35 #ifndef _BLAZE_MATH_EXPRESSIONS_TSMATTSMATSUBEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_TSMATTSMATSUBEXPR_H_
83 template<
typename MT1
85 class TSMatTSMatSubExpr :
public SparseMatrix< TSMatTSMatSubExpr<MT1,MT2>, true >
86 ,
private MatMatSubExpr
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 ) );
266 template<
typename MT
291 for(
size_t j=0UL; j<(~lhs).
columns(); ++j ) {
292 const RightIterator end( B.end(j) );
293 for( RightIterator element=B.begin(j); element!=end; ++element ) {
294 if(
isDefault( (~lhs)(element->index(),j) ) )
295 (~lhs)(element->index(),j) = -element->value();
297 (~lhs)(element->index(),j) -= element->value();
318 template<
typename MT >
339 const size_t m( rhs.rows() );
340 const size_t n( rhs.columns() );
343 std::vector<size_t> nonzeros( m, 0UL );
344 for(
size_t j=0UL; j<n; ++j )
346 const LeftIterator lend( A.end(j) );
347 const RightIterator rend( B.end(j) );
349 LeftIterator l( A.begin(j) );
350 RightIterator r( B.begin(j) );
352 while( l != lend && r != rend )
354 if( l->index() < r->index() ) {
355 ++nonzeros[l->index()];
358 else if( l->index() > r->index() ) {
359 ++nonzeros[r->index()];
363 ++nonzeros[l->index()];
370 ++nonzeros[l->index()];
375 ++nonzeros[r->index()];
381 for(
size_t i=0UL; i<m; ++i ) {
382 (~lhs).reserve( i, nonzeros[i] );
386 for(
size_t j=0UL; j<n; ++j )
388 const LeftIterator lend( A.end(j) );
389 const RightIterator rend( B.end(j) );
391 LeftIterator l( A.begin(j) );
392 RightIterator r( B.begin(j) );
394 while( l != lend && r != rend )
396 if( l->index() < r->index() ) {
397 (~lhs).append( l->index(), j, l->value() );
400 else if( l->index() > r->index() ) {
401 (~lhs).append( r->index(), j, -r->value() );
405 (~lhs).append( l->index(), j, l->value()-r->value() );
412 (~lhs).append( l->index(), j, l->value() );
417 (~lhs).append( r->index(), j, -r->value() );
438 template<
typename MT >
460 (~lhs).reserve( A.nonZeros() + B.nonZeros() );
463 for(
size_t j=0UL; j<(~lhs).
columns(); ++j )
465 const LeftIterator lend( A.end(j) );
466 const RightIterator rend( B.end(j) );
468 LeftIterator l( A.begin(j) );
469 RightIterator r( B.begin(j) );
471 while( l != lend && r != rend )
473 if( l->index() < r->index() ) {
474 (~lhs).append( l->index(), j, l->value() );
477 else if( l->index() > r->index() ) {
478 (~lhs).append( r->index(), j, -r->value() );
482 (~lhs).append( l->index(), j, l->value()-r->value() );
489 (~lhs).append( l->index(), j, l->value() );
494 (~lhs).append( r->index(), j, -r->value() );
498 (~lhs).finalize( j );
517 template<
typename MT
549 template<
typename MT
623 template<
typename T1
625 inline const TSMatTSMatSubExpr<T1,T2>
631 throw std::invalid_argument(
"Matrix sizes do not match" );
648 template<
typename MT1,
typename MT2 >
649 struct SubmatrixExprTrait< TSMatTSMatSubExpr<MT1,MT2> >
653 typedef typename SubExprTrait< typename SubmatrixExprTrait<const MT1>::Type
654 ,
typename SubmatrixExprTrait<const MT2>::Type >::Type Type;
663 template<
typename MT1,
typename MT2 >
664 struct RowExprTrait< TSMatTSMatSubExpr<MT1,MT2> >
668 typedef typename SubExprTrait< typename RowExprTrait<const MT1>::Type
669 ,
typename RowExprTrait<const MT2>::Type >::Type Type;
678 template<
typename MT1,
typename MT2 >
679 struct ColumnExprTrait< TSMatTSMatSubExpr<MT1,MT2> >
683 typedef typename SubExprTrait< typename ColumnExprTrait<const MT1>::Type
684 ,
typename ColumnExprTrait<const MT2>::Type >::Type Type;
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:87
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: TSMatTSMatSubExpr.h:242
Header file for the subtraction trait.
LeftOperand leftOperand() const
Returns the left-hand side transpose sparse matrix operand.
Definition: TSMatTSMatSubExpr.h:208
ResultType::OppositeType OppositeType
Result type with opposite storage order for expression template evaluations.
Definition: TSMatTSMatSubExpr.h:116
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: TSMatTSMatSubExpr.h:187
MT1::CompositeType CT1
Composite type of the left-hand side sparse matrix expression.
Definition: TSMatTSMatSubExpr.h:95
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
MT1::ReturnType RN1
Return type of the left-hand side sparse matrix expression.
Definition: TSMatTSMatSubExpr.h:93
SubTrait< RT1, RT2 >::Type ResultType
Result type for expression template evaluations.
Definition: TSMatTSMatSubExpr.h:115
Header file for the Computation base class.
TSMatTSMatSubExpr(const MT1 &lhs, const MT2 &rhs)
Constructor for the TSMatTSMatSubExpr class.
Definition: TSMatTSMatSubExpr.h:139
Header file for the RequiresEvaluation type trait.
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
ResultType::ElementType ElementType
Resulting element type.
Definition: TSMatTSMatSubExpr.h:118
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
Header file for the IsTemporary type trait class.
RightOperand rhs_
Right-hand side sparse matrix of the subtraction expression.
Definition: TSMatTSMatSubExpr.h:250
TSMatTSMatSubExpr< MT1, MT2 > This
Type of this TSMatTSMatSubExpr instance.
Definition: TSMatTSMatSubExpr.h:114
RightOperand rightOperand() const
Returns the right-hand side transpose sparse matrix operand.
Definition: TSMatTSMatSubExpr.h:218
#define BLAZE_CONSTRAINT_MUST_BE_COLUMN_MAJOR_MATRIX_TYPE(T)
Constraint on the data type.In case the given data type T is not a column-major dense or sparse matri...
Definition: StorageOrder.h:161
const SelectType< returnExpr, ExprReturnType, ElementType >::Type ReturnType
Return type for expression template evaluations.
Definition: TSMatTSMatSubExpr.h:121
MT2::ResultType RT2
Result type of the right-hand side sparse matrix expression.
Definition: TSMatTSMatSubExpr.h:92
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
Header file for the MatMatSubExpr base class.
size_t columns() const
Returns the current number of columns of the matrix.
Definition: TSMatTSMatSubExpr.h:177
size_t nonZeros(size_t i) const
Returns the number of non-zero elements in the specified row.
Definition: TSMatTSMatSubExpr.h:198
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: TSMatTSMatSubExpr.h:117
Constraints on the storage order of matrix types.
Evaluation of the return type of a subtraction expression.Via this type trait it is possible to evalu...
Definition: SubExprTrait.h:103
Header file for the SelectType class template.
Header file for the RowExprTrait class template.
Header file for all forward declarations for expression class templates.
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: TSMatTSMatSubExpr.h:230
MT2::CompositeType CT2
Composite type of the right-hand side sparse matrix expression.
Definition: TSMatTSMatSubExpr.h:96
Compile time check for resizable data types.This type trait tests whether the given data type is a re...
Definition: IsResizable.h:75
const ResultType CompositeType
Data type for composite expression templates.
Definition: TSMatTSMatSubExpr.h:124
Header file for the SubmatrixExprTrait class template.
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
MT1::ResultType RT1
Result type of the left-hand side sparse matrix expression.
Definition: TSMatTSMatSubExpr.h:91
Header file for run time assertion macros.
SelectType< IsExpression< MT1 >::value, const MT1, const MT1 & >::Type LeftOperand
Composite type of the left-hand side sparse matrix expression.
Definition: TSMatTSMatSubExpr.h:127
Expression object for transpose sparse matrix-transpose sparse matrix subtractions.The TSMatTSMatSubExpr class represents the compile time expression for subtractions between two column-major sparse matrices.
Definition: Forward.h:142
SubExprTrait< RN1, RN2 >::Type ExprReturnType
Expression return type for the subscript operator.
Definition: TSMatTSMatSubExpr.h:109
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
const DenseIterator< Type > operator-(const DenseIterator< Type > &it, ptrdiff_t inc)
Subtraction between a DenseIterator and an integral value.
Definition: DenseIterator.h:585
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
size_t rows() const
Returns the current number of rows of the matrix.
Definition: TSMatTSMatSubExpr.h:167
Header file for the isDefault shim.
SelectType< IsExpression< MT2 >::value, const MT2, const MT2 & >::Type RightOperand
Composite type of the right-hand side sparse matrix expression.
Definition: TSMatTSMatSubExpr.h:130
Header file for the RemoveReference type trait.
Header file for the IsComputation type trait class.
ReturnType operator()(size_t i, size_t j) const
2D-access to the matrix elements.
Definition: TSMatTSMatSubExpr.h:155
#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
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.
MT2::ReturnType RN2
Return type of the right-hand side sparse matrix expression.
Definition: TSMatTSMatSubExpr.h:94
Base template for the SubTrait class.
Definition: SubTrait.h:141
LeftOperand lhs_
Left-hand side sparse matrix of the subtraction expression.
Definition: TSMatTSMatSubExpr.h:249
Header file for the IsResizable type trait.
Header file for the SubExprTrait class template.
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.