35 #ifndef _BLAZE_MATH_EXPRESSIONS_SMATSMATADDEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SMATSMATADDEXPR_H_
83 template<
typename MT1
85 class SMatSMatAddExpr :
public SparseMatrix< SMatSMatAddExpr<MT1,MT2>, false >
86 ,
private MatMatAddExpr
178 return lhs_.columns();
188 return lhs_.nonZeros() +
rhs_.nonZeros();
199 return lhs_.nonZeros(i) +
rhs_.nonZeros(i);
229 template<
typename T >
231 return (
lhs_.canAlias( alias ) ||
rhs_.canAlias( alias ) );
241 template<
typename T >
243 return (
lhs_.isAliased( alias ) ||
rhs_.isAliased( alias ) );
265 template<
typename MT
290 for(
size_t i=0UL; i<(~lhs).
rows(); ++i ) {
291 const RightIterator end( B.end(i) );
292 for( RightIterator element=B.begin(i); element!=end; ++element ) {
293 if(
isDefault( (~lhs)(i,element->index()) ) )
294 (~lhs)(i,element->index()) = element->value();
296 (~lhs)(i,element->index()) += element->value();
316 template<
typename MT >
338 (~lhs).reserve( A.nonZeros() + B.nonZeros() );
341 for(
size_t i=0UL; i<(~lhs).
rows(); ++i )
343 const LeftIterator lend( A.end(i) );
344 const RightIterator rend( B.end(i) );
346 LeftIterator l( A.begin(i) );
347 RightIterator r( B.begin(i) );
349 while( l != lend && r != rend )
351 if( l->index() < r->index() ) {
352 (~lhs).append( i, l->index(), l->value() );
355 else if( l->index() > r->index() ) {
356 (~lhs).append( i, r->index(), r->value() );
360 (~lhs).append( i, l->index(), l->value()+r->value() );
367 (~lhs).append( i, l->index(), l->value() );
372 (~lhs).append( i, r->index(), r->value() );
376 (~lhs).finalize( i );
394 template<
typename MT >
415 const size_t m( rhs.rows() );
416 const size_t n( rhs.columns() );
419 std::vector<size_t> nonzeros( n, 0UL );
420 for(
size_t i=0UL; i<m; ++i )
422 const LeftIterator lend( A.end(i) );
423 const RightIterator rend( B.end(i) );
425 LeftIterator l( A.begin(i) );
426 RightIterator r( B.begin(i) );
428 while( l != lend && r != rend )
430 if( l->index() < r->index() ) {
431 ++nonzeros[l->index()];
434 else if( l->index() > r->index() ) {
435 ++nonzeros[r->index()];
439 ++nonzeros[l->index()];
446 ++nonzeros[l->index()];
451 ++nonzeros[r->index()];
457 for(
size_t j=0UL; j<n; ++j ) {
458 (~lhs).reserve( j, nonzeros[j] );
462 for(
size_t i=0UL; i<m; ++i )
464 const LeftIterator lend( A.end(i) );
465 const RightIterator rend( B.end(i) );
467 LeftIterator l( A.begin(i) );
468 RightIterator r( B.begin(i) );
470 while( l != lend && r != rend )
472 if( l->index() < r->index() ) {
473 (~lhs).append( i, l->index(), l->value() );
476 else if( l->index() > r->index() ) {
477 (~lhs).append( i, r->index(), r->value() );
481 (~lhs).append( i, l->index(), l->value()+r->value() );
488 (~lhs).append( i, l->index(), l->value() );
493 (~lhs).append( i, r->index(), r->value() );
513 template<
typename MT
544 template<
typename MT
617 template<
typename T1
619 inline const SMatSMatAddExpr<T1,T2>
625 throw std::invalid_argument(
"Matrix sizes do not match" );
642 template<
typename MT1,
typename MT2 >
643 struct SubmatrixExprTrait< SMatSMatAddExpr<MT1,MT2> >
647 typedef typename AddExprTrait< typename SubmatrixExprTrait<const MT1>::Type
648 ,
typename SubmatrixExprTrait<const MT2>::Type >::Type Type;
657 template<
typename MT1,
typename MT2 >
658 struct RowExprTrait< SMatSMatAddExpr<MT1,MT2> >
662 typedef typename AddExprTrait< typename RowExprTrait<const MT1>::Type
663 ,
typename RowExprTrait<const MT2>::Type >::Type Type;
672 template<
typename MT1,
typename MT2 >
673 struct ColumnExprTrait< SMatSMatAddExpr<MT1,MT2> >
677 typedef typename AddExprTrait< typename ColumnExprTrait<const MT1>::Type
678 ,
typename ColumnExprTrait<const MT2>::Type >::Type Type;
Evaluation of the return type of an addition expression.Via this type trait it is possible to evaluat...
