gcc/libstdc++-v3/testsuite/26_numerics/valarray/swap.cc

// { dg-options "-std=gnu++11" }

// Copyright (C) 2011-2014 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/>.

#include <valarray>
#include <testsuite_hooks.h>

void test01()
{
  bool test __attribute__((unused)) = true;

  std::valarray<int> a(1, 1), b(-1, 2);
  b.swap(a);
  VERIFY( b.size() == 1 && b[0] == 1
	  && a.size() == 2 && a[0] == -1 && a[1] == -1 );
}

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