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40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03
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// <utility>
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// template <class T1, class T2> struct pair
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// template <class... Args1, class... Args2>
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// pair(piecewise_construct_t, tuple<Args1...> first_args,
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// tuple<Args2...> second_args);
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#include <cassert>
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#include <tuple>
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#include <utility>
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#include "test_macros.h"
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int main(int, char**)
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{
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{
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typedef std::pair<int, int*> P1;
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typedef std::pair<int*, int> P2;
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typedef std::pair<P1, P2> P3;
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P3 p3(std::piecewise_construct, std::tuple<int, int*>(3, nullptr),
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std::tuple<int*, int>(nullptr, 4));
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assert(p3.first == P1(3, nullptr));
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assert(p3.second == P2(nullptr, 4));
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}
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return 0;
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}
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