1 2 /* : : generated by proto : : */ 3 /*********************************************************************** 4 * * 5 * This software is part of the ast package * 6 * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 7 * and is licensed under the * 8 * Common Public License, Version 1.0 * 9 * by AT&T Knowledge Ventures * 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 42 typedef struct stacktable* STACK; /* stack pointer */ 43 typedef struct stackposition STACKPOS; /* stack position */ 44 45 struct 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 52 struct stackposition /* stack position */ 53 { 54 struct stackblock* block; /* current block pointer */ 55 int index; /* index within current block */ 56 }; 57 58 struct 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 83 extern __MANGLE__ STACK stackalloc __PROTO__((int, __V_*)); 84 extern __MANGLE__ void stackfree __PROTO__((STACK)); 85 extern __MANGLE__ void stackclear __PROTO__((STACK)); 86 extern __MANGLE__ __V_* stackget __PROTO__((STACK)); 87 extern __MANGLE__ int stackpush __PROTO__((STACK, __V_*)); 88 extern __MANGLE__ int stackpop __PROTO__((STACK)); 89 extern __MANGLE__ void stacktell __PROTO__((STACK, int, STACKPOS*)); 90 91 #undef __MANGLE__ 92 #define __MANGLE__ __LINKAGE__ 93 94 #endif 95