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/*
* Copyright (c) 2007, Michael Lehn * * 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_FULLSTORAGE_CONSTFULLSTORAGEVIEW_TCC #define FLENS_STORAGE_FULLSTORAGE_CONSTFULLSTORAGEVIEW_TCC 1 #include <flens/storage/fullstorage/constfullstorageview.h> #include <flens/typedefs.h> namespace flens { template <typename T, StorageOrder Order, typename I, typename A> ConstFullStorageView<T, Order, I, A>::ConstFullStorageView( IndexType numRows, IndexType numCols, const ElementType *data, IndexType leadingDimension, IndexType firstRow, IndexType firstCol, const Allocator &allocator) : _data(data), _allocator(allocator), _numRows(numRows), _numCols(numCols), _leadingDimension(leadingDimension), _firstRow(0), _firstCol(0) { ASSERT(_numRows>=0); ASSERT(_numCols>=0); changeIndexBase(firstRow, firstCol); } template <typename T, StorageOrder Order, typename I, typename A> template <typename ARRAY> ConstFullStorageView<T, Order, I, A>::ConstFullStorageView( IndexType numRows, IndexType numCols, ARRAY &array, IndexType leadingDimension, IndexType firstRow, IndexType firstCol, const Allocator &allocator) : _data(array.data()), _allocator(allocator), _numRows(numRows), _numCols(numCols), _leadingDimension(leadingDimension), _firstRow(0), _firstCol(0) { ASSERT(_numRows>=0); ASSERT(_numCols>=0); ASSERT(numRows*numCols<=array.length()); changeIndexBase(firstRow, firstCol); } template <typename T, StorageOrder Order, typename I, typename A> ConstFullStorageView<T, Order, I, A>::ConstFullStorageView( const ConstFullStorageView &rhs) : _data(rhs._data), _allocator(rhs._allocator), _numRows(rhs._numRows), _numCols(rhs._numCols), _leadingDimension(rhs._leadingDimension), _firstRow(rhs._firstRow), _firstCol(rhs._firstCol) { } template <typename T, StorageOrder Order, typename I, typename A> template <typename RHS> ConstFullStorageView<T, Order, I, A>::ConstFullStorageView(const RHS &rhs) : _data(rhs.data()), _allocator(rhs.allocator()), _numRows(rhs.numRows()), _numCols(rhs.numCols()), _leadingDimension(rhs.leadingDimension()), _firstRow(0), _firstCol(0) { changeIndexBase(rhs.firstRow(), rhs.firstCol()); } template <typename T, StorageOrder Order, typename I, typename A> ConstFullStorageView<T, Order, I, A>::~ConstFullStorageView() { } //-- operators ----------------------------------------------------------------- template <typename T, StorageOrder Order, typename I, typename A> const typename ConstFullStorageView<T, Order, I, A>::ElementType & ConstFullStorageView<T, Order, I, A>::operator()(IndexType row, IndexType col) const { # ifndef NDEBUG if (numRows()>0 && numCols()>0) { ASSERT(row>=_firstRow); ASSERT(row<_firstRow+_numRows); ASSERT(col>=_firstCol); ASSERT(col<_firstCol+_numCols); } else { ASSERT(row==_firstRow); ASSERT(col==_firstCol); ASSERT(_data); } # endif if (Order==ColMajor) { return _data[col*_leadingDimension+row]; } return _data[row*_leadingDimension+col]; } //-- methods ------------------------------------------------------------------- template <typename T, StorageOrder Order, typename I, typename A> typename ConstFullStorageView<T, Order, I, A>::IndexType ConstFullStorageView<T, Order, I, A>::firstRow() const { return _firstRow; } template <typename T, StorageOrder Order, typename I, typename A> typename ConstFullStorageView<T, Order, I, A>::IndexType ConstFullStorageView<T, Order, I, A>::firstCol() const { return _firstCol; } template <typename T, StorageOrder Order, typename I, typename A> typename ConstFullStorageView<T, Order, I, A>::IndexType ConstFullStorageView<T, Order, I, A>::lastRow() const { return _firstRow+_numRows-1; } template <typename T, StorageOrder Order, typename I, typename A> typename ConstFullStorageView<T, Order, I, A>::IndexType ConstFullStorageView<T, Order, I, A>::lastCol() const { return _firstCol+_numCols-1; } template <typename T, StorageOrder Order, typename I, typename A> typename ConstFullStorageView<T, Order, I, A>::IndexType ConstFullStorageView<T, Order, I, A>::numRows() const { return _numRows; } template <typename T, StorageOrder Order, typename I, typename A> typename ConstFullStorageView<T, Order, I, A>::IndexType ConstFullStorageView<T, Order, I, A>::numCols() const { return _numCols; } template <typename T, StorageOrder Order, typename I, typename A> typename ConstFullStorageView<T, Order, I, A>::IndexType ConstFullStorageView<T, Order, I, A>::leadingDimension() const { return _leadingDimension; } template <typename T, StorageOrder Order, typename I, typename A> typename ConstFullStorageView<T, Order, I, A>::IndexType ConstFullStorageView<T, Order, I, A>::strideRow() const { return (Order==ColMajor) ? 1 : leadingDimension(); } template <typename T, StorageOrder Order, typename I, typename A> typename ConstFullStorageView<T, Order, I, A>::IndexType ConstFullStorageView<T, Order, I, A>::strideCol() const { return (Order==ColMajor) ? leadingDimension() : 1; } template <typename T, StorageOrder Order, typename I, typename A> const typename ConstFullStorageView<T, Order, I, A>::ElementType * ConstFullStorageView<T, Order, I, A>::data() const { return &(this->operator()(_firstRow, _firstCol)); } template <typename T, StorageOrder Order, typename I, typename A> const typename ConstFullStorageView<T, Order, I, A>::Allocator & ConstFullStorageView<T, Order, I, A>::allocator() const { return _allocator; } template <typename T, StorageOrder Order, typename I, typename A> void ConstFullStorageView<T, Order, I, A>::changeIndexBase(IndexType firstRow, IndexType firstCol) { if (_data) { if (Order==RowMajor) { _data = data() - (firstRow*leadingDimension() + firstCol); } if (Order==ColMajor) { _data = data() - (firstCol*leadingDimension() + firstRow); } } _firstRow = firstRow; _firstCol = firstCol; } /// view of fullstorage scheme as an array template <typename T, StorageOrder Order, typename I, typename A> const typename ConstFullStorageView<T, Order, I, A>::ConstArrayView ConstFullStorageView<T, Order, I, A>::arrayView(IndexType firstViewIndex) const { # ifndef NDEBUG if (order==ColMajor) { ASSERT(numRows()==leadingDimension()); } else { ASSERT(numCols()==leadingDimension()); } # endif return ConstArrayView(numCols()*numRows(), data(), IndexType(1), firstViewIndex, allocator()); } // view of rectangular part template <typename T, StorageOrder Order, typename I, typename A> const ConstFullStorageView<T, Order, I, A> ConstFullStorageView<T, Order, I, A>::view(IndexType fromRow, IndexType fromCol, IndexType toRow, IndexType toCol, IndexType firstViewRow, IndexType firstViewCol) const { const IndexType numRows = toRow-fromRow+1; const IndexType numCols = toCol-fromCol+1; # ifndef NDEBUG // prevent an out-of-bound assertion in case a view is empty anyway if ((numRows==0) || (numCols==0)) { return ConstView(numRows, numCols, 0, leadingDimension(), firstViewRow, firstViewCol, allocator()); } # endif ASSERT(fromRow>=firstRow()); ASSERT(fromRow<=toRow); ASSERT(toRow<=lastRow()); ASSERT(fromCol>=firstCol()); ASSERT(fromCol<=toCol); ASSERT(toCol<=lastCol()); return ConstView(numRows, // # rows numCols, // # cols &(this->operator()(fromRow, fromCol)),// data leadingDimension(), // leading dimension firstViewRow, // firstRow firstViewCol, // firstCol