stk.h revision da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968
/* : : generated by proto : : */
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2007 AT&T Knowledge Ventures *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Knowledge Ventures *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
/*
* David Korn
* AT&T Research
*
* Interface definitions for a stack-like storage library
*
*/
#ifndef _STK_H
#if !defined(__PROTO__)
#include <prototyped.h>
#endif
#if !defined(__LINKAGE__)
#define __LINKAGE__ /* 2004-08-11 transition */
#endif
#define _STK_H
#include <sfio.h>
#define _Stk_data _Stak_data
#define stkstd (&_Stk_data)
#define Stk_t Sfio_t
#define STK_SMALL 1 /* small stkopen stack */
#define STK_NULL 2 /* return NULL on overflow */
#define stkptr(sp,n) ((char*)((sp)->_data)+(n))
#define stktop(sp) ((char*)(sp)->_next)
#define stktell(sp) ((sp)->_next-(sp)->_data)
#define stkseek(sp,n) ((n)==0?(char*)((sp)->_next=(sp)->_data):_stkseek(sp,n))
#if _BLD_ast && defined(__EXPORT__)
#undef __MANGLE__
#define __MANGLE__ __LINKAGE__ __EXPORT__
#endif
#if !_BLD_ast && defined(__IMPORT__)
#undef __MANGLE__
#define __MANGLE__ __LINKAGE__ __IMPORT__
#endif
extern __MANGLE__ Sfio_t _Stk_data;
#undef __MANGLE__
#define __MANGLE__ __LINKAGE__
#if _BLD_ast && defined(__EXPORT__)
#undef __MANGLE__
#define __MANGLE__ __LINKAGE__ __EXPORT__
#endif
extern __MANGLE__ Stk_t* stkopen __PROTO__((int));
extern __MANGLE__ Stk_t* stkinstall __PROTO__((Stk_t*, char*(*)(int)));
extern __MANGLE__ int stkclose __PROTO__((Stk_t*));
extern __MANGLE__ int stklink __PROTO__((Stk_t*));
extern __MANGLE__ char* stkalloc __PROTO__((Stk_t*, unsigned));
extern __MANGLE__ char* stkcopy __PROTO__((Stk_t*,const char*));
extern __MANGLE__ char* stkset __PROTO__((Stk_t*, char*, unsigned));
extern __MANGLE__ char* _stkseek __PROTO__((Stk_t*, unsigned));
extern __MANGLE__ char* stkfreeze __PROTO__((Stk_t*, unsigned));
#undef __MANGLE__
#define __MANGLE__ __LINKAGE__
#endif