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traits.hh
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1 /* -*- mia-c++ -*-
2  *
3  * This file is part of MIA - a toolbox for medical image analysis
4  * Copyright (c) Leipzig, Madrid 1999-2017 Gert Wollny
5  *
6  * MIA is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with MIA; if not, see <http://www.gnu.org/licenses/>.
18  *
19  */
20 
21 #ifndef mia_core_traits__hh
22 #define mia_core_traits__hh
23 
24 #include <mia/core/defines.hh>
25 
27 
35 template <typename T>
36 struct dim_traits {
38  typedef typename T::dimsize_type dimsize_type;
39 };
40 
46 
48  vector_dimsize(): m_n(0)
49  {
50  }
51 
53  vector_dimsize(size_t n): m_n(n)
54  {
55  }
56 
58  size_t size()
59  {
60  return 1;
61  }
62 
64  size_t& operator [] (int /*i*/)
65  {
66  return m_n;
67  }
68 
70  const size_t& operator [] (int /*i*/) const
71  {
72  return m_n;
73  }
74 private:
75  size_t m_n;
76 };
77 
78 
86 template <typename T>
87 struct dim_traits<std::vector<T>> {
89 };
90 
98 template <typename T>
99 struct __cache_policy {
100  static bool apply()
101  {
102  return false;
103  }
104 };
106 
107 
108 
109 
111 
112 #endif
dim_traits
A trait to obtaine information about of dimensions of a class.
Definition: traits.hh:36
NS_MIA_BEGIN
#define NS_MIA_BEGIN
conveniance define to start the mia namespace
Definition: defines.hh:33
vector_dimsize::size
size_t size()
Definition: traits.hh:58
NS_MIA_END
#define NS_MIA_END
conveniance define to end the mia namespace
Definition: defines.hh:36
dim_traits::dimsize_type
T::dimsize_type dimsize_type
the trait
Definition: traits.hh:38
vector_dimsize
Structure to enable the use of the dim_traits class for std::vector.
Definition: traits.hh:45
vector_dimsize::vector_dimsize
vector_dimsize(size_t n)
contruct the dimsize object
Definition: traits.hh:53
vector_dimsize::operator[]
size_t & operator[](int)
return a read-write reference to the first (and only)dimension
Definition: traits.hh:64
std
Definition: gsl_iterator.hh:323
defines.hh
vector_dimsize::vector_dimsize
vector_dimsize()
contruct the dimsize object
Definition: traits.hh:48