ref: 215b67ff3d630c56418026dda7ae68f23111c4a5
dir: /sys/src/libc/port/strcpy.c/
#include <u.h> #include <libc.h> #define N 10000 char* strcpy(char *s1, char *s2) { char *os1; os1 = s1; while(!memccpy(s1, s2, 0, N)) { s1 += N; s2 += N; } return os1; }