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Diffstat (limited to 'src/boost/libs/hof/test/lift.cpp')
-rw-r--r-- | src/boost/libs/hof/test/lift.cpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/boost/libs/hof/test/lift.cpp b/src/boost/libs/hof/test/lift.cpp new file mode 100644 index 00000000..cae10578 --- /dev/null +++ b/src/boost/libs/hof/test/lift.cpp @@ -0,0 +1,58 @@ +/*============================================================================= + Copyright (c) 2017 Paul Fultz II + lift.cpp + Distributed under the Boost Software License, Version 1.0. (See accompanying + file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +==============================================================================*/ +#include "test.hpp" +#include <boost/hof/lift.hpp> +#include <boost/hof/function.hpp> +#include <boost/hof/detail/move.hpp> +#include <tuple> +#include <algorithm> + +template<class T, class U> +constexpr T sum(T x, U y) BOOST_HOF_RETURNS_DEDUCE_NOEXCEPT(x+y) +{ + return x + y; +} + +BOOST_HOF_LIFT_CLASS(max_f, std::max); +BOOST_HOF_LIFT_CLASS(sum_f, sum); + +#if BOOST_HOF_HAS_NOEXCEPT_DEDUCTION +BOOST_HOF_TEST_CASE() +{ + static_assert(noexcept(sum_f()(1, 2)), "noexcept lift"); + static_assert(!noexcept(sum_f()(std::string(), std::string())), "noexcept lift"); +} +#endif + +BOOST_HOF_TEST_CASE() +{ + BOOST_HOF_TEST_CHECK(max_f()(3, 4) == std::max(3, 4)); + + BOOST_HOF_TEST_CHECK(sum_f()(1, 2) == 3); + BOOST_HOF_STATIC_TEST_CHECK(sum_f()(1, 2) == 3); +} + +#if BOOST_HOF_HAS_GENERIC_LAMBDA +BOOST_HOF_TEST_CASE() +{ + auto my_max = BOOST_HOF_LIFT(std::max); + BOOST_HOF_TEST_CHECK(my_max(3, 4) == std::max(3, 4)); + + BOOST_HOF_TEST_CHECK(BOOST_HOF_LIFT(std::max)(3, 4) == std::max(3, 4)); + BOOST_HOF_TEST_CHECK(BOOST_HOF_LIFT(sum)(1, 2) == 3); +} + +BOOST_HOF_STATIC_FUNCTION(psum) = BOOST_HOF_LIFT(sum); +BOOST_HOF_STATIC_FUNCTION(pmax) = BOOST_HOF_LIFT(std::max); + +BOOST_HOF_TEST_CASE() +{ + BOOST_HOF_TEST_CHECK(pmax(3, 4) == std::max(3, 4)); + + BOOST_HOF_TEST_CHECK(psum(1, 2) == 3); +} +#endif |