An IEEE 754 floating-point value, including specificiation. More...

#include <ieee_float.h>

Inheritance diagram for ieee_float_valuet:

Collaboration diagram for ieee_float_valuet:

Public Member Functions
	ieee_float_valuet (const ieee_float_spect &_spec)

	ieee_float_valuet (const floatbv_typet &type)

	ieee_float_valuet (const constant_exprt &expr)

	ieee_float_valuet ()

void	negate ()

void	set_sign (bool _sign)

void	make_zero ()

void	make_NaN ()

void	make_plus_infinity ()

void	make_minus_infinity ()

void	make_fltmax ()

void	make_fltmin ()

void	increment (bool distinguish_zero=false)

void	decrement (bool distinguish_zero=false)

bool	is_zero () const

bool	get_sign () const

bool	is_negative () const

bool	is_NaN () const

bool	is_infinity () const

bool	is_normal () const

const mp_integer &	get_exponent () const

const mp_integer &	get_fraction () const

void	unpack (const mp_integer &)

void	from_double (double)

void	from_float (float)

double	to_double () const
	Note that calling from_double -> to_double can return different bit patterns for NaN.

float	to_float () const
	Note that calling from_float -> to_float can return different bit patterns for NaN.

bool	is_double () const

bool	is_float () const

mp_integer	pack () const

void	extract_base2 (mp_integer &_exponent, mp_integer &_fraction) const

void	extract_base10 (mp_integer &_exponent, mp_integer &_fraction) const

mp_integer	to_integer () const

void	print (std::ostream &out) const

std::string	to_ansi_c_string () const

std::string	to_string_decimal (std::size_t precision) const

std::string	to_string_scientific (std::size_t precision) const
	format as [-]d.ddde+-d Note that printf always produces at least two digits for the exponent.

std::string	format (const format_spect &format_spec) const

constant_exprt	to_expr () const

void	from_expr (const constant_exprt &expr)

bool	operator< (const ieee_float_valuet &) const

bool	operator<= (const ieee_float_valuet &) const

bool	operator> (const ieee_float_valuet &) const

bool	operator>= (const ieee_float_valuet &) const

ieee_float_valuet	abs () const

bool	operator== (const ieee_float_valuet &) const

bool	operator!= (const ieee_float_valuet &) const

bool	operator== (int) const

bool	operator== (double) const

bool	operator== (float) const

bool	ieee_equal (const ieee_float_valuet &) const

bool	ieee_not_equal (const ieee_float_valuet &) const

Static Public Member Functions
static ieee_float_valuet	zero (const floatbv_typet &type)

static ieee_float_valuet	zero (const ieee_float_spect &spec)

static ieee_float_valuet	one (const floatbv_typet &)

static ieee_float_valuet	one (const ieee_float_spect &)

static ieee_float_valuet	NaN (const ieee_float_spect &_spec)

static ieee_float_valuet	plus_infinity (const ieee_float_spect &_spec)

static ieee_float_valuet	minus_infinity (const ieee_float_spect &_spec)

static ieee_float_valuet	fltmax (const ieee_float_spect &_spec)

static ieee_float_valuet	fltmin (const ieee_float_spect &_spec)

Public Attributes
ieee_float_spect	spec

Protected Member Functions
void	next_representable (bool greater)
	Sets *this to the next representable number closer to plus infinity (greater = true) or minus infinity (greater = false).

Static Protected Member Functions
static mp_integer	base10_digits (const mp_integer &src)

Protected Attributes
bool	sign_flag

mp_integer	exponent

mp_integer	fraction

bool	NaN_flag

bool	infinity_flag

Detailed Description

An IEEE 754 floating-point value, including specificiation.

Definition at line 116 of file ieee_float.h.

Constructor & Destructor Documentation

◆ ieee_float_valuet() [1/4]

ieee_float_valuet::ieee_float_valuet ( const ieee_float_spect & _spec )

inlineexplicit

Definition at line 121 of file ieee_float.h.

◆ ieee_float_valuet() [2/4]

ieee_float_valuet::ieee_float_valuet ( const floatbv_typet & type )

inlineexplicit

Definition at line 131 of file ieee_float.h.

◆ ieee_float_valuet() [3/4]

ieee_float_valuet::ieee_float_valuet ( const constant_exprt & expr )

inlineexplicit

Definition at line 141 of file ieee_float.h.

◆ ieee_float_valuet() [4/4]

ieee_float_valuet::ieee_float_valuet ( )

inline

Definition at line 146 of file ieee_float.h.

Member Function Documentation

◆ abs()

ieee_float_valuet ieee_float_valuet::abs ( ) const

Definition at line 60 of file ieee_float.cpp.

◆ base10_digits()

mp_integer ieee_float_valuet::base10_digits ( const mp_integer & src )

staticprotected

Definition at line 132 of file ieee_float.cpp.

◆ decrement()

void ieee_float_valuet::decrement ( bool distinguish_zero = false )

inline

Definition at line 242 of file ieee_float.h.

◆ extract_base10()

void ieee_float_valuet::extract_base10	(	mp_integer &	_exponent,
		mp_integer &	_fraction
	)		const

Definition at line 439 of file ieee_float.cpp.

◆ extract_base2()

void ieee_float_valuet::extract_base2	(	mp_integer &	_exponent,
		mp_integer &	_fraction
	)		const

Definition at line 415 of file ieee_float.cpp.

