CDPL.Math.SparseLVector Class Reference

Unbounded sparse vector holding signed integers of type long. More...

Inheritance diagram for CDPL.Math.SparseLVector:

Public Member Functions
None	__init__ ()
	Constructs an empty sparse vector (size zero, no stored entries).
None	__init__ (SparseLVector v)
	Move-constructs from v (v is left in a valid empty state). More...
None	__init__ (int n)
	Constructs a sparse vector of size n with no stored entries (every position reads as the default value). More...
None	__init__ (ConstFVectorExpression e)
	Initializes the SparseLVector instance. More...
None	__init__ (ConstDVectorExpression e)
	Initializes the SparseLVector instance. More...
None	__init__ (ConstLVectorExpression e)
	Initializes the SparseLVector instance. More...
None	__init__ (ConstULVectorExpression e)
	Initializes the SparseLVector instance. More...
None	__init__ (object a)
	Initializes the SparseLVector instance. More...
None	resize (int n)
	Resizes the logical element count to n, dropping any stored entries at indices beyond n. More...
None	clear ()
	Removes all explicitly stored entries (the logical size remains unchanged).
int	getNumElements ()
	Returns the number of explicitly stored (non-default) entries. More...
int	getObjectID ()
	Returns the numeric identifier (ID) of the wrapped C++ class instance. More...
SparseLVector	assign (ConstFVectorExpression e)
	Resizes this vector to match e and assigns the elements of e without intermediate temporary. More...
SparseLVector	assign (ConstDVectorExpression e)
	Resizes this vector to match e and assigns the elements of e without intermediate temporary. More...
SparseLVector	assign (ConstLVectorExpression e)
	Resizes this vector to match e and assigns the elements of e without intermediate temporary. More...
SparseLVector	assign (ConstULVectorExpression e)
	Resizes this vector to match e and assigns the elements of e without intermediate temporary. More...
SparseLVector	assign (SparseLVector v)
	Move-assigns the contents of v to this sparse vector. More...
None	assign (object a)
	Replaces the current state of self with a copy of the state of the object instance a. More...
bool	isEmpty ()
	Tells whether the vector's logical size is zero. More...
int	getSize ()
	Returns the logical element count. More...
int	getElement (int i)
object	toArray ()
None	swap (SparseLVector v)
	Swaps the contents of this sparse vector with those of v. More...
None	setElement (int i, int v)
bool	__eq__ (SparseLVector v)
	Returns the result of the comparison operation self == v. More...
bool	__eq__ (ConstLVectorExpression e)
	Returns the result of the comparison operation self == e. More...
bool	__ne__ (SparseLVector v)
	Returns the result of the comparison operation self != v. More...
bool	__ne__ (ConstLVectorExpression e)
	Returns the result of the comparison operation self != e. More...
int	__call__ (int i)
	Returns a reference to the element at index i. More...
int	__getitem__ (int i)
int	__len__ ()
str	__str__ ()
	Returns a string representation of the SparseLVector instance. More...
SparseLVector	__pos__ ()
ConstLVectorExpression	__neg__ ()
ConstLVectorExpression	__add__ (ConstLVectorExpression e)
	Returns the result of the addition operation self + e. More...
ConstLVectorExpression	__sub__ (ConstLVectorExpression e)
	Returns the result of the subtraction operation self - e. More...
ConstLVectorExpression	__mul__ (int t)
	Returns the result of the multiplication operation self * t. More...
ConstLVectorExpression	__mul__ (ConstLMatrixExpression e)
	Returns the result of the multiplication operation self * e. More...
ConstLVectorExpression	__div__ (int t)
	Returns the result of the division operation self // t. More...
ConstLVectorExpression	__truediv__ (int t)
	Returns the result of the true division operation self / t. More...
ConstLVectorExpression	__rmul__ (int t)
	Returns the result of the multiplication operation t * self. More...
None	__setitem__ (int i, int v)
SparseLVector	__iadd__ (SparseLVector v)
	Performs the in-place addition operation self += v. More...
SparseLVector	__iadd__ (ConstLVectorExpression e)
	Performs the in-place addition operation self += e. More...
SparseLVector	__isub__ (SparseLVector v)
	Performs the in-place subtraction operation self -= v. More...
SparseLVector	__isub__ (ConstLVectorExpression e)
	Performs the in-place subtraction operation self -= e. More...
SparseLVector	__imul__ (int t)
	Performs the in-place multiplication operation self *= t. More...
SparseLVector	__idiv__ (int t)
	Performs the in-place division operation self /= t. More...
SparseLVector	__itruediv__ (int t)

Properties
	objectID = property(getObjectID)
	size = property(getSize)
	numElements = property(getNumElements)

Detailed Description

Unbounded sparse vector holding signed integers of type long.

Constructor & Destructor Documentation

__init__() [1/7]

None CDPL.Math.SparseLVector.__init__

(

SparseLVector

v

)

Move-constructs from v (v is left in a valid empty state).

