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61 lines
1.4 KiB
C++
61 lines
1.4 KiB
C++
// Boost.Geometry
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// Copyright (c) 2024 Barend Gehrels, Amsterdam, the Netherlands.
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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_UTIL_NUMERIC_CAST_HPP
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#define BOOST_GEOMETRY_UTIL_NUMERIC_CAST_HPP
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#include <boost/numeric/conversion/cast.hpp>
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#include <boost/rational.hpp>
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namespace boost { namespace geometry
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{
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#ifndef DOXYGEN_NO_DETAIL
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namespace detail
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{
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/// brief calls numeric cast
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template <typename Target, typename Source>
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struct numeric_caster
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{
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static inline Target apply(Source const& source)
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{
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return boost::numeric_cast<Target>(source);
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}
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};
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// Specialization for Boost.Rational
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template <typename Target, typename T>
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struct numeric_caster<Target, rational<T>>
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{
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static inline Target apply(rational<T> const& source)
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{
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return boost::rational_cast<Target>(source);
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}
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};
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} // namespace detail
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#endif
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namespace util
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{
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// Calls either boost::numeric_cast, or functionality specific for Boost.Geometry
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// such as rational_cast for Boost.Rational
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template <typename Target, typename Source>
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inline Target numeric_cast(Source const& source)
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{
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return detail::numeric_caster<Target, Source>::apply(source);
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}
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}
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}} // namespace boost::geometry
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#endif // BOOST_GEOMETRY_UTIL_NUMERIC_CAST_HPP
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