1/* calloc -- allocate memory which has been initialized to zero.
2   This function is in the public domain. */
3
4/*
5
6@deftypefn Supplemental void* calloc (size_t @var{nelem}, size_t @var{elsize})
7
8Uses @code{malloc} to allocate storage for @var{nelem} objects of
9@var{elsize} bytes each, then zeros the memory.
10
11@end deftypefn
12
13*/
14
15#include "ansidecl.h"
16#include <stddef.h>
17
18/* For systems with larger pointers than ints, this must be declared.  */
19PTR malloc (size_t);
20void bzero (PTR, size_t);
21
22PTR
23calloc (size_t nelem, size_t elsize)
24{
25  register PTR ptr;
26
27  if (nelem == 0 || elsize == 0)
28    nelem = elsize = 1;
29
30  ptr = malloc (nelem * elsize);
31  if (ptr) bzero (ptr, nelem * elsize);
32
33  return ptr;
34}
35