40 lines
1.0 KiB
C++
40 lines
1.0 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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// template <size_t I, class... Types>
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// typename tuple_element<I, tuple<Types...> >::type const&
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// get(const tuple<Types...>& t);
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#include <tuple>
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#include <string>
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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::tuple<double&, std::string, int> T;
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double d = 1.5;
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const T t(d, "high", 5);
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assert(std::get<0>(t) == 1.5);
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assert(std::get<1>(t) == "high");
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assert(std::get<2>(t) == 5);
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std::get<0>(t) = 2.5;
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assert(std::get<0>(t) == 2.5);
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assert(std::get<1>(t) == "high");
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assert(std::get<2>(t) == 5);
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assert(d == 2.5);
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std::get<1>(t) = "four";
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}
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}
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