35 #ifndef _BLAZE_MATH_EXPRESSIONS_SVECSVECSUBEXPR_H_
36 #define _BLAZE_MATH_EXPRESSIONS_SVECSVECSUBEXPR_H_
89 template<
typename VT1
92 class SVecSVecSubExpr :
public SparseVector< SVecSVecSubExpr<VT1,VT2,TF>, TF >
93 ,
private VecVecSubExpr
126 template<
typename VT >
127 struct UseSMPAssign {
128 enum :
bool { value = VT::smpAssignable };
155 enum :
bool { smpAssignable =
false };
188 inline ReturnType
at(
size_t index )
const {
189 if( index >=
lhs_.size() ) {
192 return (*
this)[index];
201 inline size_t size() const noexcept {
242 template<
typename T >
243 inline bool canAlias(
const T* alias )
const noexcept {
244 return (
lhs_.canAlias( alias ) ||
rhs_.canAlias( alias ) );
254 template<
typename T >
255 inline bool isAliased(
const T* alias )
const noexcept {
256 return (
lhs_.isAliased( alias ) ||
rhs_.isAliased( alias ) );
279 template<
typename VT >
290 CT1 x(
serial( rhs.lhs_ ) );
291 CT2 y(
serial( rhs.rhs_ ) );
297 const LeftIterator lend( x.end() );
298 const RightIterator rend( y.end() );
300 for( LeftIterator l=x.begin(); l!=lend; ++l ) {
301 (~lhs)[l->index()] = l->value();
304 for( RightIterator r=y.begin(); r!=rend; ++r ) {
306 (~lhs)[r->index()] = -r->value();
308 (~lhs)[r->index()] -= r->value();
327 template<
typename VT >
338 CT1 x(
serial( rhs.lhs_ ) );
339 CT2 y(
serial( rhs.rhs_ ) );
345 const LeftIterator lend( x.end() );
346 const RightIterator rend( y.end() );
348 for( LeftIterator l=x.begin(); l!=lend; ++l ) {
349 (~lhs)[l->index()] = l->value();
352 for( RightIterator r=y.begin(); r!=rend; ++r ) {
353 (~lhs)[r->index()] -= r->value();
371 template<
typename VT >
372 friend inline void assign( SparseVector<VT,TF>& lhs,
const SVecSVecSubExpr& rhs )
378 typedef ConstIterator_< RemoveReference_<CT1> > LeftIterator;
379 typedef ConstIterator_< RemoveReference_<CT2> > RightIterator;
381 CT1 x(
serial( rhs.lhs_ ) );
382 CT2 y(
serial( rhs.rhs_ ) );
388 const LeftIterator lend( x.end() );
389 const RightIterator rend( y.end() );
391 LeftIterator l( x.begin() );
392 RightIterator r( y.begin() );
394 while( l != lend && r != rend )
396 if( l->index() < r->index() ) {
397 (~lhs).append( l->index(), l->value() );
400 else if( l->index() > r->index() ) {
401 (~lhs).append( r->index(), -r->value() );
405 (~lhs).append( l->index(), l->value() - r->value() );
412 (~lhs).append( l->index(), l->value() );
417 (~lhs).append( r->index(), -r->value() );
436 template<
typename VT >
437 friend inline void addAssign( DenseVector<VT,TF>& lhs,
const SVecSVecSubExpr& rhs )
443 addAssign( ~lhs, rhs.lhs_ );
444 subAssign( ~lhs, rhs.rhs_ );
465 template<
typename VT >
466 friend inline void subAssign( DenseVector<VT,TF>& lhs,
const SVecSVecSubExpr& rhs )
472 subAssign( ~lhs, rhs.lhs_ );
473 addAssign( ~lhs, rhs.rhs_ );
494 template<
typename VT >
495 friend inline void multAssign( DenseVector<VT,TF>& lhs,
const SVecSVecSubExpr& rhs )
505 const ResultType tmp(
serial( rhs ) );
506 multAssign( ~lhs, tmp );
537 template<
typename VT >
538 friend inline EnableIf_< UseSMPAssign<VT> >
570 template<
typename VT >
571 friend inline EnableIf_< UseSMPAssign<VT> >
603 template<
typename VT >
604 friend inline EnableIf_< UseSMPAssign<VT> >
615 const ResultType tmp( rhs );
670 template<
typename T1
673 inline const SVecSVecSubExpr<T1,T2,TF>
678 if( (~lhs).
size() != (~rhs).
size() ) {
697 template<
typename VT1,
typename VT2,
bool TF >
698 struct Size< SVecSVecSubExpr<VT1,VT2,TF> >
699 :
public Max< Size<VT1>, Size<VT2> >
715 template<
typename VT1,
typename VT2,
bool TF,
bool AF >
716 struct SubvectorExprTrait< SVecSVecSubExpr<VT1,VT2,TF>, AF >
720 using Type = SubExprTrait_< SubvectorExprTrait_<const VT1,AF>
721 , SubvectorExprTrait_<const VT2,AF> >;
#define BLAZE_THROW_INVALID_ARGUMENT(MESSAGE)
Macro for the emission of a std::invalid_argument exception.This macro encapsulates the default way o...
