$extrastylesheet
Olena  User documentation 2.1
An Image Processing Platform
 All Classes Namespaces Functions Variables Typedefs Enumerations Enumerator Friends Groups Pages
mln::accu::count_value< V > Struct Template Reference

#include <mln/accu/count_value.hh>

Public Member Functions

 count_value ()
 count_value (const V &ref)
bool is_valid () const
unsigned subj_ ()
void take_as_init (const T &t)
void take_as_init_ (const T &t)
void take_n_times (unsigned n, const T &t)
void take_n_times_ (unsigned n, const T &t)
unsigned to_result () const
void init ()
void take (const argument &)
void take (const count_value< V > &other)
void untake (const argument &)
void untake (const count_value< V > &other)
void set_value (unsigned c)

Protected Attributes

unsigned count_
ref_
bool valid_

Public Types

typedef V argument
typedef Accumulator< void > category
typedef count_value< V > exact_t
typedef unsigned q_result
typedef mln::metal::unqualif
< unsigned >::ret 
result

Detailed Description

template<typename V>
struct mln::accu::count_value< V >

Define an accumulator that counts the occurrence of a given value.

Definition at line 72 of file count_value.hh.

Constructor & Destructor Documentation

template<typename V>
mln::accu::count_value< V >::count_value ( )
template<typename V>
mln::accu::count_value< V >::count_value ( const V &  ref)
explicit

Member Function Documentation

template<typename V>
void mln::accu::count_value< V >::init ( )

Manipulators.

template<typename V>
bool mln::accu::count_value< V >::is_valid ( ) const

Check whether this accu is able to return a result.

Always true here.

template<typename V>
void mln::accu::count_value< V >::set_value ( unsigned  c)

Force the value of the counter to c.

unsigned mln::accu::internal::base< unsigned , count_value< V > >::subj_ ( )
inherited
template<typename V>
void mln::accu::count_value< V >::take ( const argument )
template<typename V>
void mln::accu::count_value< V >::take ( const count_value< V > &  other)
void mln::Accumulator< count_value< V > >::take_as_init ( const T t)
inherited

Take as initialization the value t.

void mln::Accumulator< count_value< V > >::take_as_init_ ( const T t)
inherited

INTERNAL_API

Default implementation of "take as initialization".

void mln::Accumulator< count_value< V > >::take_n_times ( unsigned  n,
const T t 
)
inherited

Take n times the value t.

void mln::Accumulator< count_value< V > >::take_n_times_ ( unsigned  n,
const T t 
)
inherited

INTERNAL_API

Default implementation of "take n times".

template<typename V>
unsigned mln::accu::count_value< V >::to_result ( ) const

Get the value of the accumulator.

template<typename V>
void mln::accu::count_value< V >::untake ( const argument )
template<typename V>
void mln::accu::count_value< V >::untake ( const count_value< V > &  other)

Member Data Documentation

template<typename V>
unsigned mln::accu::count_value< V >::count_
protected

The value of the counter.

Definition at line 101 of file count_value.hh.

template<typename V>
V mln::accu::count_value< V >::ref_
protected

The value which must be counted.

Definition at line 103 of file count_value.hh.

template<typename V>
bool mln::accu::count_value< V >::valid_
protected

Set to false if the reference value is not set.

Definition at line 106 of file count_value.hh.

Member Typedef Documentation

template<typename V>
typedef V mln::accu::count_value< V >::argument

Definition at line 75 of file count_value.hh.

typedef Accumulator<void> mln::Accumulator< count_value< V > >::category
inherited

Definition at line 64 of file accumulator.hh.

typedef count_value< V > mln::Object< count_value< V > >::exact_t
inherited

Definition at line 105 of file object.hh.

Definition at line 58 of file base.hh.

typedef mln::metal::unqualif< unsigned >::ret mln::accu::internal::base< unsigned , count_value< V > >::result
inherited

Definition at line 59 of file base.hh.