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 } 35
