calloc.c revision 1.1.1.2
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. */ 19void *malloc (size_t); 20void bzero (void *, size_t); 21 22void * 23calloc (size_t nelem, size_t elsize) 24{ 25 register void *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