35 lines
714 B
C
35 lines
714 B
C
|
/* calloc -- allocate memory which has been initialized to zero.
|
||
|
This function is in the public domain. */
|
||
|
|
||
|
/*
|
||
|
|
||
|
@deftypefn Supplemental void* calloc (size_t @var{nelem}, size_t @var{elsize})
|
||
|
|
||
|
Uses @code{malloc} to allocate storage for @var{nelem} objects of
|
||
|
@var{elsize} bytes each, then zeros the memory.
|
||
|
|
||
|
@end deftypefn
|
||
|
|
||
|
*/
|
||
|
|
||
|
#include "ansidecl.h"
|
||
|
#include <stddef.h>
|
||
|
|
||
|
/* For systems with larger pointers than ints, this must be declared. */
|
||
|
PTR malloc (size_t);
|
||
|
void bzero (PTR, size_t);
|
||
|
|
||
|
PTR
|
||
|
calloc (size_t nelem, size_t elsize)
|
||
|
{
|
||
|
register PTR ptr;
|
||
|
|
||
|
if (nelem == 0 || elsize == 0)
|
||
|
nelem = elsize = 1;
|
||
|
|
||
|
ptr = malloc (nelem * elsize);
|
||
|
if (ptr) bzero (ptr, nelem * elsize);
|
||
|
|
||
|
return ptr;
|
||
|
}
|