repeat.cpp
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/*=============================================================================
Copyright (c) 2017 Paul Fultz II
repeat.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/repeat.hpp>
#include <limits>
#include "test.hpp"
// TODO: Add tests for multiple parameters
struct increment
{
template<class T>
constexpr T operator()(T x) const noexcept
{
return x + 1;
}
};
#if BOOST_HOF_HAS_NOEXCEPT_DEDUCTION
BOOST_HOF_TEST_CASE()
{
static_assert(noexcept(boost::hof::repeat(std::integral_constant<int, 5>())(increment())(1)), "noexcept repeat");
static_assert(noexcept(boost::hof::repeat(5)(increment())(1)), "noexcept repeat");
}
#endif
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(boost::hof::repeat(std::integral_constant<int, 5>())(increment())(1) == 6);
BOOST_HOF_STATIC_TEST_CHECK(boost::hof::repeat(std::integral_constant<int, 5>())(increment())(1) == 6);
}
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(boost::hof::repeat(5)(increment())(1) == 6);
BOOST_HOF_STATIC_TEST_CHECK(boost::hof::repeat(5)(increment())(1) == 6);
}
BOOST_HOF_TEST_CASE()
{
int i = 5;
BOOST_HOF_TEST_CHECK(boost::hof::repeat(i)(increment())(1) == 6);
}
BOOST_HOF_TEST_CASE()
{
static const int i = 5;
BOOST_HOF_TEST_CHECK(boost::hof::repeat(i)(increment())(1) == 6);
BOOST_HOF_STATIC_TEST_CHECK(boost::hof::repeat(i)(increment())(1) == 6);
}
// BOOST_HOF_TEST_CASE()
// {
// BOOST_HOF_TEST_CHECK(boost::hof::repeat(std::numeric_limits<int>::max()/4)(increment())(0) == std::numeric_limits<int>::max()/4);
// }
BOOST_HOF_TEST_CASE()
{
BOOST_HOF_TEST_CHECK(boost::hof::repeat(BOOST_HOF_RECURSIVE_CONSTEXPR_DEPTH+4)(increment())(0) == BOOST_HOF_RECURSIVE_CONSTEXPR_DEPTH+4);
#if BOOST_HOF_HAS_RELAXED_CONSTEXPR
BOOST_HOF_STATIC_TEST_CHECK(boost::hof::repeat(BOOST_HOF_RECURSIVE_CONSTEXPR_DEPTH+4)(increment())(0) == BOOST_HOF_RECURSIVE_CONSTEXPR_DEPTH+4);
#endif
}