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46 lines
1.2 KiB
C++
46 lines
1.2 KiB
C++
#ifndef BOOST_NUMERIC_AUTOMATIC_HPP
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#define BOOST_NUMERIC_AUTOMATIC_HPP
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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// Copyright (c) 2012 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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// we could have used decltype and auto for C++11 but we've decided
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// to use boost/typeof to be compatible with older compilers
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#include <boost/typeof/typeof.hpp>
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// policy which creates results types equal to that of C++ promotions.
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// Using the policy will permit the program to build and run in release
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// mode which is identical to that in debug mode except for the fact
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// that errors aren't trapped.
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namespace boost {
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namespace numeric {
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namespace promotion {
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struct automatic {
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template<
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typename T,
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typename U
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>
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struct addition_result {
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typedef boost::numeric::safe_unsigned_range<
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std::numeric_limits<T>::min() + std::numeric_limits<U>::min(),
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std::numeric_limits<T>::max() + std::numeric_limits<U>::max(),
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> type;
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};
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};
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} // promotion
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} // numeric
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} // boost
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#endif // BOOST_NUMERIC_AUTOMATIC_HPP
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