Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Browse files
Browse the repository at this point in the history
Rebased SGNDArray on SGReferencedData. Closes #771
- Loading branch information
Showing
4 changed files
with
142 additions
and
75 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,113 @@ | ||
/* | ||
* This program is free software; you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License as published by | ||
* the Free Software Foundation; either version 3 of the License, or | ||
* (at your option) any later version. | ||
* | ||
* Written (W) 2012 Fernando José Iglesias García | ||
* Written (W) 2010,2012 Soeren Sonnenburg | ||
* Copyright (C) 2010 Berlin Institute of Technology | ||
* Copyright (C) 2012 Soeren Sonnenburg | ||
*/ | ||
|
||
#include <shogun/lib/SGNDArray.h> | ||
#include <shogun/lib/SGReferencedData.h> | ||
|
||
namespace shogun | ||
{ | ||
|
||
template<class T> SGNDArray<T>::SGNDArray() : | ||
SGReferencedData() | ||
{ | ||
init_data(); | ||
} | ||
|
||
template<class T> SGNDArray<T>::SGNDArray(T* a, index_t* d, index_t nd, bool ref_counting) : | ||
SGReferencedData(ref_counting) | ||
{ | ||
array = a; | ||
dims = d; | ||
num_dims = nd; | ||
} | ||
|
||
template<class T> SGNDArray<T>::SGNDArray(index_t* d, index_t nd, bool ref_counting) : | ||
SGReferencedData(ref_counting), dims(d), num_dims(nd) | ||
{ | ||
index_t total = 1; | ||
for (int32_t i=0; i<num_dims; i++) | ||
total *= dims[i]; | ||
ASSERT(total>0); | ||
array = SG_MALLOC(T, total); | ||
} | ||
|
||
template<class T> SGNDArray<T>::SGNDArray(const SGNDArray &orig) : | ||
SGReferencedData(orig) | ||
{ | ||
copy_data(orig); | ||
} | ||
|
||
template<class T> SGNDArray<T>::~SGNDArray() | ||
{ | ||
unref(); | ||
} | ||
|
||
template<class T> void SGNDArray<T>::copy_data(const SGReferencedData &orig) | ||
{ | ||
array = ((SGNDArray*)(&orig))->array; | ||
dims = ((SGNDArray*)(&orig))->dims; | ||
num_dims = ((SGNDArray*)(&orig))->num_dims; | ||
} | ||
|
||
template<class T> void SGNDArray<T>::init_data() | ||
{ | ||
array = NULL; | ||
dims = NULL; | ||
num_dims = 0; | ||
} | ||
|
||
template<class T> void SGNDArray<T>::free_data() | ||
{ | ||
SG_FREE(array); | ||
SG_FREE(dims); | ||
|
||
array = NULL; | ||
dims = NULL; | ||
num_dims = 0; | ||
} | ||
|
||
template<class T> void SGNDArray<T>::transpose_matrix(index_t matIdx) const | ||
{ | ||
ASSERT(array && dims && num_dims > 2 && dims[2] > matIdx); | ||
|
||
T aux; | ||
// Index to acces directly the elements of the matrix of interest | ||
int32_t idx = matIdx*dims[0]*dims[1]; | ||
|
||
for (int32_t i=0; i<dims[0]; i++) | ||
for (int32_t j=0; j<i-1; j++) | ||
{ | ||
aux = array[idx + i + j*dims[0]]; | ||
array[idx + i + j*dims[0]] = array[idx + j + i*dims[0]]; | ||
array[idx + j + i*dims[1]] = aux; | ||
} | ||
|
||
// Swap the sizes of the two first dimensions | ||
index_t auxDim = dims[0]; | ||
dims[0] = dims[1]; | ||
dims[1] = auxDim; | ||
} | ||
|
||
template class SGNDArray<bool>; | ||
template class SGNDArray<char>; | ||
template class SGNDArray<int8_t>; | ||
template class SGNDArray<uint8_t>; | ||
template class SGNDArray<int16_t>; | ||
template class SGNDArray<uint16_t>; | ||
template class SGNDArray<int32_t>; | ||
template class SGNDArray<uint32_t>; | ||
template class SGNDArray<int64_t>; | ||
template class SGNDArray<uint64_t>; | ||
template class SGNDArray<float32_t>; | ||
template class SGNDArray<float64_t>; | ||
template class SGNDArray<floatmax_t>; | ||
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters