35 #ifndef _BLAZE_MATH_EXPRESSIONS_SVECSVECSUBEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SVECSVECSUBEXPR_H_
85 template<
typename VT1
88 class SVecSVecSubExpr :
public SparseVector< SVecSVecSubExpr<VT1,VT2,TF>, TF >
89 ,
private VecVecSubExpr
139 enum { smpAssignable = 0 };
181 return min(
lhs_.size(),
lhs_.nonZeros() +
rhs_.nonZeros() );
211 template<
typename T >
213 return (
lhs_.canAlias( alias ) ||
rhs_.canAlias( alias ) );
223 template<
typename T >
225 return (
lhs_.isAliased( alias ) ||
rhs_.isAliased( alias ) );
248 template<
typename VT >
266 const LeftIterator lend( x.end() );
267 const RightIterator rend( y.end() );
269 for( LeftIterator l=x.begin(); l!=lend; ++l ) {
270 (~lhs)[l->index()] = l->value();
273 for( RightIterator r=y.begin(); r!=rend; ++r ) {
275 (~lhs)[r->index()] = -r->value();
277 (~lhs)[r->index()] -= r->value();
296 template<
typename VT >
314 const LeftIterator lend( x.end() );
315 const RightIterator rend( y.end() );
317 for( LeftIterator l=x.begin(); l!=lend; ++l ) {
318 (~lhs)[l->index()] = l->value();
321 for( RightIterator r=y.begin(); r!=rend; ++r ) {
322 (~lhs)[r->index()] -= r->value();
340 template<
typename VT >
357 const LeftIterator lend( x.end() );
358 const RightIterator rend( y.end() );
360 LeftIterator l( x.begin() );
361 RightIterator r( y.begin() );
363 while( l != lend && r != rend )
365 if( l->index() < r->index() ) {
366 (~lhs).append( l->index(), l->value() );
369 else if( l->index() > r->index() ) {
370 (~lhs).append( r->index(), -r->value() );
374 (~lhs).append( l->index(), l->value() - r->value() );
381 (~lhs).append( l->index(), l->value() );
386 (~lhs).append( r->index(), -r->value() );
405 template<
typename VT >
434 template<
typename VT >
463 template<
typename VT >
528 template<
typename T1
531 inline const SVecSVecSubExpr<T1,T2,TF>
536 if( (~lhs).size() != (~rhs).size() )
537 throw std::invalid_argument(
"Vector sizes do not match" );
554 template<
typename VT1,
typename VT2,
bool TF,
bool AF >
555 struct SubvectorExprTrait< SVecSVecSubExpr<VT1,VT2,TF>, AF >
559 typedef typename SubExprTrait< typename SubvectorExprTrait<const VT1,AF>::Type
560 ,
typename SubvectorExprTrait<const VT2,AF>::Type >::Type Type;
Header file for mathematical functions.
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:87
Header file for the subtraction trait.
Header file for the SparseVector base class.
RightOperand rhs_
Right-hand side sparse vector of the subtraction expression.
Definition: SVecSVecSubExpr.h:232
void smpSubAssign(DenseMatrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP subtraction assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:151
bool isDefault(const DynamicMatrix< Type, SO > &m)
Returns whether the given dense matrix is in default state.
Definition: DynamicMatrix.h:4622
Efficient implementation of a compressed matrix.The CompressedMatrix class template is the represent...
Definition: CompressedMatrix.h:197
void smpMultAssign(DenseVector< VT1, TF1 > &lhs, const Vector< VT2, TF2 > &rhs)
Default implementation of the SMP multiplication assignment of a vector to a dense vector...
Definition: DenseVector.h:178
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:2384
Type ElementType
Type of the sparse matrix elements.
Definition: CompressedMatrix.h:249
bool canAlias(const T *alias) const
Returns whether the expression can alias with the given address alias.
Definition: SVecSVecSubExpr.h:212
ResultType::TransposeType TransposeType
Transpose type for expression template evaluations.
Definition: SVecSVecSubExpr.h:121
Header file for the Computation base class.
VT2::ResultType RT2
Result type of the right-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:95
const SelectType< returnExpr, ExprReturnType, ElementType >::Type ReturnType
Return type for expression template evaluations.
Definition: SVecSVecSubExpr.h:125
Constraint on the data type.
bool isAliased(const T *alias) const
Returns whether the expression is aliased with the given address alias.
Definition: SVecSVecSubExpr.h:224
void smpAddAssign(DenseMatrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP addition assignment of a matrix to a dense matrix.
Definition: DenseMatrix.h:121
const This & CompositeType
Data type for composite expression templates.
Definition: CompressedMatrix.h:251
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 DisableIf class template.
Header file for the IsTemporary type trait class.
