diff options
Diffstat (limited to 'test/std/utilities/tuple/tuple.tuple/tuple.creation/make_tuple.pass.cpp')
-rw-r--r-- | test/std/utilities/tuple/tuple.tuple/tuple.creation/make_tuple.pass.cpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/test/std/utilities/tuple/tuple.tuple/tuple.creation/make_tuple.pass.cpp b/test/std/utilities/tuple/tuple.tuple/tuple.creation/make_tuple.pass.cpp new file mode 100644 index 0000000000000..2ee96dc7ebf45 --- /dev/null +++ b/test/std/utilities/tuple/tuple.tuple/tuple.creation/make_tuple.pass.cpp @@ -0,0 +1,52 @@ +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// <tuple> + +// template <class... Types> class tuple; + +// template<class... Types> +// tuple<VTypes...> make_tuple(Types&&... t); + +// UNSUPPORTED: c++98, c++03 + +#include <tuple> +#include <functional> +#include <cassert> + +int main() +{ + { + int i = 0; + float j = 0; + std::tuple<int, int&, float&> t = std::make_tuple(1, std::ref(i), + std::ref(j)); + assert(std::get<0>(t) == 1); + assert(std::get<1>(t) == 0); + assert(std::get<2>(t) == 0); + i = 2; + j = 3.5; + assert(std::get<0>(t) == 1); + assert(std::get<1>(t) == 2); + assert(std::get<2>(t) == 3.5); + std::get<1>(t) = 0; + std::get<2>(t) = 0; + assert(i == 0); + assert(j == 0); + } +#if _LIBCPP_STD_VER > 11 + { + constexpr auto t1 = std::make_tuple(0, 1, 3.14); + constexpr int i1 = std::get<1>(t1); + constexpr double d1 = std::get<2>(t1); + static_assert (i1 == 1, "" ); + static_assert (d1 == 3.14, "" ); + } +#endif +} |