current_function_returns_value;
279
280/* Set to 0 at beginning of a function definition, set to 1 if
281 a return statement with no argument is seen. */
282
283extern int current_function_returns_null;
284
285/* Set to 0 at beginning of a function definition, set to 1 if
286 a call to a noreturn function is seen. */
287
288extern int current_function_returns_abnormally;
289
| 273extern void readonly_warning PARAMS ((tree, const char *));
274extern tree build_conditional_expr PARAMS ((tree, tree, tree));
275extern tree build_compound_expr PARAMS ((tree));
276extern tree c_cast_expr PARAMS ((tree, tree));
277extern tree build_c_cast PARAMS ((tree, tree));
278extern tree build_modify_expr PARAMS ((tree, enum tree_code,
279 tree));
280extern void store_init_value PARAMS ((tree, tree));
281extern void error_init PARAMS ((const char *));
282extern void pedwarn_init PARAMS ((const char *));
283extern void start_init PARAMS ((tree, tree, int));
284extern void finish_init PARAMS ((void));
285extern void really_start_incremental_init PARAMS ((tree));
286extern void push_init_level PARAMS ((int));
287extern tree pop_init_level PARAMS ((int));
288extern void set_init_index PARAMS ((tree, tree));
289extern void set_init_label PARAMS ((tree));
290extern void process_init_element PARAMS ((tree));
291extern tree build_compound_literal PARAMS ((tree, tree));
292extern void pedwarn_c99 PARAMS ((const char *, ...))
293 ATTRIBUTE_PRINTF_1;
294extern tree c_start_case PARAMS ((tree));
295extern void c_finish_case PARAMS ((void));
296extern tree simple_asm_stmt PARAMS ((tree));
297extern tree build_asm_stmt PARAMS ((tree, tree, tree,
298 tree, tree));
299extern tree c_convert_parm_for_inlining PARAMS ((tree, tree, tree));
300
301/* Set to 0 at beginning of a function definition, set to 1 if
302 a return statement that specifies a return value is seen. */
303
304extern int current_function_returns_value;
305
306/* Set to 0 at beginning of a function definition, set to 1 if
307 a return statement with no argument is seen. */
308
309extern int current_function_returns_null;
310
311/* Set to 0 at beginning of a function definition, set to 1 if
312 a call to a noreturn function is seen. */
313
314extern int current_function_returns_abnormally;
315
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290/* Nonzero means `$' can be in an identifier. */
291
292extern int dollars_in_ident;
293
294/* Nonzero means allow type mismatches in conditional expressions;
295 just make their values `void'. */
296
297extern int flag_cond_mismatch;
298
299/* Nonzero means don't recognize the keyword `asm'. */
300
301extern int flag_no_asm;
302
303/* Nonzero means warn about implicit declarations. */
304
305extern int warn_implicit;
306
307/* Nonzero means warn for all old-style non-prototype function decls. */
308
309extern int warn_strict_prototypes;
310
311/* Nonzero means warn about multiple (redundant) decls for the same single
312 variable or function. */
313
314extern int warn_redundant_decls;
315
316/* Nonzero means warn about extern declarations of objects not at
317 file-scope level and about *all* declarations of functions (whether
318 extern or static) not at file-scope level. Note that we exclude
319 implicit function declarations. To get warnings about those, use
320 -Wimplicit. */
321
322extern int warn_nested_externs;
323
324/* Nonzero means warn about pointer casts that can drop a type qualifier
325 from the pointer target type. */
326
327extern int warn_cast_qual;
328
329/* Nonzero means warn when casting a function call to a type that does
330 not match the return type (e.g. (float)sqrt() or (anything*)malloc()
331 when there is no previous declaration of sqrt or malloc. */
332
333extern int warn_bad_function_cast;
334
335/* Warn about traditional constructs whose meanings changed in ANSI C. */
336
337extern int warn_traditional;
338
339/* Warn about a subscript that has type char. */
340
341extern int warn_char_subscripts;
342
343/* Warn if main is suspicious. */
344
345extern int warn_main;
346
347/* Nonzero means to allow single precision math even if we're generally
348 being traditional. */
349extern int flag_allow_single_precision;
350
351/* Warn if initializer is not completely bracketed. */
352
353extern int warn_missing_braces;
354
355/* Warn about comparison of signed and unsigned values. */
356
357extern int warn_sign_compare;
358
359/* Warn about testing equality of floating point numbers. */
360
361extern int warn_float_equal;
362
363/* Warn about multicharacter constants. */
364
365extern int warn_multichar;
366
| |
367/* Nonzero means we are reading code that came from a system header file. */
368
369extern int system_header_p;
370
| 316/* Nonzero means we are reading code that came from a system header file. */
317
318extern int system_header_p;
319
|
371/* Warn about implicit declarations. 1 = warning, 2 = error. */
372extern int mesg_implicit_function_declaration;
373
| |
374/* In c-decl.c */
| 320/* In c-decl.c */
|
375extern void finish_incomplete_decl PARAMS ((tree));
| 321extern void c_finish_incomplete_decl PARAMS ((tree));
|
376
| 322
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377extern tree static_ctors;
378extern tree static_dtors;
| 323extern GTY(()) tree static_ctors;
324extern GTY(()) tree static_dtors;
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379
380#endif /* ! GCC_C_TREE_H */
| 325
326#endif /* ! GCC_C_TREE_H */
|