Definition: AddExprTrait.h:103
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:87
RightOperand rhs_
Right-hand side sparse matrix of the addition expression.
Definition: SMatSMatAddExpr.h:250
LeftOperand leftOperand() const
Returns the left-hand side sparse matrix operand.
Definition: SMatSMatAddExpr.h:208
RightOperand rightOperand() const
Returns the right-hand side sparse matrix operand.
Definition: SMatSMatAddExpr.h:218
bool isDefault(const DynamicMatrix< Type, SO > &m)
Returns whether the given dense matrix is in default state.
Definition: DynamicMatrix.h:4555
Efficient implementation of a compressed matrix.The CompressedMatrix class template is the represent...
Definition: CompressedMatrix.h:196
Header file for the ColumnExprTrait class template.
size_t nonZeros() const
Returns the number of non-zero elements in the sparse matrix.
Definition: SMatSMatAddExpr.h:187
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2375
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:248
Header file for the AddExprTrait class template.
Header file for the Computation base class.
size_t columns() const
Returns the current number of columns of the matrix.
Definition: SMatSMatAddExpr.h:177
SelectType< IsExpression< MT1 >::value, const MT1, const MT1 & >::Type LeftOperand
Composite type of the left-hand side sparse matrix expression.
Definition: SMatSMatAddExpr.h:127
Header file for the RequiresEvaluation type trait.
size_t rows() const
Returns the current number of rows of the matrix.
Definition: SMatSMatAddExpr.h:167
const ResultType CompositeType
Data type for composite expression templates.
Definition: SMatSMatAddExpr.h:124
Base class for dense matrices.The DenseMatrix class is a base class for all dense matrix classes...
Definition: DenseMatrix.h:70
Base class for sparse matrices.The SparseMatrix class is a base class for all sparse matrix classes...
Definition: Forward.h:104
Header file for the SparseMatrix base class.
Constraint on the data type.
Compile time type selection.The SelectType class template selects one of the two given types T1 and T...
Definition: SelectType.h:59
size_t nonZeros(size_t i) const
Returns the number of non-zero elements in the specified row.
Definition: SMatSMatAddExpr.h:198
Header file for the IsTemporary type trait class.
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: SMatSMatAddExpr.h:242
ReturnType operator()(size_t i, size_t j) const
2D-access to the matrix elements.
Definition: SMatSMatAddExpr.h:155
const SelectType< returnExpr, ExprReturnType, ElementType >::Type ReturnType
Return type for expression template evaluations.
Definition: SMatSMatAddExpr.h:121
MT1::ResultType RT1
Result type of the left-hand side sparse matrix expression.
Definition: SMatSMatAddExpr.h:91
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: SMatSMatAddExpr.h:117
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2379
void assign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the assignment of a matrix to a matrix.
Definition: Matrix.h:179
const DenseIterator< Type > operator+(const DenseIterator< Type > &it, ptrdiff_t inc)
Addition between a DenseIterator and an integral value.
Definition: DenseIterator.h:556
Constraints on the storage order of matrix types.
ResultType::OppositeType OppositeType
Result type with opposite storage order for expression template evaluations.
Definition: SMatSMatAddExpr.h:116
MT2::CompositeType CT2
Composite type of the right-hand side sparse matrix expression.
