libiberty/memmove.c

   1 /* Wrapper to implement ANSI C's memmove using BSD's bcopy. */
   2 /* This function is in the public domain.  --Per Bothner. */
   3
   4 /*
   5
   6 @deftypefn Supplemental void* memmove (void *@var{from}, const void *@var{to}, size_t @var{count})
   7
   8 Copies @var{count} bytes from memory area @var{from} to memory area
   9 @var{to}, returning a pointer to @var{to}.
  10
  11 @end deftypefn
  12
  13 */
  14
  15 #include <ansidecl.h>
  16 #ifdef ANSI_PROTOTYPES
  17 #include <stddef.h>
  18 #else
  19 #define size_t unsigned long
  20 #endif
  21
  22 void bcopy (const void*, void*, size_t);
  23
  24 PTR
  25 memmove (PTR s1, const PTR s2, size_t n)
  26 {
  27   bcopy (s2, s1, n);
  28   return s1;
  29 }