ref: 36c9a2489d1f0e3d4e6a890bb86edde64d719acb
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;
}