Definition: SMatSMatAddExpr.h:94
Header file for the SelectType class template.
Header file for the RowExprTrait class template.
Header file for all forward declarations for expression class templates.
MT2::ResultType RT2
Result type of the right-hand side sparse matrix expression.
Definition: SMatSMatAddExpr.h:92
MT1::CompositeType CT1
Composite type of the left-hand side sparse matrix expression.
Definition: SMatSMatAddExpr.h:93
Compile time check for resizable data types.This type trait tests whether the given data type is a re...
Definition: IsResizable.h:75
Header file for the SubmatrixExprTrait class template.
#define BLAZE_CONSTRAINT_MUST_BE_ROW_MAJOR_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is not a row-major dense or sparse matrix t...
Definition: StorageOrder.h:81
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:2374
Removal of reference modifiers.The RemoveCV type trait removes any reference modifiers from the given...
Definition: RemoveReference.h:69
MT2::ReturnType RN2
Return type of the right-hand side sparse matrix expression.
Definition: SMatSMatAddExpr.h:96
Header file for run time assertion macros.
Base template for the AddTrait class.
Definition: AddTrait.h:141
Header file for the addition trait.
void addAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the addition assignment of a matrix to a matrix.
Definition: Matrix.h:209
MT1::ReturnType RN1
Return type of the left-hand side sparse matrix expression.
Definition: SMatSMatAddExpr.h:95
AddExprTrait< RN1, RN2 >::Type ExprReturnType
Expression return type for the subscript operator.
Definition: SMatSMatAddExpr.h:109
void subAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the subtraction assignment of a matrix to matrix.
Definition: Matrix.h:239
AddTrait< RT1, RT2 >::Type ResultType
Result type for expression template evaluations.
Definition: SMatSMatAddExpr.h:115
Header file for the isDefault shim.
Header file for the MatMatAddExpr base class.
Header file for the RemoveReference type trait.
ResultType::ElementType ElementType
Resulting element type.
Definition: SMatSMatAddExpr.h:118
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: SMatSMatAddExpr.h:230
SelectType< IsExpression< MT2 >::value, const MT2, const MT2 & >::Type RightOperand
Composite type of the right-hand side sparse matrix expression.
Definition: SMatSMatAddExpr.h:130
Header file for the IsComputation type trait class.
Expression object for sparse matrix-sparse matrix additions.The SMatSMatAddExpr class represents the ...
Definition: Forward.h:93
#define BLAZE_FUNCTION_TRACE
Function trace macro.This macro can be used to reliably trace function calls. In case function tracin...
Definition: FunctionTrace.h:157
This ResultType
Result type for expression template evaluations.
Definition: CompressedMatrix.h:2370
SMatSMatAddExpr(const MT1 &lhs, const MT2 &rhs)
Constructor for the SMatSMatAddExpr class.
Definition: SMatSMatAddExpr.h:139
size_t columns(const Matrix< MT, SO > &m)
Returns the current number of columns of the matrix.
Definition: Matrix.h:154
Header file for basic type definitions.
SMatSMatAddExpr< MT1, MT2 > This
Type of this SMatSMatAddExpr instance.
Definition: SMatSMatAddExpr.h:114
LeftOperand lhs_
Left-hand side sparse matrix of the addition expression.
Definition: SMatSMatAddExpr.h:249
Header file for the IsResizable type trait.
size_t rows(const Matrix< MT, SO > &m)
Returns the current number of rows of the matrix.
Definition: Matrix.h:138
#define BLAZE_INTERNAL_ASSERT(expr, msg)
Run time assertion macro for internal checks.In case of an invalid run time expression, the program execution is terminated. The BLAZE_INTERNAL_ASSERT macro can be disabled by setting the BLAZE_USER_ASSERTION flag to zero or by defining NDEBUG during the compilation.
Definition: Assert.h:101
#define BLAZE_CONSTRAINT_MUST_BE_SPARSE_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is not a sparse, N-dimensional matrix type...
Definition: SparseMatrix.h:79
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.