src/lib/memmove.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <string.h>
   4 void *memmove(void *vdest, const void *vsrc, size_t count)
   5 {
   6         const char *src = vsrc;
   7         char *dest = vdest;
   8
   9         if (dest <= src) {
  10                 while (count--)
  11                         *dest++ = *src++;
  12         } else {
  13                 src  += count - 1;
  14                 dest += count - 1;
  15                 while (count--)
  16                         *dest-- = *src--;
  17         }
  18         return vdest;
  19 }