[deliverable/binutils-gdb.git] / libiberty / calloc.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;
}
Commit	Line	Data
	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
	8	Uses @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. */
	19	PTR malloc (size_t);
	20	void bzero (PTR, size_t);
	21
	22	PTR
	23	calloc (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	}