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