allocator()); // allocator } // view of single row template <typename T, StorageOrder Order, typename I, typename A> const typename ConstFullStorageView<T, Order, I, A>::ConstArrayView ConstFullStorageView<T, Order, I, A>::viewRow(IndexType row, IndexType firstViewIndex) const { # ifndef NDEBUG // prevent an out-of-bound assertion in case a view is empty anyway if (numCols()==0) { row = firstRow(); } # endif ASSERT(row>=firstRow()); ASSERT(row<=lastRow()); return ConstArrayView(numCols(), &(this->operator()(row, _firstCol)), strideCol(), firstViewIndex, allocator()); } template <typename T, StorageOrder Order, typename I, typename A> const typename ConstFullStorageView<T, Order, I, A>::ConstArrayView ConstFullStorageView<T, Order, I, A>::viewRow(IndexType row, IndexType firstCol, IndexType lastCol, IndexType stride, IndexType firstViewIndex) const { const IndexType length = (lastCol-firstCol)/stride+1; # ifndef NDEBUG // prevent an out-of-bound assertion in case a view is empty anyway if (length==0) { row = this->firstRow(); firstCol = this->firstCol(); } # endif ASSERT(row>=firstRow()); ASSERT(row<=lastRow()); return ConstArrayView(length, &(this->operator()(row, firstCol)), strideCol()*stride, firstViewIndex, allocator()); } // view of single columns template <typename T, StorageOrder Order, typename I, typename A> const typename ConstFullStorageView<T, Order, I, A>::ConstArrayView ConstFullStorageView<T, Order, I, A>::viewCol(IndexType col, IndexType firstViewIndex) const { # ifndef NDEBUG // prevent an out-of-bound assertion in case a view is empty anyway if (numRows()==0) { col = firstCol(); } # endif ASSERT(col>=firstCol()); ASSERT(col<=lastCol()); return ConstArrayView(numRows(), &(this->operator()(_firstRow, col)), strideRow(), firstViewIndex, allocator()); } template <typename T, StorageOrder Order, typename I, typename A> const typename ConstFullStorageView<T, Order, I, A>::ConstArrayView ConstFullStorageView<T, Order, I, A>::viewCol(IndexType firstRow, IndexType lastRow, IndexType stride, IndexType col, IndexType firstViewIndex) const { const IndexType length = (lastRow-firstRow)/stride+1; # ifndef NDEBUG // prevent an out-of-bound assertion in case a view is empty anyway if (length==0) { firstRow = this->firstRow(); col = this->firstCol(); } # endif ASSERT(col>=firstCol()); ASSERT(col<=lastCol()); return ConstArrayView(length, &(this->operator()(firstRow, col)), strideRow()*stride, firstViewIndex, allocator()); } // view of d-th diagonal template <typename T, StorageOrder Order, typename I, typename A> const typename ConstFullStorageView<T, Order, I, A>::ConstArrayView ConstFullStorageView<T, Order, I, A>::viewDiag(IndexType d, IndexType firstViewIndex) const { IndexType _row = (d>0) ? 0 : -d; IndexType _col = (d>0) ? d : 0; IndexType row = firstRow() + _row; IndexType col = firstCol() + _col; return ConstArrayView(std::min(numRows()-_row, numCols()-_col), &(this->operator()(row,col)), leadingDimension()+1, firstViewIndex, allocator()); } // view of d-th anti-diagonal template <typename T, StorageOrder Order, typename I, typename A> const typename ConstFullStorageView<T, Order, I, A>::ConstArrayView ConstFullStorageView<T, Order, I, A>::viewAntiDiag(IndexType d, IndexType firstViewIndex) const { IndexType _row = (d>0) ? 0 : -d; IndexType _col = (d>0) ? d : 0; IndexType row = firstRow() + _row; IndexType col = firstCol() + _col; return ConstArrayView(std::min(numRows()-_row, numCols()-_col), &(this->operator()(row,lastCol()-col+1)), -leadingDimension()+1, firstViewIndex, allocator()); } } // namespace flens #endif // FLENS_STORAGE_FULLSTORAGE_CONSTFULLSTORAGEVIEW_TCC |