forked from OSchip/llvm-project
64 lines
1.5 KiB
C++
64 lines
1.5 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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// constexpr tuple();
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#include <tuple>
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#include <string>
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#include <cassert>
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#include "../DefaultOnly.h"
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int main()
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{
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{
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std::tuple<> t;
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}
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{
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std::tuple<int> t;
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assert(std::get<0>(t) == 0);
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}
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{
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std::tuple<int, char*> t;
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assert(std::get<0>(t) == 0);
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assert(std::get<1>(t) == nullptr);
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}
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{
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std::tuple<int, char*, std::string> t;
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assert(std::get<0>(t) == 0);
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assert(std::get<1>(t) == nullptr);
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assert(std::get<2>(t) == "");
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}
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{
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std::tuple<int, char*, std::string, DefaultOnly> t;
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assert(std::get<0>(t) == 0);
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assert(std::get<1>(t) == nullptr);
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assert(std::get<2>(t) == "");
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assert(std::get<3>(t) == DefaultOnly());
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}
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#ifndef _LIBCPP_HAS_NO_CONSTEXPR
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{
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constexpr std::tuple<> t;
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}
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{
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constexpr std::tuple<int> t;
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assert(std::get<0>(t) == 0);
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}
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{
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constexpr std::tuple<int, char*> t;
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assert(std::get<0>(t) == 0);
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assert(std::get<1>(t) == nullptr);
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}
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#endif
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}
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