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/* go-strplus.c -- the go string append function.
Copyright 2009 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file. */
#include "runtime.h"
#include "arch.h"
#include "malloc.h"
String
__go_string_plus (String s1, String s2)
{
int len;
byte *retdata;
String ret;
if (s1.len == 0)
return s2;
else if (s2.len == 0)
return s1;
len = s1.len + s2.len;
retdata = runtime_mallocgc (len, 0, FlagNoScan | FlagNoZero);
__builtin_memcpy (retdata, s1.str, s1.len);
__builtin_memcpy (retdata + s1.len, s2.str, s2.len);
ret.str = retdata;
ret.len = len;
return ret;
}
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