1// (c) Copyright Fernando Luis Cacciola Carballal 2000-2004
2// Use, modification, and distribution is subject to the Boost Software
3// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
4// http://www.boost.org/LICENSE_1_0.txt)
5
6// See library home page at http://www.boost.org/libs/numeric/conversion
7//
8// Contact the author at: fernando_cacciola@hotmail.com
9//
10#ifndef BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP
11#define BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP
12
13#include "boost/limits.hpp"
14#include "boost/config.hpp"
15#include "boost/mpl/if.hpp"
16
17namespace boost { namespace numeric { namespace boundsdetail
18{
19 template<class N>
20 class Integral
21 {
22 typedef std::numeric_limits<N> limits ;
23
24 public :
25
26 static N lowest () { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); }
27 static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); }
28 static N smallest() { return static_cast<N>(1); }
29 } ;
30
31 template<class N>
32 class Float
33 {
34 typedef std::numeric_limits<N> limits ;
35
36 public :
37
38 static N lowest () { return static_cast<N>(-limits::max BOOST_PREVENT_MACRO_SUBSTITUTION ()) ; }
39 static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); }
40 static N smallest() { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); }
41 } ;
42
43 template<class N>
44 struct get_impl
45 {
46 typedef mpl::bool_< ::std::numeric_limits<N>::is_integer > is_int ;
47
48 typedef Integral<N> impl_int ;
49 typedef Float <N> impl_float ;
50
51 typedef typename mpl::if_<is_int,impl_int,impl_float>::type type ;
52 } ;
53
54} } } // namespace boost::numeric::boundsdetail.
55
56#endif
57//
58///////////////////////////////////////////////////////////////////////////////////////////////
59