5 |
5 |
6 // See library home page at http://www.boost.org/libs/numeric/conversion |
6 // See library home page at http://www.boost.org/libs/numeric/conversion |
7 // |
7 // |
8 // Contact the author at: fernando_cacciola@hotmail.com |
8 // Contact the author at: fernando_cacciola@hotmail.com |
9 // |
9 // |
10 #ifndef BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP |
10 #ifndef BOOST_NUMERIC_CONVERSION_BOUNDS_12NOV2002_HPP |
11 #define BOOST_NUMERIC_CONVERSION_BOUNDS_DETAIL_FLC_12NOV2002_HPP |
11 #define BOOST_NUMERIC_CONVERSION_BOUNDS_12NOV2002_HPP |
12 |
12 |
13 #include "boost/limits.hpp" |
13 #include "boost/numeric/conversion/detail/bounds.hpp" |
14 #include "boost/config.hpp" |
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15 #include "boost/mpl/if.hpp" |
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16 |
14 |
17 namespace boost { namespace numeric { namespace boundsdetail |
15 namespace boost { namespace numeric |
18 { |
16 { |
19 template<class N> |
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20 class Integral |
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21 { |
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22 typedef std::numeric_limits<N> limits ; |
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23 |
17 |
24 public : |
18 template<class N> |
25 |
19 struct bounds : boundsdetail::get_impl<N>::type |
26 static N lowest () { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); } |
20 {} ; |
27 static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); } |
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28 static N smallest() { return static_cast<N>(1); } |
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29 } ; |
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30 |
21 |
31 template<class N> |
22 } } // namespace boost::numeric |
32 class Float |
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33 { |
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34 typedef std::numeric_limits<N> limits ; |
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35 |
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36 public : |
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37 |
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38 static N lowest () { return static_cast<N>(-limits::max BOOST_PREVENT_MACRO_SUBSTITUTION ()) ; } |
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39 static N highest () { return limits::max BOOST_PREVENT_MACRO_SUBSTITUTION (); } |
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40 static N smallest() { return limits::min BOOST_PREVENT_MACRO_SUBSTITUTION (); } |
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41 } ; |
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42 |
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43 template<class N> |
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44 struct get_impl |
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45 { |
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46 typedef mpl::bool_< ::std::numeric_limits<N>::is_integer > is_int ; |
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47 |
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48 typedef Integral<N> impl_int ; |
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49 typedef Float <N> impl_float ; |
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50 |
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51 typedef typename mpl::if_<is_int,impl_int,impl_float>::type type ; |
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52 } ; |
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53 |
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54 } } } // namespace boost::numeric::boundsdetail. |
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55 |
23 |
56 #endif |
24 #endif |
57 // |
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58 /////////////////////////////////////////////////////////////////////////////////////////////// |
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