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/*
* Copyright (c) 2012, Michael Lehn, Klaus Pototzky
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1) Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3) Neither the name of the FLENS development group nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FLENS_STORAGE_PACKEDSTORAGE_PACKEDSTORAGEVIEW_TCC
#define FLENS_STORAGE_PACKEDSTORAGE_PACKEDSTORAGEVIEW_TCC
#include <flens/auxiliary/auxiliary.h>
#include <flens/storage/packedstorage/packedstorageview.h>
#include <flens/typedefs.h>
#include <ulmblas/cxxblas.h>
namespace flens {
template <typename T, StorageOrder Order, typename I, typename A>
PackedStorageView<T, Order, I, A>::PackedStorageView(IndexType dim,
ElementType *data,
IndexType indexBase,
const Allocator &allocator)
: data_(data),
allocator_(allocator),
dim_(dim),
indexBase_(0)
{
ASSERT(dim_>=0);
changeIndexBase(indexBase);
}
template <typename T, StorageOrder Order, typename I, typename A>
template <typename ARRAY>
PackedStorageView<T, Order, I, A>::PackedStorageView(IndexType dim,
ARRAY &array,
IndexType indexBase,
const Allocator &allocator)
: data_(array.data()),
allocator_(allocator),
dim_(dim),
indexBase_(0)
{
ASSERT((dim*(dim+1))/2<=array.length());
ASSERT(dim_>=0);
changeIndexBase(indexBase);
}
template <typename T, StorageOrder Order, typename I, typename A>
PackedStorageView<T,Order,I,A>::PackedStorageView(const PackedStorageView &rhs)
: data_(rhs.data_),
allocator_(rhs.allocator_),
dim_(rhs.dim_),
indexBase_(rhs.indexBase_)
{
}
template <typename T, StorageOrder Order, typename I, typename A>
template <typename RHS>
PackedStorageView<T, Order, I, A>::PackedStorageView(RHS &rhs)
: data_(rhs.data()),
allocator_(rhs.allocator()),
dim_(rhs.dim()),
indexBase_(0)
{
changeIndexBase(rhs.indexBase());
}
template <typename T, StorageOrder Order, typename I, typename A>
PackedStorageView<T, Order, I, A>::~PackedStorageView()
{
}
//-- operators -----------------------------------------------------------------
template <typename T, StorageOrder Order, typename I, typename A>
const typename PackedStorageView<T, Order, I, A>::ElementType &
PackedStorageView<T, Order, I, A>::operator()(StorageUpLo upLo,
IndexType row,
IndexType col) const
{
# ifndef NDEBUG
ASSERT(row>=indexBase());
ASSERT(col>=indexBase());
ASSERT(row<=indexBase()+dim()-1);
ASSERT(col<=indexBase()+dim()-1);
if (dim()) {
if (upLo==Lower) {
ASSERT(row>=col);
} else {
ASSERT(col>=row);
}
}
# endif
const IndexType i = row - indexBase_;
const IndexType j = col - indexBase_;
const IndexType n = dim_;
if ((order==RowMajor) && (upLo==Upper)) {
return data_[j+i*(2*n-i-1)/2];
}
if ((order==RowMajor) && (upLo==Lower)) {
return data_[j+i*(i+1)/2];
}
if ((order==ColMajor) && (upLo==Upper)) {
return data_[i+j*(j+1)/2];
}
return data_[i+j*(2*n-j-1)/2];
}
template <typename T, StorageOrder Order, typename I, typename A>
typename PackedStorageView<T, Order, I, A>::ElementType &
PackedStorageView<T, Order, I, A>::operator()(StorageUpLo upLo,
IndexType row,
IndexType col)
{
# ifndef NDEBUG
ASSERT(row>=indexBase());
ASSERT(col>=indexBase());
ASSERT(row<=indexBase()+dim()-1);
ASSERT(col<=indexBase()+dim()-1);
if (dim()) {
if (upLo==Lower) {
ASSERT(row>=col);
} else {
ASSERT(col>=row);
}
}
# endif
const IndexType i = row - indexBase_;
const IndexType j = col - indexBase_;
const IndexType n = dim_;
if ((order==RowMajor) && (upLo==Upper)) {
return data_[j+i*(2*n-i-1)/2];
}
if ((order==RowMajor) && (upLo==Lower)) {
return data_[j+i*(i+1)/2];
}
if ((order==ColMajor) && (upLo==Upper)) {
return data_[i+j*(j+1)/2];
}
return data_[i+j*(2*n-j-1)/2];
}
//-- methods -------------------------------------------------------------------
template <typename T, StorageOrder Order, typename I, typename A>
typename PackedStorageView<T, Order, I, A>::IndexType
PackedStorageView<T, Order, I, A>::indexBase() const
{
return indexBase_;
}
template <typename T, StorageOrder Order, typename I, typename A>
typename PackedStorageView<T, Order, I, A>::IndexType
PackedStorageView<T, Order, I, A>::numNonZeros() const
{
return dim_*(dim_+1)/IndexType(2);
}
template <typename T, StorageOrder Order, typename I, typename A>
typename PackedStorageView<T, Order, I, A>::IndexType
PackedStorageView<T, Order, I, A>::dim() const
{
return dim_;
}
template <typename T, StorageOrder Order, typename I, typename A>
const typename PackedStorageView<T, Order, I, A>::ElementType *
PackedStorageView<T, Order, I, A>::data() const
{
return data_;
}
template <typename T, StorageOrder Order, typename I, typename A>
typename PackedStorageView<T, Order, I, A>::ElementType *
PackedStorageView<T, Order, I, A>::data()
{
return data_;
}
template <typename T, StorageOrder Order, typename I, typename A>
const typename PackedStorageView<T, Order, I, A>::Allocator &
PackedStorageView<T, Order, I, A>::allocator() const
{
return allocator_;
}
template <typename T, StorageOrder Order, typename I, typename A>
bool
PackedStorageView<T, Order, I, A>::resize(IndexType DEBUG_VAR(dim_),
IndexType indexBase,
const ElementType &)
{
ASSERT(dim_==dim());
changeIndexBase(indexBase);
return false;
}
template <typename T, StorageOrder Order, typename I, typename A>
bool
PackedStorageView<T, Order, I, A>::fill(const ElementType &value)
{
std::fill_n(data(), numNonZeros(), value);
return true;
}
template <typename T, StorageOrder Order, typename I, typename A>
void
PackedStorageView<T, Order, I, A>::changeIndexBase(IndexType indexBase)
{
indexBase_ = indexBase;
}
} // namespace flens
#endif // FLENS_STORAGE_PACKEDSTORAGE_PACKEDSTORAGEVIEW_TCC
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