mlir::presburger::Fraction Struct Reference

A class to represent fractions. More...

#include "mlir/Analysis/Presburger/Fraction.h"

Public Member Functions
	Fraction ()=default
	Default constructor initializes the represented rational number to zero.
	Fraction (const DynamicAPInt &oNum, const DynamicAPInt &oDen=DynamicAPInt(1))
	Construct a Fraction from a numerator and denominator.
	Fraction (const DynamicAPInt &num, int64_t den)
	Overloads for passing literals.
	Fraction (int64_t num, const DynamicAPInt &den=DynamicAPInt(1))
	Fraction (int64_t num, int64_t den)
DynamicAPInt	getAsInteger () const
llvm::raw_ostream &	print (llvm::raw_ostream &os) const

Public Attributes
DynamicAPInt	num {0}
	The numerator and denominator, respectively.
DynamicAPInt	den {1}

Detailed Description

A class to represent fractions.

The sign of the fraction is represented in the sign of the numerator; the denominator is always positive.

Note that overflows may occur if the numerator or denominator are not representable by 64-bit integers.

Definition at line 29 of file Fraction.h.

Constructor & Destructor Documentation

Fraction() [1/5]

mlir::presburger::Fraction::Fraction ( )

default

Default constructor initializes the represented rational number to zero.

Referenced by Fraction(), Fraction(), and Fraction().

Fraction() [2/5]

mlir::presburger::Fraction::Fraction ( const DynamicAPInt & oNum, const DynamicAPInt & oDen = DynamicAPInt(1) )

inline

Construct a Fraction from a numerator and denominator.

Definition at line 34 of file Fraction.h.

References den, and num.

Fraction() [3/5]

mlir::presburger::Fraction::Fraction ( const DynamicAPInt & num, int64_t den )

inline

Overloads for passing literals.

Definition at line 42 of file Fraction.h.

References den, Fraction(), and num.

Fraction() [4/5]

mlir::presburger::Fraction::Fraction ( int64_t num, const DynamicAPInt & den = DynamicAPInt(1) )

inline

Definition at line 44 of file Fraction.h.

References den, Fraction(), and num.

Fraction() [5/5]

mlir::presburger::Fraction::Fraction ( int64_t num, int64_t den )

inline

Definition at line 46 of file Fraction.h.

References den, Fraction(), and num.

Member Function Documentation

getAsInteger()

DynamicAPInt mlir::presburger::Fraction::getAsInteger ( ) const

inline

Definition at line 51 of file Fraction.h.

References den, and num.

Referenced by mlir::presburger::IntMatrix::determinant(), and mlir::presburger::LexSimplex::findIntegerLexMin().

print()

llvm::raw_ostream & mlir::presburger::Fraction::print ( llvm::raw_ostream & os ) const

inline

Definition at line 56 of file Fraction.h.

References den, and num.

Referenced by mlir::presburger::operator<<().

Member Data Documentation

den

DynamicAPInt mlir::presburger::Fraction::den {1}

Definition at line 62 of file Fraction.h.

Referenced by mlir::presburger::abs(), mlir::presburger::ceil(), mlir::presburger::compare(), mlir::presburger::floor(), Fraction(), Fraction(), Fraction(), Fraction(), getAsInteger(), mlir::presburger::operator*(), mlir::presburger::operator+(), mlir::presburger::operator-(), mlir::presburger::operator-(), mlir::presburger::operator/(), print(), mlir::presburger::reduce(), and mlir::presburger::round().

num

DynamicAPInt mlir::presburger::Fraction::num {0}

The numerator and denominator, respectively.

The denominator is always positive.

Definition at line 62 of file Fraction.h.

Referenced by mlir::presburger::abs(), mlir::presburger::ceil(), mlir::presburger::compare(), mlir::presburger::floor(), Fraction(), Fraction(), Fraction(), Fraction(), getAsInteger(), mlir::presburger::operator*(), mlir::presburger::operator+(), mlir::presburger::operator-(), mlir::presburger::operator-(), mlir::presburger::operator/(), print(), mlir::presburger::reduce(), and mlir::presburger::round().

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

• include/mlir/Analysis/Presburger/Fraction.h