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58 lines
1.8 KiB
58 lines
1.8 KiB
// (c) Copyright Fernando Luis Cacciola Carballal 2000-2004 |
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// Use, modification, and distribution is subject to the Boost Software |
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// License, 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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// See library home page at http://www.boost.org/libs/numeric/conversion |
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// |
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// Contact the author at: fernando_cacciola@hotmail.com |
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// |
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#ifndef BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP |
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#define BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP |
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#include "boost/limits.hpp" |
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#include "boost/config.hpp" |
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#include "boost/mpl/if.hpp" |
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namespace boost { namespace numeric { namespace boundsdetail |
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{ |
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template<class N> |
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class Integral |
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{ |
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typedef std::numeric_limits<N> limits ; |
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public : |
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static N lowest () { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); } |
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static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); } |
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static N smallest() { return static_cast<N>(1); } |
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} ; |
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template<class N> |
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class Float |
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{ |
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typedef std::numeric_limits<N> limits ; |
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public : |
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static N lowest () { return static_cast<N>(-limits::max BOOST_PREVENT_MACRO_SUBSTITUTION ()) ; } |
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static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); } |
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static N smallest() { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); } |
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} ; |
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template<class N> |
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struct get_impl |
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{ |
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typedef mpl::bool_< ::std::numeric_limits<N>::is_integer > is_int ; |
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typedef Integral<N> impl_int ; |
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typedef Float <N> impl_float ; |
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typedef typename mpl::if_<is_int,impl_int,impl_float>::type type ; |
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} ; |
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} } } // namespace boost::numeric::boundsdetail. |
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#endif |
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// |
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///////////////////////////////////////////////////////////////////////////////////////////////
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