libiberty/memset.c

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