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/* go-strslice.c -- the go string slice 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 "go-panic.h"
#include "runtime.h"
#include "arch.h"
#include "malloc.h"
String
__go_string_slice (String s, intgo start, intgo end)
{
intgo len;
String ret;
len = s.len;
if (end == -1)
end = len;
if (start > len || end < start || end > len)
runtime_panicstring ("string index out of bounds");
ret.str = s.str + start;
ret.len = end - start;
return ret;
}
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