Header file for the dense vector SMP implementation.
Expression object for sparse vector-sparse vector subtractions.The SVecSVecSubExpr class represents t...
Definition: Forward.h:116
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecSVecSubExpr.h:180
const Element * ConstIterator
Iterator over constant elements.
Definition: CompressedMatrix.h:2388
VT1::CompositeType CT1
Composite type of the left-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:98
RightOperand rightOperand() const
Returns the right-hand side sparse vector operand.
Definition: SVecSVecSubExpr.h:200
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
VT1::TransposeType TT1
Transpose type of the left-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:100
VT2::CompositeType CT2
Composite type of the right-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:99
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
#define BLAZE_CONSTRAINT_MUST_BE_SPARSE_VECTOR_TYPE(T)
Constraint on the data type.In case the given data type T is not a sparse, N-dimensional vector type...
Definition: SparseVector.h:79
Constraint on the data type.
#define BLAZE_CONSTRAINT_MUST_BE_REFERENCE_TYPE(T)
Constraint on the data type.In case the given data type T is not a reference type, a compilation error is created.
Definition: Reference.h:78
CompressedMatrix< Type, false > TransposeType
Transpose type for expression template evaluations.
Definition: CompressedMatrix.h:2381
Evaluation of the return type of a subtraction expression.Via this type trait it is possible to evalu...
Definition: SubExprTrait.h:103
LeftOperand leftOperand() const
Returns the left-hand side sparse vector operand.
Definition: SVecSVecSubExpr.h:190
void multAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the multiplication assignment of a matrix to a matrix.
Definition: Matrix.h:269
Header file for the VecVecSubExpr base class.
Header file for the SelectType class template.
Header file for all forward declarations for expression class templates.
Constraint on the data type.
SelectType< IsExpression< VT1 >::value, const VT1, const VT1 & >::Type LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:131
SubExprTrait< RN1, RN2 >::Type ExprReturnType
Expression return type for the subscript operator.
Definition: SVecSVecSubExpr.h:114
Header file for the EnableIf class template.
SelectType< IsExpression< VT2 >::value, const VT2, const VT2 & >::Type RightOperand
Composite type of the right-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:134
SVecSVecSubExpr(const VT1 &lhs, const VT2 &rhs)
Constructor for the SVecSVecSubExpr class.
Definition: SVecSVecSubExpr.h:145
const ResultType CompositeType
Data type for composite expression templates.
Definition: SVecSVecSubExpr.h:128
LeftOperand lhs_
Left-hand side sparse vector of the subtraction expression.
Definition: SVecSVecSubExpr.h:231
const Type & ReturnType
Return type for expression template evaluations.
Definition: CompressedMatrix.h:2383
Removal of reference modifiers.The RemoveCV type trait removes any reference modifiers from the given...
Definition: RemoveReference.h:69
Header file for run time assertion macros.
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
Substitution Failure Is Not An Error (SFINAE) class.The EnableIf class template is an auxiliary tool ...
Definition: EnableIf.h:184
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
Header file for the isDefault shim.
VT1::ResultType RT1
Result type of the left-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:94
size_t size() const
Returns the current size/dimension of the vector.
Definition: SVecSVecSubExpr.h:170
Header file for the RemoveReference type trait.
Substitution Failure Is Not An Error (SFINAE) class.The DisableIf class template is an auxiliary tool...
Definition: DisableIf.h:184
VT1::ReturnType RN1
Return type of the left-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:96
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecSVecSubExpr.h:159
Header file for the IsComputation type trait class.
VT2::TransposeType TT2
Transpose type of the right-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:101
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:105
VT2::ReturnType RN2
Return type of the right-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:97
#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
SVecSVecSubExpr< VT1, VT2, TF > This
Type of this SVecSVecSubExpr instance.
Definition: SVecSVecSubExpr.h:119
This ResultType
Result type for expression template evaluations.
Definition: CompressedMatrix.h:2379
Header file for basic type definitions.
Header file for the SubvectorExprTrait class template.
Base template for the SubTrait class.
Definition: SubTrait.h:141
ResultType::ElementType ElementType
Resulting element type.
Definition: SVecSVecSubExpr.h:122
SubTrait< RT1, RT2 >::Type ResultType
Result type for expression template evaluations.
Definition: SVecSVecSubExpr.h:120
Header file for the IsResizable type trait.
Header file for the SubExprTrait class template.
#define BLAZE_CONSTRAINT_MUST_BE_VECTOR_WITH_TRANSPOSE_FLAG(T, TF)
Constraint on the data type.In case the given data type T is not a dense or sparse vector type and in...
Definition: TransposeFlag.h:238
#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
Header file for the IsExpression type trait class.
Header file for the FunctionTrace class.