1
2/* : : generated by proto : : */
3/***********************************************************************
4*                                                                      *
5*               This software is part of the ast package               *
6*          Copyright (c) 1985-2010 AT&T Intellectual Property          *
7*                      and is licensed under the                       *
8*                  Common Public License, Version 1.0                  *
9*                    by AT&T Intellectual Property                     *
10*                                                                      *
11*                A copy of the License is available at                 *
12*            http://www.opensource.org/licenses/cpl1.0.txt             *
13*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
14*                                                                      *
15*              Information and Software Systems Research               *
16*                            AT&T Research                             *
17*                           Florham Park NJ                            *
18*                                                                      *
19*                 Glenn Fowler <gsf@research.att.com>                  *
20*                  David Korn <dgk@research.att.com>                   *
21*                   Phong Vo <kpv@research.att.com>                    *
22*                                                                      *
23***********************************************************************/
24
25/*
26 * Glenn Fowler
27 * AT&T Research
28 *
29 * homogenous stack routine definitions
30 */
31
32#ifndef _STACK_H
33#if !defined(__PROTO__)
34#include <prototyped.h>
35#endif
36#if !defined(__LINKAGE__)
37#define __LINKAGE__		/* 2004-08-11 transition */
38#endif
39
40#define _STACK_H
41
42typedef struct stacktable* STACK;	/* stack pointer		*/
43typedef struct stackposition STACKPOS;	/* stack position		*/
44
45struct stackblock			/* stack block cell		*/
46{
47	__V_**		  stack;	/* actual stack			*/
48	struct stackblock* prev;	/* previous block in list	*/
49	struct stackblock* next;	/* next block in list		*/
50};
51
52struct stackposition			/* stack position		*/
53{
54	struct stackblock* block;	/* current block pointer	*/
55	int		index;		/* index within current block	*/
56};
57
58struct stacktable			/* stack information		*/
59{
60	struct stackblock* blocks;	/* stack table blocks		*/
61	__V_*		error;		/* error return value		*/
62	int		size;		/* size of each block		*/
63	STACKPOS	position;	/* current stack position	*/
64};
65
66/*
67 * map old names to new
68 */
69
70#define mkstack		stackalloc
71#define rmstack		stackfree
72#define clrstack	stackclear
73#define getstack	stackget
74#define pushstack	stackpush
75#define popstack	stackpop
76#define posstack	stacktell
77
78#if _BLD_ast && defined(__EXPORT__)
79#undef __MANGLE__
80#define __MANGLE__ __LINKAGE__		__EXPORT__
81#endif
82
83extern __MANGLE__ STACK		stackalloc __PROTO__((int, __V_*));
84extern __MANGLE__ void		stackfree __PROTO__((STACK));
85extern __MANGLE__ void		stackclear __PROTO__((STACK));
86extern __MANGLE__ __V_*		stackget __PROTO__((STACK));
87extern __MANGLE__ int		stackpush __PROTO__((STACK, __V_*));
88extern __MANGLE__ int		stackpop __PROTO__((STACK));
89extern __MANGLE__ void		stacktell __PROTO__((STACK, int, STACKPOS*));
90
91#undef __MANGLE__
92#define __MANGLE__ __LINKAGE__
93
94#endif
95