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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-string.h"

#include "go-panic.h"

#include "runtime.h"

#include "arch.h"

#include "malloc.h"

struct __go_string

__go_string_slice (struct __go_string s, int start, int end)

{

  int len;

  struct __go_string ret;

  len = s.__length;

  if (end == -1)

    end = len;

  if (start > len || end < start || end > len)

    runtime_panicstring ("string index out of bounds");

  ret.__data = s.__data + start;

  ret.__length = end - start;

  return ret;

}