1 /*
2 [auto_generated]
3 boost/numeric/odeint/util/resizer.hpp
4
5 [begin_description]
6 Implementation of the resizers.
7 [end_description]
8
9 Copyright 2011-2012 Mario Mulansky
10 Copyright 2011 Karsten Ahnert
11
12 Distributed under the Boost Software License, Version 1.0.
13 (See accompanying file LICENSE_1_0.txt or
14 copy at http://www.boost.org/LICENSE_1_0.txt)
15 */
16
17
18 #ifndef BOOST_NUMERIC_ODEINT_UTIL_RESIZER_HPP_INCLUDED
19 #define BOOST_NUMERIC_ODEINT_UTIL_RESIZER_HPP_INCLUDED
20
21
22 #include <boost/numeric/odeint/util/is_resizeable.hpp>
23 #include <boost/numeric/odeint/util/same_size.hpp>
24 #include <boost/numeric/odeint/util/resize.hpp>
25
26 namespace boost {
27 namespace numeric {
28 namespace odeint {
29
30 template< class ResizeWrappedState , class State >
adjust_size_by_resizeability(ResizeWrappedState & x,const State & y,boost::true_type)31 bool adjust_size_by_resizeability( ResizeWrappedState &x , const State &y , boost::true_type )
32 {
33 if ( !same_size( x.m_v , y ) )
34 {
35 resize( x.m_v , y );
36 return true;
37 }
38 else
39 return false;
40 }
41
42 template< class ResizeWrappedState , class State >
adjust_size_by_resizeability(ResizeWrappedState &,const State &,boost::false_type)43 bool adjust_size_by_resizeability( ResizeWrappedState & /* x */ , const State & /* y */ , boost::false_type )
44 {
45 return false;
46 }
47
48 struct always_resizer
49 {
50 template< class State , class ResizeFunction >
adjust_sizeboost::numeric::odeint::always_resizer51 bool adjust_size( const State &x , ResizeFunction f )
52 {
53 return f( x );
54 }
55 };
56
57
58 struct initially_resizer
59 {
60
61 bool m_initialized;
62
initially_resizerboost::numeric::odeint::initially_resizer63 initially_resizer() : m_initialized( false )
64 { }
65
66 template< class State , class ResizeFunction >
adjust_sizeboost::numeric::odeint::initially_resizer67 bool adjust_size( const State &x , ResizeFunction f )
68 {
69 if( !m_initialized )
70 {
71 m_initialized = true;
72 return f( x );
73 } else
74 return false;
75 }
76 };
77
78
79 struct never_resizer
80 {
81 template< class State , class ResizeFunction >
adjust_sizeboost::numeric::odeint::never_resizer82 bool adjust_size( const State &/*x*/ , ResizeFunction /*f*/ )
83 {
84 return false;
85 }
86 };
87
88
89 }
90 }
91 }
92
93 #endif // BOOST_NUMERIC_ODEINT_UTIL_RESIZER_HPP_INCLUDED
94