Retro68/gcc/libstdc++-v3/testsuite/26_numerics/valarray/deduction.cc
2017-10-07 02:16:47 +02:00

43 lines
1.3 KiB
C++

// Copyright (C) 2017 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 "-std=gnu++17" }
// { dg-do compile { target c++1z } }
#include <valarray>
template<typename T, typename U> struct require_same;
template<typename T> struct require_same<T, T> { using type = void; };
template<typename T, typename U>
typename require_same<T, U>::type
check_type(U&) { }
void
test01()
{
int arr[4] = { 1, 2, 3, 4 };
std::valarray v(arr, 4);
check_type<std::valarray<int>>(v);
std::valarray v2 = v;
check_type<std::valarray<int>>(v2);
std::valarray v3 = std::move(v);
check_type<std::valarray<int>>(v3);
}