memalloc.h (1a0fda2b547365c9453523592a445dfe21266d4b) memalloc.h (7cfe69417cad6dc797729aaa60dc538aa194e1ba)
1/*-
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Kenneth Almquist.
7 *
8 * Redistribution and use in source and binary forms, with or without

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62char *makestrspace(void);
63void ungrabstackstr(char *, char *);
64
65
66
67#define stackblock() stacknxt
68#define stackblocksize() stacknleft
69#define STARTSTACKSTR(p) p = stackblock(), sstrnleft = stackblocksize()
1/*-
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Kenneth Almquist.
7 *
8 * Redistribution and use in source and binary forms, with or without

--- 53 unchanged lines hidden (view full) ---

62char *makestrspace(void);
63void ungrabstackstr(char *, char *);
64
65
66
67#define stackblock() stacknxt
68#define stackblocksize() stacknleft
69#define STARTSTACKSTR(p) p = stackblock(), sstrnleft = stackblocksize()
70#define STPUTC(c, p) (--sstrnleft >= 0? (*p++ = (c)) : (p = growstackstr(), *p++ = (c)))
70#define STPUTC(c, p) (--sstrnleft >= 0? (*p++ = (c)) : (p = growstackstr(), --sstrnleft, *p++ = (c)))
71#define CHECKSTRSPACE(n, p) { if (sstrnleft < n) p = makestrspace(); }
72#define USTPUTC(c, p) (--sstrnleft, *p++ = (c))
71#define CHECKSTRSPACE(n, p) { if (sstrnleft < n) p = makestrspace(); }
72#define USTPUTC(c, p) (--sstrnleft, *p++ = (c))
73/*
74 * STACKSTRNUL's use is where we want to be able to turn a stack
75 * (non-sentinel, character counting string) into a C string,
76 * and later pretend the NUL is not there.
77 * Note: Because of STACKSTRNUL's semantics, STACKSTRNUL cannot be used
78 * on a stack that will grabstackstr()ed.
79 */
73#define STACKSTRNUL(p) (sstrnleft == 0? (p = growstackstr(), *p = '\0') : (*p = '\0'))
74#define STUNPUTC(p) (++sstrnleft, --p)
75#define STTOPC(p) p[-1]
76#define STADJUST(amount, p) (p += (amount), sstrnleft -= (amount))
77#define grabstackstr(p) stalloc(stackblocksize() - sstrnleft)
80#define STACKSTRNUL(p) (sstrnleft == 0? (p = growstackstr(), *p = '\0') : (*p = '\0'))
81#define STUNPUTC(p) (++sstrnleft, --p)
82#define STTOPC(p) p[-1]
83#define STADJUST(amount, p) (p += (amount), sstrnleft -= (amount))
84#define grabstackstr(p) stalloc(stackblocksize() - sstrnleft)