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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 26_numerics / valarray / 28277.cc

// 2006-07-15  Paolo Carlini  <pcarlini@suse.de>

// Copyright (C) 2006-2021 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/>.

// { dg-options "-DMAX_SIZE=5000" { target simulator } }

#ifndef MAX_SIZE
#define MAX_SIZE 5000000
#endif

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

// libstdc++/28277
void test01()
{
  const std::valarray<int> v1(1, MAX_SIZE);

  const std::valarray<int> v2 = v1.shift(1);
  VERIFY( v2.size() == v1.size() );
  VERIFY( v2[v1.size() - 1] == 0 );

  const std::valarray<int> v3 = v2.cshift(-1);
  VERIFY( v3.size() == v2.size() );
  VERIFY( v3[0] == 0 );
}

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