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Diffstat (limited to 'src/boost/libs/hana/test/pair/make.cpp')
-rw-r--r-- | src/boost/libs/hana/test/pair/make.cpp | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/pair/make.cpp b/src/boost/libs/hana/test/pair/make.cpp new file mode 100644 index 000000000..3db5030a8 --- /dev/null +++ b/src/boost/libs/hana/test/pair/make.cpp @@ -0,0 +1,57 @@ +// Copyright Louis Dionne 2013-2017 +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) + +#include <boost/hana/assert.hpp> +#include <boost/hana/core/make.hpp> +#include <boost/hana/first.hpp> +#include <boost/hana/pair.hpp> +#include <boost/hana/second.hpp> +namespace hana = boost::hana; + + +struct MoveOnly { + int data_; + MoveOnly(MoveOnly const&) = delete; + MoveOnly& operator=(MoveOnly const&) = delete; + MoveOnly(int data) : data_(data) { } + MoveOnly(MoveOnly&& x) : data_(x.data_) { x.data_ = 0; } + + MoveOnly& operator=(MoveOnly&& x) + { data_ = x.data_; x.data_ = 0; return *this; } + + bool operator==(const MoveOnly& x) const { return data_ == x.data_; } +}; + +int main() { + { + hana::pair<int, short> p = hana::make_pair(3, 4); + BOOST_HANA_RUNTIME_CHECK(hana::first(p) == 3); + BOOST_HANA_RUNTIME_CHECK(hana::second(p) == 4); + } + + { + hana::pair<MoveOnly, short> p = hana::make_pair(MoveOnly{3}, 4); + BOOST_HANA_RUNTIME_CHECK(hana::first(p) == MoveOnly{3}); + BOOST_HANA_RUNTIME_CHECK(hana::second(p) == 4); + } + + { + hana::pair<MoveOnly, short> p = hana::make_pair(3, 4); + BOOST_HANA_RUNTIME_CHECK(hana::first(p) == MoveOnly{3}); + BOOST_HANA_RUNTIME_CHECK(hana::second(p) == 4); + } + + { + constexpr hana::pair<int, short> p = hana::make_pair(3, 4); + static_assert(hana::first(p) == 3, ""); + static_assert(hana::second(p) == 4, ""); + } + + // equivalence with make<pair_tag> + { + constexpr hana::pair<int, short> p = hana::make<hana::pair_tag>(3, 4); + static_assert(hana::first(p) == 3, ""); + static_assert(hana::second(p) == 4, ""); + } +} |