Traits.hpp

/*
 * This file is part of bogus, a C++ sparse block matrix library.
 *
 * Copyright 2013 Gilles Daviet <gdaviet@gmail.com>
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/

#ifndef BOGUS_BLOCK_TRAITS_HPP
#define BOGUS_BLOCK_TRAITS_HPP

#include <vector>

namespace bogus {

template< typename Derived >
struct BlockMatrixTraits { } ;

template< typename ElementType >
struct ResizableSequenceContainer {
    typedef std::vector< ElementType > Type ;
    enum { is_mutable = 1 } ;
} ;

template< typename BlockType >
struct BlockTraits
{
   typedef typename BlockType::Scalar Scalar ;
   typedef BlockType TransposeStorageType ;

    enum {
       RowsAtCompileTime = BlockType::RowsAtCompileTime,
       ColsAtCompileTime = BlockType::ColsAtCompileTime,

       uses_plain_array_storage = 0,
       is_row_major = false,
       is_self_transpose = 0
    }  ;
} ;

// Transpose, blobk-matrix/vector and block/block product return types
// Specialization of these structures should define a ReturnType if the operation is allowed

template< typename BlockType >
struct BlockTransposeTraits {} ;


template< typename VectorType >
struct BlockVectorProductTraits {} ;

template< typename LhsBlockType, typename RhsBlockType, bool TransposeLhs, bool TransposeRhs >
struct BlockBlockProductTraits {
    typedef LhsBlockType ReturnType ;
} ;

} // namespace bogus

#endif