mirror of
https://github.com/autc04/Retro68.git
synced 2024-07-28 06:29:30 +00:00
69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
|
// { dg-options "-std=c++11" }
|
||
|
// { dg-do compile }
|
||
|
|
||
|
// Copyright (C) 2012-2014 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 <type_traits>
|
||
|
#include <array>
|
||
|
#include <utility>
|
||
|
|
||
|
template<typename... Args>
|
||
|
constexpr
|
||
|
std::array<typename std::common_type<Args...>::type,
|
||
|
sizeof...(Args)>
|
||
|
make_array(Args&&... args) // { dg-error "invalid use" }
|
||
|
{
|
||
|
typedef typename std::common_type<Args...>::type CT;
|
||
|
return std::array<CT, sizeof...(Args)>{static_cast<CT>
|
||
|
(std::forward<Args>(args))...};
|
||
|
}
|
||
|
|
||
|
void test01()
|
||
|
{
|
||
|
constexpr auto a1 = make_array(0);
|
||
|
constexpr auto a2 = make_array(0, 1.2);
|
||
|
constexpr auto a3 = make_array(5, true, 3.1415f, 'c');
|
||
|
|
||
|
int i{};
|
||
|
double d{1.2};
|
||
|
float f{3.1415f};
|
||
|
|
||
|
auto b1 = make_array(i);
|
||
|
auto b2 = make_array(i, 1.2);
|
||
|
auto b3 = make_array(i, d);
|
||
|
auto b4 = make_array(0, d);
|
||
|
auto b5 = make_array(i, true, f, 'c');
|
||
|
|
||
|
static_assert(std::is_same<decltype(a1), const std::array<int, 1>>(), "");
|
||
|
static_assert(std::is_same<decltype(a2), const std::array<double, 2>>(), "");
|
||
|
static_assert(std::is_same<decltype(a3), const std::array<float, 4>>(), "");
|
||
|
|
||
|
static_assert(std::is_same<decltype(b1), std::array<int, 1>>(), "");
|
||
|
static_assert(std::is_same<decltype(b2), std::array<double, 2>>(), "");
|
||
|
static_assert(std::is_same<decltype(b3), std::array<double, 2>>(), "");
|
||
|
static_assert(std::is_same<decltype(b4), std::array<double, 2>>(), "");
|
||
|
static_assert(std::is_same<decltype(b5), std::array<float, 4>>(), "");
|
||
|
}
|
||
|
|
||
|
void test02()
|
||
|
{
|
||
|
make_array(); // { dg-error "no matching function" }
|
||
|
}
|
||
|
// { dg-prune-output "substitution" }
|
||
|
// { dg-prune-output "include" }
|