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New function: xalloc_and_zero()

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This commit is contained in:
Ivo Timmermans 2000-10-20 16:43:13 +00:00
parent 4059151732
commit 699e159a7a
2 changed files with 16 additions and 0 deletions
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1
lib/xalloc.h
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@ -19,5 +19,6 @@ extern char *const xalloc_msg_memory_exhausted;
extern void (*xalloc_fail_func) (); extern void (*xalloc_fail_func) ();
void *xmalloc PARAMS ((size_t n)); void *xmalloc PARAMS ((size_t n));
void *xmalloc_and_zero PARAMS ((size_t n));
void *xcalloc PARAMS ((size_t n, size_t s)); void *xcalloc PARAMS ((size_t n, size_t s));
void *xrealloc PARAMS ((void *p, size_t n)); void *xrealloc PARAMS ((void *p, size_t n));

15
lib/xmalloc.c
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@ -94,6 +94,21 @@ xmalloc (n)
return p; return p;
} }
/* Allocate N bytes of memory dynamically, and set it all to zero. */
void *
xmalloc_and_zero (n)
size_t n;
{
void *p;
p = malloc (n);
if (p == 0)
xalloc_fail ((int)n);
memset (p, '\0', n);
return p;
}
/* Change the size of an allocated block of memory P to N bytes, /* Change the size of an allocated block of memory P to N bytes,
with error checking. with error checking.
If P is NULL, run xmalloc. */ If P is NULL, run xmalloc. */