Chris@16: /*
Chris@16:  [auto_generated]
Chris@16:  boost/numeric/odeint/util/resizer.hpp
Chris@16: 
Chris@16:  [begin_description]
Chris@16:  Implementation of the resizers.
Chris@16:  [end_description]
Chris@16: 
Chris@101:  Copyright 2011-2012 Mario Mulansky
Chris@101:  Copyright 2011 Karsten Ahnert
Chris@16: 
Chris@16:  Distributed under the Boost Software License, Version 1.0.
Chris@16:  (See accompanying file LICENSE_1_0.txt or
Chris@16:  copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  */
Chris@16: 
Chris@16: 
Chris@16: #ifndef BOOST_NUMERIC_ODEINT_UTIL_RESIZER_HPP_INCLUDED
Chris@16: #define BOOST_NUMERIC_ODEINT_UTIL_RESIZER_HPP_INCLUDED
Chris@16: 
Chris@16: 
Chris@16: #include <boost/numeric/odeint/util/is_resizeable.hpp>
Chris@16: #include <boost/numeric/odeint/util/same_size.hpp>
Chris@16: #include <boost/numeric/odeint/util/resize.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace numeric {
Chris@16: namespace odeint {
Chris@16: 
Chris@16: template< class ResizeWrappedState , class State >
Chris@16: bool adjust_size_by_resizeability( ResizeWrappedState &x , const State &y , boost::true_type )
Chris@16: {
Chris@16:     if ( !same_size( x.m_v , y ) )
Chris@16:     {
Chris@16:         resize( x.m_v , y );
Chris@16:         return true;
Chris@16:     }
Chris@16:     else
Chris@16:         return false;
Chris@16: }
Chris@16: 
Chris@16: template< class ResizeWrappedState , class State >
Chris@16: bool adjust_size_by_resizeability( ResizeWrappedState & /* x */ , const State & /* y */ , boost::false_type )
Chris@16: {
Chris@16:     return false;
Chris@16: }
Chris@16: 
Chris@16: struct always_resizer
Chris@16: {
Chris@16:     template< class State , class ResizeFunction >
Chris@16:     bool adjust_size( const State &x , ResizeFunction f )
Chris@16:     {
Chris@16:         return f( x );
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: struct initially_resizer
Chris@16: {
Chris@16: 
Chris@16:     bool m_initialized;
Chris@16: 
Chris@16:     initially_resizer() : m_initialized( false )
Chris@16:     { }
Chris@16: 
Chris@16:     template< class State , class ResizeFunction >
Chris@16:     bool adjust_size( const State &x , ResizeFunction f )
Chris@16:     {
Chris@16:         if( !m_initialized )
Chris@16:         {
Chris@16:             m_initialized = true;
Chris@16:             return f( x );
Chris@16:         } else
Chris@16:             return false;
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: struct never_resizer
Chris@16: {
Chris@16:     template< class State , class ResizeFunction >
Chris@16:     bool adjust_size( const State &x , ResizeFunction f )
Chris@16:     {
Chris@16:         return false;
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: }
Chris@16: }
Chris@16: }
Chris@16: 
Chris@16: #endif // BOOST_NUMERIC_ODEINT_UTIL_RESIZER_HPP_INCLUDED