Parameters

v	The sparse vector to move from.

__init__() [2/7]

None CDPL.Math.SparseLVector.__init__

(

int

n

)

Constructs a sparse vector of size n with no stored entries (every position reads as the default value).

Parameters

n	The logical element count.

__init__() [3/7]

None CDPL.Math.SparseLVector.__init__

(

ConstFVectorExpression

e

)

Initializes the SparseLVector instance.

Parameters

e

__init__() [4/7]

None CDPL.Math.SparseLVector.__init__

(

ConstDVectorExpression

e

)

Initializes the SparseLVector instance.

Parameters

e

__init__() [5/7]

None CDPL.Math.SparseLVector.__init__

(

ConstLVectorExpression

e

)

Initializes the SparseLVector instance.

Parameters

e

__init__() [6/7]

None CDPL.Math.SparseLVector.__init__

(

ConstULVectorExpression

e

)

Initializes the SparseLVector instance.

Parameters

e

__init__() [7/7]

None CDPL.Math.SparseLVector.__init__

(

object

a

)

Initializes the SparseLVector instance.

Parameters

a

Member Function Documentation

resize()

None CDPL.Math.SparseLVector.resize

(

int

n

)

Resizes the logical element count to n, dropping any stored entries at indices beyond n.

Parameters

n	The new logical element count.

getNumElements()

int CDPL.Math.SparseLVector.getNumElements

(

)

Returns the number of explicitly stored (non-default) entries.

Returns

The number of stored entries.

getObjectID()

int CDPL.Math.SparseLVector.getObjectID

(

)

Returns the numeric identifier (ID) of the wrapped C++ class instance.

Different Python SparseLVector instances may reference the same underlying C++ class instance. The commonly used Python expression a is not b thus cannot tell reliably whether the two SparseLVector instances a and b reference different C++ objects. The numeric identifier returned by this method allows to correctly implement such an identity test via the simple expression a.getObjectID() != b.getObjectID().

Returns

The numeric ID of the internally referenced C++ class instance.

assign() [1/6]

SparseLVector CDPL.Math.SparseLVector.assign

(

ConstFVectorExpression

e

)

Resizes this vector to match e and assigns the elements of e without intermediate temporary.

Parameters

e	The source vector expression.

Returns

self

assign() [2/6]

SparseLVector CDPL.Math.SparseLVector.assign

(

ConstDVectorExpression

e

)

Resizes this vector to match e and assigns the elements of e without intermediate temporary.

Parameters

e	The source vector expression.

Returns

self

assign() [3/6]

SparseLVector CDPL.Math.SparseLVector.assign

(

ConstLVectorExpression

e

)

Resizes this vector to match e and assigns the elements of e without intermediate temporary.

Parameters

e	The source vector expression.

Returns

self

assign() [4/6]

SparseLVector CDPL.Math.SparseLVector.assign

(

ConstULVectorExpression

e

)

Resizes this vector to match e and assigns the elements of e without intermediate temporary.

Parameters

e	The source vector expression.

Returns

self

assign() [5/6]

SparseLVector CDPL.Math.SparseLVector.assign

(

SparseLVector

v

)

Move-assigns the contents of v to this sparse vector.

Parameters

v	The source sparse vector (left in a valid but unspecified state).

Returns

self

assign() [6/6]

None CDPL.Math.SparseLVector.assign

(

object

a

)

Replaces the current state of self with a copy of the state of the object instance a.

Parameters

a	The object instance to copy.

Returns

self

isEmpty()

bool CDPL.Math.SparseLVector.isEmpty

(

)

Tells whether the vector's logical size is zero.

Returns

True if the logical size is zero, and False otherwise.

getSize()

int CDPL.Math.SparseLVector.getSize

(

)

Returns the logical element count.

Returns

The number of elements.

getElement()

int CDPL.Math.SparseLVector.getElement

(

int

i

)

Parameters

i

Returns

toArray()

object CDPL.Math.SparseLVector.toArray

(

)

Returns

swap()

None CDPL.Math.SparseLVector.swap

(

SparseLVector

v

)

Swaps the contents of this sparse vector with those of v.

Parameters

v	The sparse vector to swap with.

setElement()

None CDPL.Math.SparseLVector.setElement	(	int	i,
		int	v
	)

Parameters

i
v

__eq__() [1/2]

bool CDPL.Math.SparseLVector.__eq__

(

SparseLVector

v

)

Returns the result of the comparison operation self == v.

Parameters

v	The SparseLVector instance to be compared with.

Returns

The result of the comparison operation.

__eq__() [2/2]

bool CDPL.Math.SparseLVector.__eq__

(

ConstLVectorExpression

e

)

Returns the result of the comparison operation self == e.

Parameters

e	The ConstLVectorExpression instance to be compared with.

Returns

The result of the comparison operation.

__ne__() [1/2]

bool CDPL.Math.SparseLVector.__ne__

(

SparseLVector

v

)

Returns the result of the comparison operation self != v.

