48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
// Boost.Geometry Index
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//
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// Abs of difference
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//
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// Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
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//
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// This file was modified by Oracle on 2020-2023.
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// Modifications copyright (c) 2020-2023, Oracle and/or its affiliates.
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// Contributed and/or modified by Vissarion Fysikopoulos, on behalf of Oracle
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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//
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See 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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#ifndef BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_DIFF_ABS_HPP
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#define BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_DIFF_ABS_HPP
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#include <cmath>
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#include <type_traits>
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namespace boost { namespace geometry { namespace index { namespace detail
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{
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template
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<
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typename T,
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std::enable_if_t<std::is_integral<T>::value, int> = 0
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>
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inline T diff_abs(T const& v1, T const& v2)
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{
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return v1 < v2 ? v2 - v1 : v1 - v2;
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}
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template
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<
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typename T,
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std::enable_if_t<! std::is_integral<T>::value, int> = 0
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>
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inline T diff_abs(T const& v1, T const& v2)
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{
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return ::fabs(v1 - v2);
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}
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}}}} // namespace boost::geometry::index::detail
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#endif // BOOST_GEOMETRY_INDEX_DETAIL_ALGORITHMS_DIFF_ABS_HPP
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