memset.c revision 169696
1/* memset 2 This implementation is in the public domain. */ 3 4/* 5 6@deftypefn Supplemental void* memset (void *@var{s}, int @var{c}, size_t @var{count}) 7 8Sets the first @var{count} bytes of @var{s} to the constant byte 9@var{c}, returning a pointer to @var{s}. 10 11@end deftypefn 12 13*/ 14 15#include <ansidecl.h> 16#include <stddef.h> 17 18PTR 19memset (PTR dest, register int val, register size_t len) 20{ 21 register unsigned char *ptr = (unsigned char*)dest; 22 while (len-- > 0) 23 *ptr++ = val; 24 return dest; 25} 26