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- /*-----------------------------------------------------------------------------+
- Copyright (c) 2010-2010: Joachim Faulhaber
- +------------------------------------------------------------------------------+
- Distributed under the Boost Software License, Version 1.0.
- (See accompanying file LICENCE.txt or copy at
- http://www.boost.org/LICENSE_1_0.txt)
- +-----------------------------------------------------------------------------*/
- #ifndef BOOST_ICL_TYPE_TRAITS_IS_NUMERIC_HPP_JOFA_100322
- #define BOOST_ICL_TYPE_TRAITS_IS_NUMERIC_HPP_JOFA_100322
- #include <limits>
- #include <complex>
- #include <functional>
- #include <boost/type_traits/is_floating_point.hpp>
- #include <boost/type_traits/is_integral.hpp>
- namespace boost{ namespace icl
- {
- template <class Type> struct is_fixed_numeric
- {
- typedef is_fixed_numeric type;
- BOOST_STATIC_CONSTANT(bool, value = (0 < std::numeric_limits<Type>::digits));
- };
- template <class Type> struct is_std_numeric
- {
- typedef is_std_numeric type;
- BOOST_STATIC_CONSTANT(bool,
- value = (std::numeric_limits<Type>::is_specialized));
- };
- template <class Type> struct is_std_integral
- {
- typedef is_std_integral type;
- BOOST_STATIC_CONSTANT(bool,
- value = (std::numeric_limits<Type>::is_integer));
- };
- template <class Type> struct is_numeric
- {
- typedef is_numeric type;
- BOOST_STATIC_CONSTANT(bool, value =
- (mpl::or_< is_std_numeric<Type>
- , boost::is_integral<Type>
- , is_std_integral<Type> >::value) );
- };
- template <class Type>
- struct is_numeric<std::complex<Type> >
- {
- typedef is_numeric type;
- BOOST_STATIC_CONSTANT(bool, value = true);
- };
- //--------------------------------------------------------------------------
- template<class Type, class Compare, bool Enable = false>
- struct numeric_minimum
- {
- static bool is_less_than(Type){ return true; }
- static bool is_less_than_or(Type, bool){ return true; }
- };
- template<class Type>
- struct numeric_minimum<Type, std::less<Type>, true>
- {
- static bool is_less_than(Type value)
- { return std::less<Type>()((std::numeric_limits<Type>::min)(), value); }
- static bool is_less_than_or(Type value, bool cond)
- { return cond || is_less_than(value); }
- };
- template<class Type>
- struct numeric_minimum<Type, std::greater<Type>, true>
- {
- static bool is_less_than(Type value)
- { return std::greater<Type>()((std::numeric_limits<Type>::max)(), value); }
- static bool is_less_than_or(Type value, bool cond)
- { return cond || is_less_than(value); }
- };
- //--------------------------------------------------------------------------
- template<class Type>
- struct is_non_floating_point
- {
- typedef is_non_floating_point type;
- BOOST_STATIC_CONSTANT(bool, value =
- (mpl::not_< is_floating_point<Type> >::value));
- };
- }} // namespace boost icl
- #endif
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