64 lines
1.4 KiB
C++
64 lines
1.4 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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// <tuple>
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// template <class... Types> class tuple;
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// tuple(const tuple& u) = default;
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#include <tuple>
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#include <string>
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#include <cassert>
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struct Empty {};
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int main()
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{
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{
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typedef std::tuple<> T;
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T t0;
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T t = t0;
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}
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{
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typedef std::tuple<int> T;
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T t0(2);
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T t = t0;
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assert(std::get<0>(t) == 2);
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}
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{
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typedef std::tuple<int, char> T;
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T t0(2, 'a');
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T t = t0;
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assert(std::get<0>(t) == 2);
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assert(std::get<1>(t) == 'a');
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}
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{
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typedef std::tuple<int, char, std::string> T;
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const T t0(2, 'a', "some text");
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T t = t0;
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assert(std::get<0>(t) == 2);
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assert(std::get<1>(t) == 'a');
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assert(std::get<2>(t) == "some text");
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}
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#if _LIBCPP_STD_VER > 11
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{
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typedef std::tuple<int> T;
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constexpr T t0(2);
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constexpr T t = t0;
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static_assert(std::get<0>(t) == 2, "");
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}
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{
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typedef std::tuple<Empty> T;
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constexpr T t0;
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constexpr T t = t0;
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}
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#endif
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}
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