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Eigen  3.4.0
ReshapedHelper.h
1 // This file is part of Eigen, a lightweight C++ template library
2 // for linear algebra.
3 //
4 // Copyright (C) 2017 Gael Guennebaud <gael.guennebaud@inria.fr>
5 //
6 // This Source Code Form is subject to the terms of the Mozilla
7 // Public License v. 2.0. If a copy of the MPL was not distributed
8 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
9 
10 
11 #ifndef EIGEN_RESHAPED_HELPER_H
12 #define EIGEN_RESHAPED_HELPER_H
13 
14 namespace Eigen {
15 
16 enum AutoSize_t { AutoSize };
17 const int AutoOrder = 2;
18 
19 namespace internal {
20 
21 template<typename SizeType,typename OtherSize, int TotalSize>
22 struct get_compiletime_reshape_size {
23  enum { value = get_fixed_value<SizeType>::value };
24 };
25 
26 template<typename SizeType>
27 Index get_runtime_reshape_size(SizeType size, Index /*other*/, Index /*total*/) {
28  return internal::get_runtime_value(size);
29 }
30 
31 template<typename OtherSize, int TotalSize>
32 struct get_compiletime_reshape_size<AutoSize_t,OtherSize,TotalSize> {
33  enum {
34  other_size = get_fixed_value<OtherSize>::value,
35  value = (TotalSize==Dynamic || other_size==Dynamic) ? Dynamic : TotalSize / other_size };
36 };
37 
38 inline Index get_runtime_reshape_size(AutoSize_t /*size*/, Index other, Index total) {
39  return total/other;
40 }
41 
42 template<int Flags, int Order>
43 struct get_compiletime_reshape_order {
44  enum { value = Order == AutoOrder ? Flags & RowMajorBit : Order };
45 };
46 
47 }
48 
49 } // end namespace Eigen
50 
51 #endif // EIGEN_RESHAPED_HELPER_H
Namespace containing all symbols from the Eigen library.
Definition: Core:141
const unsigned int RowMajorBit
Definition: Constants.h:66
EIGEN_DEFAULT_DENSE_INDEX_TYPE Index
The Index type as used for the API.
Definition: Meta.h:74
Definition: Eigen_Colamd.h:50
const int Dynamic
Definition: Constants.h:22