整理

include/boost/numeric/odeint/util/resizer.hpp

@@ -0,0 +1,94 @@
+/*
+ [auto_generated]
+ boost/numeric/odeint/util/resizer.hpp
+
+ [begin_description]
+ Implementation of the resizers.
+ [end_description]
+
+ Copyright 2011-2012 Mario Mulansky
+ Copyright 2011 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_UTIL_RESIZER_HPP_INCLUDED
+#define BOOST_NUMERIC_ODEINT_UTIL_RESIZER_HPP_INCLUDED
+
+
+#include <boost/numeric/odeint/util/is_resizeable.hpp>
+#include <boost/numeric/odeint/util/same_size.hpp>
+#include <boost/numeric/odeint/util/resize.hpp>
+#include <type_traits>
+
+namespace boost {
+namespace numeric {
+namespace odeint {
+
+template< class ResizeWrappedState , class State >
+bool adjust_size_by_resizeability( ResizeWrappedState &x , const State &y , std::true_type )
+{
+    if ( !same_size( x.m_v , y ) )
+    {
+        resize( x.m_v , y );
+        return true;
+    }
+    else
+        return false;
+}
+
+template< class ResizeWrappedState , class State >
+bool adjust_size_by_resizeability( ResizeWrappedState & /* x */ , const State & /* y */ , std::false_type )
+{
+    return false;
+}
+
+struct always_resizer
+{
+    template< class State , class ResizeFunction >
+    bool adjust_size( const State &x , ResizeFunction f )
+    {
+        return f( x );
+    }
+};
+
+
+struct initially_resizer
+{
+
+    bool m_initialized;
+
+    initially_resizer() : m_initialized( false )
+    { }
+
+    template< class State , class ResizeFunction >
+    bool adjust_size( const State &x , ResizeFunction f )
+    {
+        if( !m_initialized )
+        {
+            m_initialized = true;
+            return f( x );
+        } else
+            return false;
+    }
+};
+
+
+struct never_resizer
+{
+    template< class State , class ResizeFunction >
+    bool adjust_size( const State &/*x*/ , ResizeFunction /*f*/ )
+    {
+        return false;
+    }
+};
+
+
+}
+}
+}
+
+#endif // BOOST_NUMERIC_ODEINT_UTIL_RESIZER_HPP_INCLUDED