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