src/lib/memmove.c

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