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* cppalloc.c (xcalloc): Re-implement using calloc, rather than malloc+bzero. 

From-SVN: r9319
This commit is contained in:
Per Bothner 1995-04-06 23:19:22 -07:00
parent 746a9efa80
commit 56c667474e
1 changed files with 7 additions and 26 deletions
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33
gcc/cppalloc.c
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@ -45,10 +45,9 @@ xrealloc (old, size)
unsigned size;
{
register char *ptr = (char *) realloc (old, size);
if (ptr != 0) return (ptr);
memory_full ();
/*NOTREACHED*/
return 0;
if (ptr == 0)
memory_full ();
return ptr;
}
char *
@ -56,26 +55,8 @@ xcalloc (number, size)
unsigned number, size;
{
register unsigned total = number * size;
register char *ptr = (char *) malloc (total);
if (ptr != 0) {
if (total > 100)
bzero (ptr, total);
else {
/* It's not too long, so loop, zeroing by longs.
It must be safe because malloc values are always well aligned. */
register long *zp = (long *) ptr;
register long *zl = (long *) (ptr + total - 4);
register int i = total - 4;
while (zp < zl)
*zp++ = 0;
if (i < 0)
i = 0;
while (i < total)
ptr[i++] = 0;
}
return ptr;
}
memory_full ();
/*NOTREACHED*/
return 0;
register char *ptr = (char *) calloc (number, size);
if (ptr == 0)
memory_full ();
return ptr;
}