Represent a rational number (fraction) as a numerator and denominator. More...

#include <rational.hpp>

Classes
class	zero_denominator
	Exception class if the denominator is ever zero. More...

Public Types
typedef T	value_type
	Convenience typedef for the integral type of the numerator and denominator.

Public Member Functions
	rational (value_type num=0)

	rational (value_type num, value_type den)

	rational (double r)

template<class U >
	rational (rational< U > const &that)
	Copy from a different type of rational.

value_type	numerator () const
	Return the numerator.

value_type	denominator () const
	Return the denominator.

template<class U >
U	as () const
	Convert the rational number to another type, especially floating-point.

rational &	operator= (value_type)
	Assignment of an integer.

template<class U >
rational &	operator= (rational< U > const &rhs)
	Assignment of a rational with a different size.

rational &	operator+= (rational const &rhs)
	Addition assignment operator.

rational &	operator+= (value_type const &rhs)
	Addition assignment operator.

rational &	operator-= (rational const &rhs)
	Subtraction assignment operator.

rational &	operator-= (value_type const &rhs)
	Subtraction assignment operator.

rational &	operator*= (rational const &rhs)
	Multiplication assignment operator.

rational &	operator*= (value_type const &rhs)
	Multiplication assignment operator.

rational &	operator/= (rational const &rhs)
	Division assignment operator.

rational &	operator/= (value_type const &rhs)
	Division assignment operator.

rational &	operator++ ()
	Pre-increment.

rational &	operator-- ()
	Pre-decrement.

rational	operator++ (int)
	Post-increment.

rational	operator-- (int)
	Post-decrement.

template<class U >
T	scale (U value)

template<class U >
rational< T > &	operator= (rational< U > const &rhs)

Detailed Description

Represent a rational number (fraction) as a numerator and denominator.

Definition at line 16 of file rational.hpp.

Constructor & Destructor Documentation

template<class T>

rational< T >::rational ( value_type num = 0 )

inline

Default constructor and constructor from a single value. As a default constructor, initializes to zero. Otherwise, initializes to the integer num.

Parameters

num	The integer value to use as the initial value

Definition at line 33 of file rational.hpp.

template<class T >

Construct a rational number

Parameters

num	numerator
den	denominator

Exceptions

zero_denominator if den == 0

Definition at line 106 of file rational.hpp.

template<class T >

rational< T >::rational ( double r )

Initialize the rational number with an approximation of r

Parameters

r	the initial value

Definition at line 114 of file rational.hpp.

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