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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 23_containers / vector / debug_mode_requires_reallocation-2.cc

// Copyright (C) 2008-2018 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

// NB: This issue affected only debug-mode, in pedantic mode.

// { dg-options "-D_GLIBCXX_DEBUG_PEDANTIC" }

#include <vector>
#include <algorithm>
#include <iterator>

// http://gcc.gnu.org/ml/libstdc++/2008-05/msg00046.html
void test01()
{
  typedef std::vector<unsigned> array_t;
  typedef std::back_insert_iterator<array_t> bii_t;

  array_t a;

  // Push 5 elements.
  a.push_back(0);
  a.push_back(1);
  a.push_back(2);
  a.push_back(3);
  a.push_back(4);
  // Ensure that there is enough space for other two elements.
  // (2 + 5 = 7)
  if (a.capacity() < 7)
    a.reserve(7);
  // Add two new elements.
  std::copy(a.begin(), a.begin() + 2, bii_t(a));
} 

int main()
{
  test01();
  return 0;
}