ref: 392ca817baba3f2ee2cdb9170a755072136b9669
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;
}