52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <utility>
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// template <class T1, class T2> pair<V1, V2> make_pair(T1&&, T2&&);
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#include <utility>
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#include <memory>
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#include <cassert>
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int main()
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{
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{
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typedef std::pair<int, short> P1;
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P1 p1 = std::make_pair(3, 4);
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assert(p1.first == 3);
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assert(p1.second == 4);
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}
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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{
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typedef std::pair<std::unique_ptr<int>, short> P1;
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P1 p1 = std::make_pair(std::unique_ptr<int>(new int(3)), 4);
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assert(*p1.first == 3);
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assert(p1.second == 4);
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}
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{
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typedef std::pair<std::unique_ptr<int>, short> P1;
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P1 p1 = std::make_pair(nullptr, 4);
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assert(p1.first == nullptr);
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assert(p1.second == 4);
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}
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#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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#if _LIBCPP_STD_VER > 11
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{
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typedef std::pair<int, short> P1;
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constexpr P1 p1 = std::make_pair(3, 4);
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static_assert(p1.first == 3, "");
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static_assert(p1.second == 4, "");
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}
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#endif
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}
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