ref: 69af2676b0c62a79370158b9a6ee1263d614ac88
dir: /sys/src/libc/port/runestrecpy.c/
#include <u.h> #include <libc.h> Rune* runestrecpy(Rune *s1, Rune *es1, Rune *s2) { if(s1 >= es1) return s1; while(*s1++ = *s2++){ if(s1 == es1){ *--s1 = '\0'; break; } } return s1; }