williamr@2: //  © Copyright Fernando Luis Cacciola Carballal 2000-2004
williamr@2: //  Use, modification, and distribution is subject to the Boost Software
williamr@2: //  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
williamr@2: //  http://www.boost.org/LICENSE_1_0.txt)
williamr@2: 
williamr@2: //  See library home page at http://www.boost.org/libs/numeric/conversion
williamr@2: //
williamr@2: // Contact the author at: fernando_cacciola@hotmail.com
williamr@2: // 
williamr@2: #ifndef BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP
williamr@2: #define BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP
williamr@2: 
williamr@2: #include "boost/limits.hpp"
williamr@2: #include "boost/config.hpp"
williamr@2: #include "boost/mpl/if.hpp"
williamr@2: 
williamr@2: namespace boost { namespace numeric { namespace boundsdetail
williamr@2: {
williamr@2:   template<class N>
williamr@2:   class Integral
williamr@2:   {
williamr@2:       typedef std::numeric_limits<N> limits ;
williamr@2: 
williamr@2:     public :
williamr@2:     
williamr@2:       static N lowest  () { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); }
williamr@2:       static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); }
williamr@2:       static N smallest() { return static_cast<N>(1); }
williamr@2:   } ;
williamr@2: 
williamr@2:   template<class N>
williamr@2:   class Float
williamr@2:   {
williamr@2:       typedef std::numeric_limits<N> limits ;
williamr@2: 
williamr@2:     public :
williamr@2:     
williamr@2:       static N lowest  () { return static_cast<N>(-limits::max BOOST_PREVENT_MACRO_SUBSTITUTION ()) ; }
williamr@2:       static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); }
williamr@2:       static N smallest() { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); }
williamr@2:   } ;
williamr@2: 
williamr@2:   template<class N>
williamr@2:   struct get_impl
williamr@2:   {
williamr@2:     typedef mpl::bool_< ::std::numeric_limits<N>::is_integer > is_int ;
williamr@2: 
williamr@2:     typedef Integral<N> impl_int   ;
williamr@2:     typedef Float   <N> impl_float ;
williamr@2: 
williamr@2:     typedef typename mpl::if_<is_int,impl_int,impl_float>::type type ;
williamr@2:   } ;
williamr@2: 
williamr@2: } } } // namespace boost::numeric::boundsdetail.
williamr@2: 
williamr@2: #endif
williamr@2: //
williamr@2: ///////////////////////////////////////////////////////////////////////////////////////////////