Definition: Exception.h:235
Header file for auxiliary alias declarations.
Header file for the Max class template.
Header file for mathematical functions.
bool canAlias(const T *alias) const noexcept
Returns whether the expression can alias with the given address alias.
Definition: SVecSVecSubExpr.h:243
Compile time check whether the given type is a temporary vector or matrix type.This type trait class ...
Definition: IsTemporary.h:70
Header file for the subtraction trait.
SubExprTrait_< RN1, RN2 > ExprReturnType
Expression return type for the subscript operator.
Definition: SVecSVecSubExpr.h:116
Header file for basic type definitions.
Header file for the SparseVector base class.
SVecSVecSubExpr(const VT1 &lhs, const VT2 &rhs) noexcept
Constructor for the SVecSVecSubExpr class.
Definition: SVecSVecSubExpr.h:161
CompositeType_< VT1 > CT1
Composite type of the left-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:102
LeftOperand leftOperand() const noexcept
Returns the left-hand side sparse vector operand.
Definition: SVecSVecSubExpr.h:221
EnableIf_< IsDenseMatrix< MT1 > > smpSubAssign(Matrix< MT1, SO1 > &lhs, const Matrix< MT2, SO2 > &rhs)
Default implementation of the SMP subtraction assignment of a matrix to dense matrix.
Definition: DenseMatrix.h:160
Header file for the serial shim.
BLAZE_ALWAYS_INLINE size_t size(const Vector< VT, TF > &vector) noexcept
Returns the current size/dimension of the vector.
Definition: Vector.h:258
LeftOperand lhs_
Left-hand side sparse vector of the subtraction expression.
Definition: SVecSVecSubExpr.h:262
const ResultType CompositeType
Data type for composite expression templates.
Definition: SVecSVecSubExpr.h:144
EnableIf_< IsDenseVector< VT1 > > smpMultAssign(Vector< 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:193
typename DisableIf< Condition, T >::Type DisableIf_
Auxiliary type for the DisableIf class template.The DisableIf_ alias declaration provides a convenien...
Definition: DisableIf.h:223
const ElementType_< MT > min(const DenseMatrix< MT, SO > &dm)
Returns the smallest element of the dense matrix.
Definition: DenseMatrix.h:1669
const DMatSerialExpr< MT, SO > serial(const DenseMatrix< MT, SO > &dm)
Forces the serial evaluation of the given dense matrix expression dm.
Definition: DMatSerialExpr.h:723
Header file for the Computation base class.
const DenseIterator< Type, AF > operator-(const DenseIterator< Type, AF > &it, ptrdiff_t inc) noexcept
Subtraction between a DenseIterator and an integral value.
Definition: DenseIterator.h:731
ElementType_< ResultType > ElementType
Resulting element type.
Definition: SVecSVecSubExpr.h:138
size_t size() const noexcept
Returns the current size/dimension of the vector.
Definition: SVecSVecSubExpr.h:201
typename T::ResultType ResultType_
Alias declaration for nested ResultType type definitions.The ResultType_ alias declaration provides a...
Definition: Aliases.h:323
EnableIf_< IsDenseMatrix< MT1 > > smpAddAssign(Matrix< 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:129
ResultType_< VT1 > RT1
Result type of the left-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:98
ReturnType at(size_t index) const
Checked access to the vector elements.
Definition: SVecSVecSubExpr.h:188
bool isDefault(const DiagonalProxy< MT > &proxy)
Returns whether the represented element is in default state.
Definition: DiagonalProxy.h:573
Constraint on the data type.
typename IfTrue< Condition, T1, T2 >::Type IfTrue_
Auxiliary alias declaration for the IfTrue class template.The IfTrue_ alias declaration provides a co...
Definition: If.h:109
typename T::ReturnType ReturnType_
Alias declaration for nested ReturnType type definitions.The ReturnType_ alias declaration provides a...
Definition: Aliases.h:343
typename SubExprTrait< T1, T2 >::Type SubExprTrait_
Auxiliary alias declaration for the SubExprTrait class template.The SubExprTrait_ alias declaration p...
