FractionTraits Concept Reference

Definition

A model of FractionTraits is associated with a type Type.

In case the associated type is a Fraction, a model of FractionTraits provides the relevant functionality for decomposing and re-composing as well as the numerator and denominator type.

Has models

CGAL::Fraction_traits<T>

See also

FractionTraits_::Decompose

FractionTraits_::Compose

FractionTraits_::CommonFactor

Types
typedef unspecified_type	Type
	The associated type.
typedef unspecified_type	Is_fraction
	Tag indicating whether the associated type is a fraction and can be decomposed into a numerator and denominator.
typedef unspecified_type	Numerator_type
	The type to represent the numerator.
typedef unspecified_type	Denominator_type
	The (simpler) type to represent the denominator.

Functors
In case Type is not a Fraction all functors are Null_functor.
typedef unspecified_type	Compose
	A model of FractionTraits_::Compose.
typedef unspecified_type	Decompose
	A model of FractionTraits_::Decompose.
typedef unspecified_type	Common_factor
	A model of FractionTraits_::CommonFactor.

Member Typedef Documentation

Denominator_type

typedef unspecified_type FractionTraits::Denominator_type

The (simpler) type to represent the denominator.

This is undefined in case the associated type is not a fraction.

Is_fraction

typedef unspecified_type FractionTraits::Is_fraction

Tag indicating whether the associated type is a fraction and can be decomposed into a numerator and denominator.

This is either CGAL::Tag_true or CGAL::Tag_false.

Numerator_type

typedef unspecified_type FractionTraits::Numerator_type

The type to represent the numerator.

This is undefined in case the associated type is not a fraction.