/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include "String.h" String*s_reset(String *s){	if(s != nil){		s = s_unique(s);		s->ptr = s->base;		*s->ptr = '\0';	} else		s = s_new();	return s;} String*s_restart(String *s){	s = s_unique(s);	s->ptr = s->base;	return s;}