104 lines
2.1 KiB
C++
104 lines
2.1 KiB
C++
/*=============================================================================
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Copyright (c) 2017 Paul Fultz II
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lambda.cpp
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#include <boost/hof/lambda.hpp>
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#include <boost/hof/first_of.hpp>
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#include <boost/hof/partial.hpp>
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#include <boost/hof/infix.hpp>
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#include <boost/hof/pipable.hpp>
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#include <memory>
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#include "test.hpp"
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static constexpr auto add_one = BOOST_HOF_STATIC_LAMBDA(int x)
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{
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return x + 1;
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};
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template<class F>
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struct wrapper : F
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{
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BOOST_HOF_INHERIT_CONSTRUCTOR(wrapper, F)
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};
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template<class T>
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constexpr wrapper<T> wrap(T x)
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{
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return x;
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}
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BOOST_HOF_TEST_CASE()
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{
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BOOST_HOF_TEST_CHECK(3 == add_one(2));
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}
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BOOST_HOF_TEST_CASE()
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{
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constexpr auto add_one_again = add_one;
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BOOST_HOF_TEST_CHECK(3 == add_one_again(2));
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}
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BOOST_HOF_TEST_CASE()
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{
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constexpr auto add_one_again = wrap(add_one);
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BOOST_HOF_TEST_CHECK(3 == add_one_again(2));
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}
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namespace test_static {
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BOOST_HOF_STATIC_LAMBDA_FUNCTION(add_one) = [](int x)
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{
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return x + 1;
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};
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BOOST_HOF_TEST_CASE()
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{
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BOOST_HOF_TEST_CHECK(add_one(2) == 3);
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}
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BOOST_HOF_STATIC_LAMBDA_FUNCTION(sum_partial) = boost::hof::partial([](int x, int y)
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{
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return x + y;
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});
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BOOST_HOF_TEST_CASE()
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{
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#ifndef _MSC_VER
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STATIC_ASSERT_EMPTY(sum_partial);
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#endif
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BOOST_HOF_TEST_CHECK(3 == sum_partial(1, 2));
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BOOST_HOF_TEST_CHECK(3 == sum_partial(1)(2));
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}
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BOOST_HOF_STATIC_LAMBDA_FUNCTION(add_one_pipable) = boost::hof::pipable([](int x)
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{
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return x + 1;
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});
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BOOST_HOF_TEST_CASE()
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{
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#ifndef _MSC_VER
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STATIC_ASSERT_EMPTY(add_one_pipable);
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#endif
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BOOST_HOF_TEST_CHECK(3 == add_one_pipable(2));
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BOOST_HOF_TEST_CHECK(3 == (2 | add_one_pipable));
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}
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BOOST_HOF_STATIC_LAMBDA_FUNCTION(sum_infix) = boost::hof::infix([](int x, int y)
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{
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return x + y;
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});
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BOOST_HOF_TEST_CASE()
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{
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#ifndef _MSC_VER
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STATIC_ASSERT_EMPTY(sum_infix);
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#endif
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BOOST_HOF_TEST_CHECK(3 == (1 <sum_infix> 2));
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}
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}
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