Definition: SubExprTrait.h:220
typename T::CompositeType CompositeType_
Alias declaration for nested CompositeType type definitions.The CompositeType_ alias declaration prov...
Definition: Aliases.h:83
Header file for the DisableIf class template.
Header file for the IsTemporary type trait class.
RightOperand rightOperand() const noexcept
Returns the right-hand side sparse vector operand.
Definition: SVecSVecSubExpr.h:231
Namespace of the Blaze C++ math library.
Definition: Blaze.h:57
Header file for the If class template.
Expression object for sparse vector-sparse vector subtractions.The SVecSVecSubExpr class represents t...
Definition: Forward.h:123
#define BLAZE_THROW_OUT_OF_RANGE(MESSAGE)
Macro for the emission of a std::out_of_range exception.This macro encapsulates the default way of Bl...
Definition: Exception.h:331
ReturnType operator[](size_t index) const
Subscript operator for the direct access to the vector elements.
Definition: SVecSVecSubExpr.h:175
bool isAliased(const T *alias) const noexcept
Returns whether the expression is aliased with the given address alias.
Definition: SVecSVecSubExpr.h:255
typename T::ElementType ElementType_
Alias declaration for nested ElementType type definitions.The ElementType_ alias declaration provides...
Definition: Aliases.h:163
Base class for N-dimensional dense vectors.The DenseVector class is a base class for all arbitrarily ...
Definition: DenseVector.h:70
ReturnType_< VT1 > RN1
Return type of the left-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:100
#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:61
CompositeType_< VT2 > CT2
Composite type of the right-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:103
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:60
ResultType_< VT2 > RT2
Result type of the right-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:99
Header file for the exception macros of the math module.
SubTrait_< RT1, RT2 > ResultType
Result type for expression template evaluations.
Definition: SVecSVecSubExpr.h:136
Header file for the VecVecSubExpr base class.
Header file for all forward declarations for expression class templates.
Constraint on the data type.
Header file for the EnableIf class template.
Header file for run time assertion macros.
ReturnType_< VT2 > RN2
Return type of the right-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:101
typename If< T1, T2, T3 >::Type If_
Auxiliary alias declaration for the If class template.The If_ alias declaration provides a convenient...
Definition: If.h:160
Header file for the isDefault shim.
TransposeType_< ResultType > TransposeType
Transpose type for expression template evaluations.
Definition: SVecSVecSubExpr.h:137
Header file for the RemoveReference type trait.
typename EnableIf< Condition, T >::Type EnableIf_
Auxiliary alias declaration for the EnableIf class template.The EnableIf_ alias declaration provides ...
Definition: EnableIf.h:223
const IfTrue_< returnExpr, ExprReturnType, ElementType > ReturnType
Return type for expression template evaluations.
Definition: SVecSVecSubExpr.h:141
size_t nonZeros() const
Returns the number of non-zero elements in the sparse vector.
Definition: SVecSVecSubExpr.h:211
Constraint on the data type.
typename T::ConstIterator ConstIterator_
Alias declaration for nested ConstIterator type definitions.The ConstIterator_ alias declaration prov...
Definition: Aliases.h:103
SVecSVecSubExpr< VT1, VT2, TF > This
Type of this SVecSVecSubExpr instance.
Definition: SVecSVecSubExpr.h:135
#define BLAZE_CONSTRAINT_MUST_FORM_VALID_VECVECSUBEXPR(T1, T2)
Constraint on the data type.In case the given data types T1 and T2 do not form a valid vector/vector ...
Definition: VecVecSubExpr.h:109
Header file for the IsComputation type trait class.
typename SubTrait< T1, T2 >::Type SubTrait_
Auxiliary alias declaration for the SubTrait class template.The SubTrait_ alias declaration provides ...
Definition: SubTrait.h:245
RightOperand rhs_
Right-hand side sparse vector of the subtraction expression.
Definition: SVecSVecSubExpr.h:263
Base class for sparse vectors.The SparseVector class is a base class for all arbitrarily sized (N-dim...
Definition: Forward.h:110
#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
Header file for the SubvectorExprTrait class template.
typename T::TransposeType TransposeType_
Alias declaration for nested TransposeType type definitions.The TransposeType_ alias declaration prov...
Definition: Aliases.h:403
If_< IsExpression< VT1 >, const VT1, const VT1 & > LeftOperand
Composite type of the left-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:147
Header file for the IsResizable type trait.
Header file for the SubExprTrait class template.
If_< IsExpression< VT2 >, const VT2, const VT2 & > RightOperand
Composite type of the right-hand side sparse vector expression.
Definition: SVecSVecSubExpr.h:150
Header file for the Size type trait.
#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:63
#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.