FilterCore< IT > Struct Template Reference

#include "lib/itertools.hpp"

Description

template<class IT>
struct lib::FilterCore< IT >

Implementation of the filter logic.

This core stores a function object instance, passing each pulled source element to this predicate function for evaluation.

Note

predicate is evaluated at most once for each value yielded by the source

Definition at line 279 of file itertools.hpp.

Public Types
using	Raw = IdentityCore< IT >
using	Val = iter::Yield< IT >
Public Types inherited from IdentityCore< IT >
using	pointer = IT::pointer
using	reference = IT::reference
using	value_type = IT::value_type

Public Attributes
function< bool(Val)>	predicate_
bool	cached_
bool	isOK_
Public Attributes inherited from IdentityCore< IT >
IT	source_

Public Member Functions
bool	evaluate () const
bool	currVal_isOK () const
	<
void	advance ()
template<typename PRED >
	FilterCore (IT &&source, PRED prediDef)
template<typename PRED >
	FilterCore (IT const &source, PRED prediDef)
Public Member Functions inherited from IdentityCore< IT >
	IdentityCore (IT &&orig)
	IdentityCore (IT const &orig)
IT &	pipe ()
IT const &	pipe () const
void	advance ()
bool	evaluate () const

Constructor & Destructor Documentation

FilterCore() [1/2]

template<class IT >

template<typename PRED >

FilterCore ( IT &&  source, PRED  prediDef  )

inline

Definition at line 316 of file itertools.hpp.

FilterCore() [2/2]

template<class IT >

template<typename PRED >

FilterCore ( IT const &  source, PRED  prediDef  )

inline

Definition at line 324 of file itertools.hpp.

Member Typedef Documentation

Raw

template<class IT >

using Raw = IdentityCore<IT>

Definition at line 282 of file itertools.hpp.

Val

template<class IT >

using Val = iter::Yield<IT>

Definition at line 283 of file itertools.hpp.

Member Function Documentation

evaluate()

template<class IT >

bool evaluate ( ) const

inline

Definition at line 289 of file itertools.hpp.

References FilterCore< IT >::currVal_isOK().

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currVal_isOK()

template<class IT >

bool currVal_isOK ( ) const

inline

<

Returns

(maybe cached) result of filter predicate

Definition at line 300 of file itertools.hpp.

References FilterCore< IT >::cached_, FilterCore< IT >::isOK_, and FilterCore< IT >::predicate_.

Referenced by FilterCore< IT >::evaluate().

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advance()

template<class IT >

void advance ( )

inline

Definition at line 308 of file itertools.hpp.

References FilterCore< IT >::cached_.

Member Data Documentation

predicate_

template<class IT >

function<bool(Val)> predicate_

Definition at line 286 of file itertools.hpp.

Referenced by FilterCore< IT >::currVal_isOK().

cached_

template<class IT >

bool cached_

mutable

Definition at line 296 of file itertools.hpp.

Referenced by FilterCore< IT >::advance(), and FilterCore< IT >::currVal_isOK().

isOK_

template<class IT >

bool isOK_

mutable

Definition at line 297 of file itertools.hpp.

Referenced by FilterCore< IT >::currVal_isOK().

Inheritance diagram for FilterCore< IT >:

Collaboration diagram for FilterCore< IT >:

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The documentation for this struct was generated from the following file:

• itertools.hpp