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NumericalSemiring Struct Reference
[Semiring]

NumericalSemiring is the set of semirings implemented with usual operations (+, *). More...

Inheritance diagram for NumericalSemiring:

Inheritance graph
[legend]
List of all members.

Public Types

typedef NumericalSemiring self_t
 Exact type of the most derivated type in the hierarchy.


Public Member Functions

bool can_choose_non_stareable (SELECTOR(T)) const
 Indicate wether it is possible or not to call choose_non_stareable.

Element< NumericalSemiring,
T > 
choose_stareable (SELECTOR(T)) const
 Return a randomly choosed stareable weight.

Element< NumericalSemiring,
T > 
choose_non_stareable (SELECTOR(T)) const
 Return a randomly choosed non-stareable weight.

Element< NumericalSemiring,
T > 
identity (SELECTOR(T)) const
 returns the identity of the monoid (if mul_kind).

Element< NumericalSemiring,
T > 
zero (SELECTOR(T)) const
 returns the zero of the monoid (if add_kind).

bool contains (const Element< NumericalSemiring, T > &elt) const
 Check if a given element is compatible with the structural element.

bool contains (const Element< OtherS, T > &other) const
 Specialization of containts that always return false.

bool contains (const T &elt_value) const
 Check if an anonymous value is compatible with a structural element.

Element< NumericalSemiring,
T > 
choose (SELECTOR(T)) const
 Choose randomly an element in the structure.

self_tself ()
 Accessor to the real type.


Detailed Description

NumericalSemiring is the set of semirings implemented with usual operations (+, *).


Member Function Documentation

bool contains const Element< OtherS, T > &    other const [inherited]
 

Specialization of containts that always return false.

Indeed, elements structured by a particular type are always incompatible with structural elements of another type.

self_t& self   [inherited]
 

Accessor to the real type.

This accessor is intended to be used by implementations in this class and derivated structures to obtain a reference to the structural element with its most derivated type.


Generated on Tue Jul 1 18:19:22 2003 for Vaucanson by doxygen1.3-rc3