/* Boost interval/detail/test_input.hpp file | |
* | |
* Copyright 2002 Hervé Brönnimann, Guillaume Melquiond, Sylvain Pion | |
* | |
* Distributed under the Boost Software License, Version 1.0. | |
* (See accompanying file LICENSE_1_0.txt or | |
* copy at http://www.boost.org/LICENSE_1_0.txt) | |
*/ | |
#ifndef BOOST_NUMERIC_INTERVAL_DETAIL_TEST_INPUT_HPP | |
#define BOOST_NUMERIC_INTERVAL_DETAIL_TEST_INPUT_HPP | |
#include <boost/numeric/interval/detail/interval_prototype.hpp> | |
namespace boost { | |
namespace numeric { | |
namespace interval_lib { | |
namespace user { | |
template<class T> inline | |
bool is_zero(T const &v) { return v == static_cast<T>(0); } | |
template<class T> inline | |
bool is_neg (T const &v) { return v < static_cast<T>(0); } | |
template<class T> inline | |
bool is_pos (T const &v) { return v > static_cast<T>(0); } | |
} // namespace user | |
namespace detail { | |
template<class T, class Policies> inline | |
bool test_input(const interval<T, Policies>& x) { | |
typedef typename Policies::checking checking; | |
return checking::is_empty(x.lower(), x.upper()); | |
} | |
template<class T, class Policies1, class Policies2> inline | |
bool test_input(const interval<T, Policies1>& x, const interval<T, Policies2>& y) { | |
typedef typename Policies1::checking checking1; | |
typedef typename Policies2::checking checking2; | |
return checking1::is_empty(x.lower(), x.upper()) || | |
checking2::is_empty(y.lower(), y.upper()); | |
} | |
template<class T, class Policies> inline | |
bool test_input(const T& x, const interval<T, Policies>& y) { | |
typedef typename Policies::checking checking; | |
return checking::is_nan(x) || checking::is_empty(y.lower(), y.upper()); | |
} | |
template<class T, class Policies> inline | |
bool test_input(const interval<T, Policies>& x, const T& y) { | |
typedef typename Policies::checking checking; | |
return checking::is_empty(x.lower(), x.upper()) || checking::is_nan(y); | |
} | |
template<class T, class Policies> inline | |
bool test_input(const T& x) { | |
typedef typename Policies::checking checking; | |
return checking::is_nan(x); | |
} | |
template<class T, class Policies> inline | |
bool test_input(const T& x, const T& y) { | |
typedef typename Policies::checking checking; | |
return checking::is_nan(x) || checking::is_nan(y); | |
} | |
} // namespace detail | |
} // namespace interval_lib | |
} // namespace numeric | |
} // namespace boost | |
#endif // BOOST_NUMERIC_INTERVAL_DETAIL_TEST_INPUT_HPP |