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/*=============================================================================
Copyright (c) 2017 Paul Fultz II
lambda.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 <boost/hof/lambda.hpp>
#include <boost/hof/first_of.hpp>
#include <boost/hof/partial.hpp>
#include <boost/hof/infix.hpp>
#include <boost/hof/pipable.hpp>
#include <memory>
#include "test.hpp"
static constexpr auto add_one = BOOST_HOF_STATIC_LAMBDA(int x)
{
return x + 1;
};
template<class F>
struct wrapper : F
{
BOOST_HOF_INHERIT_CONSTRUCTOR(wrapper, F)
};
template<class T>
constexpr wrapper<T> wrap(T x)
{
return x;
}
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(3 == add_one(2));
}
BOOST_HOF_TEST_CASE()
{
constexpr auto add_one_again = add_one;
BOOST_HOF_TEST_CHECK(3 == add_one_again(2));
}
BOOST_HOF_TEST_CASE()
{
constexpr auto add_one_again = wrap(add_one);
BOOST_HOF_TEST_CHECK(3 == add_one_again(2));
}
namespace test_static {
BOOST_HOF_STATIC_LAMBDA_FUNCTION(add_one) = [](int x)
{
return x + 1;
};
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(add_one(2) == 3);
}
BOOST_HOF_STATIC_LAMBDA_FUNCTION(sum_partial) = boost::hof::partial([](int x, int y)
{
return x + y;
});
BOOST_HOF_TEST_CASE()
{
#ifndef _MSC_VER
STATIC_ASSERT_EMPTY(sum_partial);
#endif
BOOST_HOF_TEST_CHECK(3 == sum_partial(1, 2));
BOOST_HOF_TEST_CHECK(3 == sum_partial(1)(2));
}
BOOST_HOF_STATIC_LAMBDA_FUNCTION(add_one_pipable) = boost::hof::pipable([](int x)
{
return x + 1;
});
BOOST_HOF_TEST_CASE()
{
#ifndef _MSC_VER
STATIC_ASSERT_EMPTY(add_one_pipable);
#endif
BOOST_HOF_TEST_CHECK(3 == add_one_pipable(2));
BOOST_HOF_TEST_CHECK(3 == (2 | add_one_pipable));
}
BOOST_HOF_STATIC_LAMBDA_FUNCTION(sum_infix) = boost::hof::infix([](int x, int y)
{
return x + y;
});
BOOST_HOF_TEST_CASE()
{
#ifndef _MSC_VER
STATIC_ASSERT_EMPTY(sum_infix);
#endif
BOOST_HOF_TEST_CHECK(3 == (1 <sum_infix> 2));
}
}
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