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/*
* Copyright 2008-2009 NVIDIA Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <cusp/convert.h>
#include <cusp/detail/format_utils.h>
#include <thrust/sort.h>
#include <thrust/iterator/zip_iterator.h>
namespace cusp
{
//////////////////
// Constructors //
//////////////////
// construct from a different matrix
template <typename IndexType, typename ValueType, class MemorySpace>
template <typename MatrixType>
coo_matrix<IndexType,ValueType,MemorySpace>
::coo_matrix(const MatrixType& matrix)
{
cusp::convert(matrix, *this);
}
////////////////////////////////
// Container Member Functions //
////////////////////////////////
// assignment from another matrix
template <typename IndexType, typename ValueType, class MemorySpace>
template <typename MatrixType>
coo_matrix<IndexType,ValueType,MemorySpace>&
coo_matrix<IndexType,ValueType,MemorySpace>
::operator=(const MatrixType& matrix)
{
cusp::convert(matrix, *this);
return *this;
}
// sort matrix elements by row index
template <typename IndexType, typename ValueType, class MemorySpace>
void
coo_matrix<IndexType,ValueType,MemorySpace>
::sort_by_row(void)
{
cusp::detail::sort_by_row(row_indices, column_indices, values);
}
// sort matrix elements by row index
template <typename IndexType, typename ValueType, class MemorySpace>
void
coo_matrix<IndexType,ValueType,MemorySpace>
::sort_by_row_and_column(void)
{
cusp::detail::sort_by_row_and_column(row_indices, column_indices, values);
}
// determine whether matrix elements are sorted by row index
template <typename IndexType, typename ValueType, class MemorySpace>
bool
coo_matrix<IndexType,ValueType,MemorySpace>
::is_sorted_by_row(void)
{
return thrust::is_sorted(row_indices.begin(), row_indices.end());
}
// determine whether matrix elements are sorted by row and column index
template <typename IndexType, typename ValueType, class MemorySpace>
bool
coo_matrix<IndexType,ValueType,MemorySpace>
::is_sorted_by_row_and_column(void)
{
return thrust::is_sorted
(thrust::make_zip_iterator(thrust::make_tuple(row_indices.begin(), column_indices.begin())),
thrust::make_zip_iterator(thrust::make_tuple(row_indices.end(), column_indices.end())));
}
///////////////////////////
// View Member Functions //
///////////////////////////
// sort matrix elements by row index
template <typename Array1, typename Array2, typename Array3, typename IndexType, typename ValueType, typename MemorySpace>
void
coo_matrix_view<Array1,Array2,Array3,IndexType,ValueType,MemorySpace>
::sort_by_row(void)
{
cusp::detail::sort_by_row(row_indices, column_indices, values);
}
// sort matrix elements by row index
template <typename Array1, typename Array2, typename Array3, typename IndexType, typename ValueType, typename MemorySpace>
void
coo_matrix_view<Array1,Array2,Array3,IndexType,ValueType,MemorySpace>
::sort_by_row_and_column(void)
{
cusp::detail::sort_by_row_and_column(row_indices, column_indices, values);
}
// determine whether matrix elements are sorted by row index
template <typename Array1, typename Array2, typename Array3, typename IndexType, typename ValueType, typename MemorySpace>
bool
coo_matrix_view<Array1,Array2,Array3,IndexType,ValueType,MemorySpace>
::is_sorted_by_row(void)
{
return thrust::is_sorted(row_indices.begin(), row_indices.end());
}
// determine whether matrix elements are sorted by row and column index
template <typename Array1, typename Array2, typename Array3, typename IndexType, typename ValueType, typename MemorySpace>
bool
coo_matrix_view<Array1,Array2,Array3,IndexType,ValueType,MemorySpace>
::is_sorted_by_row_and_column(void)
{
return thrust::is_sorted
(thrust::make_zip_iterator(thrust::make_tuple(row_indices.begin(), column_indices.begin())),
thrust::make_zip_iterator(thrust::make_tuple(row_indices.end(), column_indices.end())));
}
} // end namespace cusp
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