pm::Rational Class Reference

A class for rational numbers. More...

List of all members.

Public Member Functions
	Rational ()
	Initializes to 0.
	Rational (long num)
	Create a Rational from a long.
	Rational (int num)
	Create a Rational from an int.
	Rational (const AccurateFloat &)
	Create a Rational from an AccurateFloat.
	Rational (const Integer &num, const Integer &den)
	Create a Rational as the quotient of two Integers.
	Rational (long num, long den)
	Create a Rational as the quotient of two longs.
	Rational (const Integer &num, long den)
	Create a Rational as the quotient of an Integer num and a long .
	Rational (long num, const Integer &den)
	Create a Rational as the quotient of a long num and an Integer .
	Rational (double b)
	Create a Rational from a double.
Rational &	set (const char *s)
Rational &	set (mpq_srcptr src)
	for the seldom case of unwrapped GMP objects coexisting with us
std::string	to_string (int base=10) const
	Convert rational to string.
void	swap (Rational &b)
	Swaps the values.
bool	operator! () const
	Comparison with 0.
	operator bool () const
	Comparison with 0.
Rational &	negate ()
	In-place negation.
Rational &	operator+= (const Rational &b)
	Addition operator.
Rational &	operator+= (const Integer &b)
	Addition operator.
Rational &	operator+= (long b)
	Addition operator.
Rational &	operator-= (const Rational &b)
	Subtraction operator.
Rational &	operator-= (const Integer &b)
	Subtraction operator.
Rational &	operator-= (long b)
	Subtraction operator.
Rational &	operator*= (const Rational &b)
	Multiplication operator.
Rational &	operator*= (const Integer &b)
	Multiplication operator.
Rational &	operator*= (long b)
	Multiplication operator.
Rational &	operator/= (const Rational &b)
	Division operator.
Rational &	operator/= (const Integer &b)
	Division operator.
Rational &	operator/= (long b)
	Division operator.
Rational &	operator<<= (unsigned long k)
	Multiply with 2**k.
Rational &	operator>>= (unsigned long k)
	Divide thru 2**k.
int	compare (const Rational &b) const
	Comparison.
int	compare (long b) const
	Comparison.
int	compare (int b) const
	Comparison.
int	compare (const Integer &b) const
	Comparison.
int	compare (double b) const
	Comparison.
Protected Attributes
mpq_t	rep
	GMP's representation.
Friends
void	relocate (Rational *from, Rational *to)
Rational	operator+ (const Rational &a, const Rational &b)
	Addition of two Rationals.
Rational	operator+ (const Rational &a, const Integer &b)
	Addition.
Rational	operator+ (const Rational &a, long b)
	Addition.
Rational	operator- (const Rational &a, const Rational &b)
	Subtraction.
Rational	operator- (const Rational &a, const Integer &b)
	Subtraction.
Rational	operator- (const Integer &a, const Rational &b)
	Subtraction.
Rational	operator- (const Rational &a, long b)
	Subtraction.
Rational	operator- (long a, const Rational &b)
	Subtraction.
Rational	operator- (const Rational &a)
	Subtraction.
Rational	operator* (const Rational &a, const Rational &b)
	Multiplication.
Rational	operator* (const Rational &a, const Integer &b)
	Multiplication.
Rational	operator* (const Rational &a, long b)
	Multiplication.
Rational	operator/ (const Rational &a, const Rational &b)
	Division.
Rational	operator/ (const Rational &a, long b)
	Division.
Rational	operator/ (long a, const Rational &b)
	Division.
Rational	operator/ (const Rational &a, const Integer &b)
	Division.
Rational	operator/ (const Integer &a, const Rational &b)
	Division.
Rational	floor (const Rational &a)
	The floor function.
Rational	ceil (const Rational &a)
	The ceiling function.
Rational	operator<< (const Rational &a, unsigned long k)
	Multiply with 2**k.
Rational	operator>> (const Rational &a, unsigned long k)
	Divide by 2**k.

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Detailed Description

A class for rational numbers.

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Member Function Documentation

Rational& pm::Rational::set

(

const char *

s

)

[inline]

Conversion from a printable representation. Numerator and denominator are expected delimited by `/'. Omitted denominator assumed equal to 1.

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Friends And Related Function Documentation

void relocate	(	Rational *	from,
		Rational *	to
	)			[friend]

Accelerated combination of copy constructor and destructor. Aimed to be used in container classes only!

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

• include/core/polymake/Rational.h