96 lines
3.4 KiB
C
Executable File
96 lines
3.4 KiB
C
Executable File
/*-
|
|
* Copyright (c) 1991 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Kenneth Almquist.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)memalloc.h 5.1 (Berkeley) 3/7/91
|
|
*/
|
|
|
|
struct stackmark {
|
|
struct stack_block *stackp;
|
|
char *stacknxt;
|
|
int stacknleft;
|
|
};
|
|
|
|
|
|
extern char *stacknxt;
|
|
extern int stacknleft;
|
|
extern int sstrnleft;
|
|
extern int herefd;
|
|
|
|
#ifdef __STDC__
|
|
pointer ckmalloc(int);
|
|
pointer ckrealloc(pointer, int);
|
|
void free(pointer); /* defined in C library */
|
|
char *savestr(char *);
|
|
pointer stalloc(int);
|
|
void stunalloc(pointer);
|
|
void setstackmark(struct stackmark *);
|
|
void popstackmark(struct stackmark *);
|
|
void growstackblock(void);
|
|
void grabstackblock(int);
|
|
char *growstackstr(void);
|
|
char *makestrspace(void);
|
|
void ungrabstackstr(char *, char *);
|
|
#else
|
|
pointer ckmalloc();
|
|
pointer ckrealloc();
|
|
void free(); /* defined in C library */
|
|
char *savestr();
|
|
pointer stalloc();
|
|
void stunalloc();
|
|
void setstackmark();
|
|
void popstackmark();
|
|
void growstackblock();
|
|
void grabstackblock();
|
|
char *growstackstr();
|
|
char *makestrspace();
|
|
void ungrabstackstr();
|
|
#endif
|
|
|
|
|
|
|
|
#define stackblock() stacknxt
|
|
#define stackblocksize() stacknleft
|
|
#define STARTSTACKSTR(p) p = stackblock(), sstrnleft = stackblocksize()
|
|
#define STPUTC(c, p) (--sstrnleft >= 0? (*p++ = (c)) : (p = growstackstr(), *p++ = (c)))
|
|
#define CHECKSTRSPACE(n, p) if (sstrnleft < n) p = makestrspace(); else
|
|
#define USTPUTC(c, p) (--sstrnleft, *p++ = (c))
|
|
#define STACKSTRNUL(p) (sstrnleft == 0? (p = growstackstr(), *p = '\0') : (*p = '\0'))
|
|
#define STUNPUTC(p) (++sstrnleft, --p)
|
|
#define STTOPC(p) p[-1]
|
|
#define STADJUST(amount, p) (p += (amount), sstrnleft -= (amount))
|
|
#define grabstackstr(p) stalloc(stackblocksize() - sstrnleft)
|
|
|
|
#define ckfree(p) free((pointer)(p))
|