ref: 3a606d896c2a6905f5c25ed74b0dcda663caf4b4
dir: /sys/src/cmd/unix/drawterm/libc/runestrdup.c/
#include <u.h>
#include <libc.h>
Rune*
runestrdup(Rune *s)
{
Rune *ns;
ns = malloc(sizeof(Rune)*(runestrlen(s) + 1));
if(ns == 0)
return 0;
return runestrcpy(ns, s);
}