SemiringBase Struct Template Reference
[Semiring]

SemiringBase is the base class for all structures that are semirings. More...

Inheritance diagram for SemiringBase:

[legend]List of all members.

Public Types
typedef Self	self_t
	Exact type of the most derivated type in the hierarchy.
Public Member Functions
template<class T> bool	can_choose_non_starable (SELECTOR(T)) const
	Indicate wether it is possible or not to call choose_non_starable.
template<class T> Element< Self, T >	choose_starable (SELECTOR(T)) const
	Return a randomly choosed starable semiring element.
template<class T> Element< Self, T >	choose_non_starable (SELECTOR(T)) const
	Return a randomly choosed non-starable semiring element.
template<typename T> Element< Self, T >	identity (SELECTOR(T)) const
	Returns the identity of the monoid (if mul_kind).
template<typename T> Element< Self, T >	zero (SELECTOR(T)) const
	Returns the zero of the monoid (if add_kind).
bool	contains (const Element< Self, 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< Self, T >	choose (SELECTOR(T)) const
	Choose randomly an element in the structure.
self_t &	self ()
	Accessor to the real type.
Protected Member Functions
	SemiringBase ()
	Default constructor is protected since it is an abstract class.
	SemiringBase (const SemiringBase &other)
	Copy constructor is protected since it is an abstract class.

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Detailed Description

template<class Self>
struct vcsn::algebra::SemiringBase< Self >

SemiringBase is the base class for all structures that are semirings.

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Member Function Documentation

bool can_choose_non_starable (  SELECTOR(T)   )  const

Indicate wether it is possible or not to call choose_non_starable. There's no need for can_choose_starable, since Zero is always starable and therefor can be choosen.

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.

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