fract.cxx File Reference

#include <tools/fract.hxx>
#include <tools/debug.hxx>
#include <o3tl/hash_combine.hxx>
#include <o3tl/safeint.hxx>
#include <sal/log.hxx>
#include <osl/diagnose.h>
#include <algorithm>
#include <cmath>
#include <numeric>
#include <boost/rational.hpp>

Include dependency graph for fract.cxx:

Go to the source code of this file.

Functions
static boost::rational< sal_Int32 >	rational_FromDouble (double dVal)
static void	rational_ReduceInaccurate (boost::rational< sal_Int32 > &rRational, unsigned nSignificantBits)
static int	impl_NumberOfBits (sal_uInt32 nNum)
	Find the number of bits required to represent this number, using the CLZ intrinsic. More...
static boost::rational< sal_Int32 >	toRational (sal_Int32 n, sal_Int32 d)
static constexpr bool	isOutOfRange (sal_Int64 nNum)
Fraction	operator+ (const Fraction &rVal1, const Fraction &rVal2)
Fraction	operator- (const Fraction &rVal1, const Fraction &rVal2)
Fraction	operator* (const Fraction &rVal1, const Fraction &rVal2)
Fraction	operator/ (const Fraction &rVal1, const Fraction &rVal2)
bool	operator!= (const Fraction &rVal1, const Fraction &rVal2)
bool	operator<= (const Fraction &rVal1, const Fraction &rVal2)
bool	operator>= (const Fraction &rVal1, const Fraction &rVal2)
bool	operator== (const Fraction &rVal1, const Fraction &rVal2)
bool	operator< (const Fraction &rVal1, const Fraction &rVal2)
bool	operator> (const Fraction &rVal1, const Fraction &rVal2)

Function Documentation

impl_NumberOfBits()

static int impl_NumberOfBits ( sal_uInt32  nNum )

static

Find the number of bits required to represent this number, using the CLZ intrinsic.

Definition at line 412 of file fract.cxx.

Referenced by rational_ReduceInaccurate().

isOutOfRange()

static constexpr bool isOutOfRange ( sal_Int64  nNum )

staticconstexpr

Definition at line 52 of file fract.cxx.

Referenced by Fraction::Fraction().

operator!=()

bool operator!=	(	const Fraction &	rVal1,
		const Fraction &	rVal2
	)

Definition at line 340 of file fract.cxx.

References SAL_WARN.

operator*()

Fraction operator*	(	const Fraction &	rVal1,
		const Fraction &	rVal2
	)

Definition at line 326 of file fract.cxx.

operator+()

Fraction operator+	(	const Fraction &	rVal1,
		const Fraction &	rVal2
	)

Definition at line 312 of file fract.cxx.

References SAL_WARN.

operator-()

Fraction operator-	(	const Fraction &	rVal1,
		const Fraction &	rVal2
	)

Definition at line 319 of file fract.cxx.

operator/()

Fraction operator/	(	const Fraction &	rVal1,
		const Fraction &	rVal2
	)

Definition at line 333 of file fract.cxx.

operator<()

bool operator<	(	const Fraction &	rVal1,
		const Fraction &	rVal2
	)

Definition at line 366 of file fract.cxx.

operator<=()

bool operator<=	(	const Fraction &	rVal1,
		const Fraction &	rVal2
	)

Definition at line 345 of file fract.cxx.

operator==()

bool operator==	(	const Fraction &	rVal1,
		const Fraction &	rVal2
	)

Definition at line 355 of file fract.cxx.

operator>()

bool operator>	(	const Fraction &	rVal1,
		const Fraction &	rVal2
	)

Definition at line 377 of file fract.cxx.

operator>=()

bool operator>=	(	const Fraction &	rVal1,
		const Fraction &	rVal2
	)

Definition at line 350 of file fract.cxx.

rational_FromDouble()

static boost::rational< sal_Int32 > rational_FromDouble ( double  dVal )

static

Definition at line 393 of file fract.cxx.

References abs().

Referenced by Fraction::Fraction().

rational_ReduceInaccurate()

static void rational_ReduceInaccurate ( boost::rational< sal_Int32 > &  rRational, unsigned  nSignificantBits  )

static

Definition at line 443 of file fract.cxx.

References DBG_ASSERT, and impl_NumberOfBits().

Referenced by Fraction::ReduceInaccurate().

toRational()

static boost::rational< sal_Int32 > toRational ( sal_Int32  n, sal_Int32  d  )

static

Definition at line 41 of file fract.cxx.

References d, and n.

Referenced by Fraction::MakeFraction(), Fraction::operator double(), Fraction::operator sal_Int32(), Fraction::operator*=(), Fraction::operator+=(), Fraction::operator-=(), Fraction::operator/=(), and Fraction::ReduceInaccurate().