Parameters

v	The SparseLVector instance to be compared with.

Returns

The result of the comparison operation.

__ne__() [2/2]

bool CDPL.Math.SparseLVector.__ne__

(

ConstLVectorExpression

e

)

Returns the result of the comparison operation self != e.

Parameters

e	The ConstLVectorExpression instance to be compared with.

Returns

The result of the comparison operation.

__call__()

int CDPL.Math.SparseLVector.__call__

(

int

i

)

Returns a reference to the element at index i.

Parameters

i	The zero-based element index.

Returns

A reference to the stored value, or to the zero element if no entry exists at i.

Exceptions

Base.IndexError

if i is out of range.

__getitem__()

int CDPL.Math.SparseLVector.__getitem__

(

int

i

)

Parameters

i

Returns

__len__()

int CDPL.Math.SparseLVector.__len__

(

)

Returns

__str__()

str CDPL.Math.SparseLVector.__str__

(

)

Returns a string representation of the SparseLVector instance.

Returns

The generated string representation.

__pos__()

SparseLVector CDPL.Math.SparseLVector.__pos__

(

)

Returns

__neg__()

ConstLVectorExpression CDPL.Math.SparseLVector.__neg__

(

)

Returns

__add__()

ConstLVectorExpression CDPL.Math.SparseLVector.__add__

(

ConstLVectorExpression

e

)

Returns the result of the addition operation self + e.

Parameters

e	Specifies the second addend.

Returns

A ConstLVectorExpression instance holding the result of the addition.

__sub__()

ConstLVectorExpression CDPL.Math.SparseLVector.__sub__

(

ConstLVectorExpression

e

)

Returns the result of the subtraction operation self - e.

Parameters

e	Specifies the subtrahend.

Returns

A SparseLVector instance holding the result of the subtraction.

__mul__() [1/2]

ConstLVectorExpression CDPL.Math.SparseLVector.__mul__

(

int

t

)

Returns the result of the multiplication operation self * t.

Parameters

t	Specifies the multiplier.

Returns

A ConstLVectorExpression instance holding the result of the multiplication.

__mul__() [2/2]

ConstLVectorExpression CDPL.Math.SparseLVector.__mul__

(

ConstLMatrixExpression

e

)

Returns the result of the multiplication operation self * e.

Parameters

e	Specifies the multiplier.

Returns

A ConstLVectorExpression instance holding the result of the multiplication.

__div__()

ConstLVectorExpression CDPL.Math.SparseLVector.__div__

(

int

t

)

Returns the result of the division operation self // t.

Parameters

t	Specifies the divisor.

Returns

A ConstLVectorExpression instance holding the result of the division.

__truediv__()

ConstLVectorExpression CDPL.Math.SparseLVector.__truediv__

(

int

t

)

Returns the result of the true division operation self / t.

Parameters

t	Specifies the divisor.

Returns

A ConstLVectorExpression instance holding the result of the division.

__rmul__()

ConstLVectorExpression CDPL.Math.SparseLVector.__rmul__

(

int

t

)

Returns the result of the multiplication operation t * self.

Parameters

t	Specifies the multiplicand.

Returns

A ConstLVectorExpression instance holding the result of the multiplication.

__setitem__()

None CDPL.Math.SparseLVector.__setitem__	(	int	i,
		int	v
	)

Parameters

i
v

__iadd__() [1/2]

SparseLVector CDPL.Math.SparseLVector.__iadd__

(

SparseLVector

v

)

Performs the in-place addition operation self += v.

Parameters

v	Specifies the second addend.

Returns

The updated SparseLVector instance self.

__iadd__() [2/2]

SparseLVector CDPL.Math.SparseLVector.__iadd__

(

ConstLVectorExpression

e

)

Performs the in-place addition operation self += e.

Parameters

e	Specifies the second addend.

Returns

The updated SparseLVector instance self.

__isub__() [1/2]

SparseLVector CDPL.Math.SparseLVector.__isub__

(

SparseLVector

v

)

Performs the in-place subtraction operation self -= v.

Parameters

v	Specifies the subtrahend.

Returns

The updated SparseLVector instance self.

__isub__() [2/2]

SparseLVector CDPL.Math.SparseLVector.__isub__

(

ConstLVectorExpression

e

)

Performs the in-place subtraction operation self -= e.

Parameters

e	Specifies the subtrahend.

Returns

The updated SparseLVector instance self.

__imul__()

SparseLVector CDPL.Math.SparseLVector.__imul__

(

int

t

)

Performs the in-place multiplication operation self *= t.

Parameters

t	Specifies the multiplier.

Returns

The updated SparseLVector instance self.

__idiv__()

SparseLVector CDPL.Math.SparseLVector.__idiv__

(

int

t

)

Performs the in-place division operation self /= t.

Parameters

t	Specifies the divisor.

Returns

The updated SparseLVector instance self.

__itruediv__()

SparseLVector CDPL.Math.SparseLVector.__itruediv__

(

int

t

)

Parameters

t

Returns