ref: 3aa27c3da9cf49c6f8082f09a295b7cf241c9a65
dir: /src/libc/string/memmove.c/
#include <string.h> #undef memmove void * memmove(void *dst, const void *src, size_t n) { char *d = dst, *s = (char *) src; if (d < s) { while (n-- > 0) *d++ = *s++; } else { s += n-1, d += n-1; while (n-- > 0) *d-- = *s--; } return dst; }