ref: 03d870e0283299404b0eb46689d13f8538e83a2f
dir: /sys/src/libString/s_unique.c/
#include <u.h>
#include <libc.h>
#include "String.h"
String*
s_unique(String *s)
{
String *p;
if(s->ref > 1){
p = s;
s = s_clone(p);
s_free(p);
}
return s;
}