20 char *strcpy(char *dst, const char *src)  in strcpy()  argument
22   char *dst0 = dst;  in strcpy()
25   int misaligned = ((uintptr_t)dst | (uintptr_t)src) & (sizeof (long) - 1);  in strcpy()
28       long *ldst = (long *)dst;  in strcpy()
34       dst = (char *)ldst;  in strcpy()
40       if (!(*dst++ = c0)) return dst0;  in strcpy()
41       if (!(*dst++ = c1)) return dst0;  in strcpy()
43       if (!(*dst++ = c2)) return dst0;  in strcpy()
46       if (!(*dst++ = c3)) return dst0;  in strcpy()
48       if (!(*dst++ = c4)) return dst0;  in strcpy()
50       if (!(*dst++ = c5)) return dst0;  in strcpy()
51       if (!(*dst++ = c6)) return dst0;  in strcpy()
54       *dst++ = 0;  in strcpy()
64       dst++;  in strcpy()
65       *(dst - 1) = ch;  in strcpy()