Added boost header

test/external/boost/numeric/interval/detail/test_input.hpp

@@ -0,0 +1,76 @@
+/* Boost interval/detail/test_input.hpp file
+ *
+ * Copyright 2002 Herv<72> Br<42>nnimann, 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