41 lines
1.0 KiB
C++
41 lines
1.0 KiB
C++
#ifndef BOOST_TEST_LESS_THAN_CONSTEXPR_HPP
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#define BOOST_TEST_LESS_THAN_CONSTEXPR_HPP
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// Copyright (c) 2019 Robert Ramey
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/config.hpp> // BOOST_CLANG
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#include <boost/safe_numerics/safe_integer.hpp>
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#if BOOST_CLANG==1
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunused-comparison"
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#endif
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template<class T1, class T2>
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constexpr bool test_less_than_constexpr(
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T1 v1,
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T2 v2,
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char expected_result
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){
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using namespace boost::safe_numerics;
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// if we don't expect the operation to pass, we can't
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// check the constexpr version of the calculation so
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// just return success.
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if(expected_result == 'x')
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return true;
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safe_t<T1>(v1) < v2;
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v1 < safe_t<T2>(v2);
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safe_t<T1>(v1) < safe_t<T2>(v2);
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return true; // correct result
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}
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#if BOOST_CLANG==1
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#pragma GCC diagnostic pop
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#endif
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#endif // BOOST_TEST_LESS_THAN_CONSTEXPR_HPP
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