ref: 1b7e120c090af2f8f0e17a664ba0e5e5d7f261a0
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;
}