整理

include/boost/numeric/odeint/util/detail/less_with_sign.hpp

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+/*
+ [auto_generated]
+ boost/numeric/odeint/util/detail/less_with_sign.hpp
+
+ [begin_description]
+ Helper function to compare times taking into account the sign of dt
+ [end_description]
+
+ Copyright 2012-2015 Mario Mulansky
+ Copyright 2012 Karsten Ahnert
+
+ 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_ODEINT_INTEGRATE_DETAIL_LESS_WITH_SIGN_HPP_INCLUDED
+#define BOOST_NUMERIC_ODEINT_INTEGRATE_DETAIL_LESS_WITH_SIGN_HPP_INCLUDED
+
+#include <limits>
+
+#include <boost/numeric/odeint/util/unit_helper.hpp>
+
+namespace boost {
+namespace numeric {
+namespace odeint {
+namespace detail {
+
+/**
+ * return t1 < t2 if dt > 0 and t1 > t2 if dt < 0 with epsilon accuracy
+ */
+template< typename T >
+bool less_with_sign( T t1 , T t2 , T dt )
+{
+    if( get_unit_value(dt) > 0 )
+        //return t1 < t2;
+        return t2-t1 > std::numeric_limits<T>::epsilon();
+    else
+        //return t1 > t2;
+        return t1-t2 > std::numeric_limits<T>::epsilon();
+}
+
+/**
+ * return t1 <= t2 if dt > 0 and t1 => t2 if dt < 0 with epsilon accuracy
+ */
+template< typename T >
+bool less_eq_with_sign( T t1 , T t2 , T dt )
+{
+    if( get_unit_value(dt) > 0 )
+        return t1-t2 <= std::numeric_limits<T>::epsilon();
+    else
+        return t2-t1 <= std::numeric_limits<T>::epsilon();
+}
+
+template< typename T >
+T min_abs( T t1 , T t2 )
+{
+    BOOST_USING_STD_MIN();
+    BOOST_USING_STD_MAX();
+    if( get_unit_value(t1)>0 )
+        return min BOOST_PREVENT_MACRO_SUBSTITUTION ( t1 , t2 );
+    else
+        return max BOOST_PREVENT_MACRO_SUBSTITUTION ( t1 , t2 );
+}
+
+template< typename T >
+T max_abs( T t1 , T t2 )
+{
+    BOOST_USING_STD_MIN();
+    BOOST_USING_STD_MAX();
+    if( get_unit_value(t1)>0 )
+        return max BOOST_PREVENT_MACRO_SUBSTITUTION ( t1 , t2 );
+    else
+        return min BOOST_PREVENT_MACRO_SUBSTITUTION ( t1 , t2 );
+}
+} } } }
+
+#endif