apron::linexpr1::const_iterator Class Reference

Iterator to traverse a constant linexpr1. More...

#include <apxx_linexpr1.hh>

Inherited by apron::linexpr1::iterator.

Public Member Functions
	const_iterator (const linexpr1 &e)
	Starts a new iterator to traverse the linear expression. More...
	const_iterator (const const_iterator &i)
	Duplicates the iterator. More...
const_iterator &	operator= (const const_iterator &i)
	Assigns the iterator. More...
const var &	get_var () const
	Returns the variable name of the coefficient at the current iterator position. More...
ap_dim_t	get_dim () const
	Returns the dimension of the coefficient at the current iterator position. More...
const coeff &	get_coeff () const
	Returns a reference to the coefficient at the current iterator position. More...
void	next ()
	Moves the iterator to the following position. More...
void	operator++ ()
	Moves the iterator to the following position. More...
bool	valid () const
	Whether we are at a valid position (true) or past the last iterator position (false). More...

Protected Member Functions
void	skip_AP_DIM_MAX ()
	Internal use only. Skips free coefficients in sparse expressions. More...
	const_iterator (ap_linexpr1_t *l)
	Internal use only. More...

Protected Attributes
ap_linexpr1_t *	l
	Internal use only. Pointer to the underlying APRON structure. More...
ap_dim_t	pos
	Internal use only. Current index. More...

Detailed Description

Iterator to traverse a constant linexpr1.

At each position, there is variable name and its corresponding coefficients. The expression is traversed in increasing order of integer variable names followed by real variable names also in increasing order.

To mutate a linear expression, use the iterator class instead.

Sample code:

for (linexpr1::const_iterator i = m.begin();i.valid();++i) cout << i.get_coeff() << " "; 

Constructor & Destructor Documentation

const_iterator() [1/3]

apron::linexpr1::const_iterator::const_iterator ( ap_linexpr1_t *  l )

inlineprotected

Internal use only.

const_iterator() [2/3]

linexpr1::const_iterator::const_iterator ( const linexpr1 &  e )

inline

Starts a new iterator to traverse the linear expression.

const_iterator() [3/3]

linexpr1::const_iterator::const_iterator ( const const_iterator &  i )

inline

Duplicates the iterator.

Member Function Documentation

get_coeff()

const coeff & linexpr1::const_iterator::get_coeff ( ) const

inline

Returns a reference to the coefficient at the current iterator position.

Exceptions

std::out_of_range

if valid() returns false (we are past the last position).

get_dim()

ap_dim_t linexpr1::const_iterator::get_dim ( ) const

inline

Returns the dimension of the coefficient at the current iterator position.

Exceptions

std::out_of_range

if valid() returns false (we are past the last position).

get_var()

const var & linexpr1::const_iterator::get_var ( ) const

inline

Returns the variable name of the coefficient at the current iterator position.

Exceptions

std::out_of_range

if valid() returns false (we are past the last position).

next()

void linexpr1::const_iterator::next ( )

inline

Moves the iterator to the following position.

operator++()

void linexpr1::const_iterator::operator++ ( )

inline

Moves the iterator to the following position.

(Identical to next()).

operator=()

linexpr1::const_iterator & linexpr1::const_iterator::operator= ( const const_iterator &  i )

inline

Assigns the iterator.

skip_AP_DIM_MAX()

void linexpr1::const_iterator::skip_AP_DIM_MAX ( )

inlineprotected

Internal use only. Skips free coefficients in sparse expressions.

valid()

bool linexpr1::const_iterator::valid ( ) const

inline

Whether we are at a valid position (true) or past the last iterator position (false).

Member Data Documentation

l

ap_linexpr1_t* apron::linexpr1::const_iterator::l

protected

Internal use only. Pointer to the underlying APRON structure.

pos

ap_dim_t apron::linexpr1::const_iterator::pos

protected

Internal use only. Current index.

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The documentation for this class was generated from the following files:

• /home/mine/apron/apronxx/apxx_linexpr1.hh
• /home/mine/apron/apronxx/apxx_linexpr1_inline.hh