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