◆ fltmax()

static ieee_float_valuet ieee_float_valuet::fltmax ( const ieee_float_spect & _spec )

inlinestatic

Definition at line 217 of file ieee_float.h.

◆ fltmin()

static ieee_float_valuet ieee_float_valuet::fltmin ( const ieee_float_spect & _spec )

inlinestatic

Definition at line 225 of file ieee_float.h.

◆ format()

std::string ieee_float_valuet::format ( const format_spect & format_spec ) const

Definition at line 72 of file ieee_float.cpp.

◆ from_double()

void ieee_float_valuet::from_double ( double d )

Definition at line 1277 of file ieee_float.cpp.

◆ from_expr()

void ieee_float_valuet::from_expr ( const constant_exprt & expr )

Definition at line 1250 of file ieee_float.cpp.

◆ from_float()

void ieee_float_valuet::from_float ( float f )

Definition at line 1301 of file ieee_float.cpp.

◆ get_exponent()

const mp_integer & ieee_float_valuet::get_exponent ( ) const

inline

Definition at line 263 of file ieee_float.h.

◆ get_fraction()

const mp_integer & ieee_float_valuet::get_fraction ( ) const

inline

Definition at line 264 of file ieee_float.h.

◆ get_sign()

bool ieee_float_valuet::get_sign ( ) const

inline

Definition at line 254 of file ieee_float.h.

◆ ieee_equal()

bool ieee_float_valuet::ieee_equal ( const ieee_float_valuet & other ) const

Definition at line 686 of file ieee_float.cpp.

◆ ieee_not_equal()

bool ieee_float_valuet::ieee_not_equal ( const ieee_float_valuet & other ) const

Definition at line 725 of file ieee_float.cpp.

◆ increment()

void ieee_float_valuet::increment ( bool distinguish_zero = false )

inline

Definition at line 233 of file ieee_float.h.

◆ is_double()

bool ieee_float_valuet::is_double ( ) const

Definition at line 1361 of file ieee_float.cpp.

◆ is_float()

bool ieee_float_valuet::is_float ( ) const

Definition at line 1366 of file ieee_float.cpp.

◆ is_infinity()

bool ieee_float_valuet::is_infinity ( ) const

inline

Definition at line 260 of file ieee_float.h.

◆ is_NaN()

bool ieee_float_valuet::is_NaN ( ) const

inline

Definition at line 259 of file ieee_float.h.

◆ is_negative()

bool ieee_float_valuet::is_negative ( ) const

inline

Definition at line 255 of file ieee_float.h.

◆ is_normal()

bool ieee_float_valuet::is_normal ( ) const

Definition at line 372 of file ieee_float.cpp.

◆ is_zero()

bool ieee_float_valuet::is_zero ( ) const

inline

Definition at line 250 of file ieee_float.h.

◆ make_fltmax()

void ieee_float_valuet::make_fltmax ( )

Definition at line 1334 of file ieee_float.cpp.

◆ make_fltmin()

void ieee_float_valuet::make_fltmin ( )

Definition at line 1341 of file ieee_float.cpp.

◆ make_minus_infinity()

void ieee_float_valuet::make_minus_infinity ( )

Definition at line 1355 of file ieee_float.cpp.

◆ make_NaN()

void ieee_float_valuet::make_NaN ( )

Definition at line 1325 of file ieee_float.cpp.

◆ make_plus_infinity()

void ieee_float_valuet::make_plus_infinity ( )

Definition at line 1346 of file ieee_float.cpp.

◆ make_zero()

void ieee_float_valuet::make_zero ( )

inline

Definition at line 163 of file ieee_float.h.

◆ minus_infinity()

static ieee_float_valuet ieee_float_valuet::minus_infinity ( const ieee_float_spect & _spec )

inlinestatic

Definition at line 209 of file ieee_float.h.

◆ NaN()

static ieee_float_valuet ieee_float_valuet::NaN ( const ieee_float_spect & _spec )

inlinestatic

Definition at line 195 of file ieee_float.h.

◆ negate()

void ieee_float_valuet::negate ( )

inline

Definition at line 155 of file ieee_float.h.

◆ next_representable()

void ieee_float_valuet::next_representable ( bool greater )

protected

Sets *this to the next representable number closer to plus infinity (greater = true) or minus infinity (greater = false).

Definition at line 739 of file ieee_float.cpp.

◆ one() [1/2]

ieee_float_valuet ieee_float_valuet::one ( const floatbv_typet & type )

static

Definition at line 483 of file ieee_float.cpp.

◆ one() [2/2]

ieee_float_valuet ieee_float_valuet::one ( const ieee_float_spect & spec )

static

Definition at line 475 of file ieee_float.cpp.

◆ operator!=()

bool ieee_float_valuet::operator!= ( const ieee_float_valuet & other ) const

Definition at line 720 of file ieee_float.cpp.

◆ operator<()

bool ieee_float_valuet::operator< ( const ieee_float_valuet & other ) const

Definition at line 584 of file ieee_float.cpp.

◆ operator<=()

bool ieee_float_valuet::operator<= ( const ieee_float_valuet & other ) const

Definition at line 632 of file ieee_float.cpp.

◆ operator==() [1/4]

bool ieee_float_valuet::operator== ( const ieee_float_valuet & other ) const

Definition at line 665 of file ieee_float.cpp.

◆ operator==() [2/4]

bool ieee_float_valuet::operator== ( double d ) const

Definition at line 706 of file ieee_float.cpp.

◆ operator==() [3/4]

bool ieee_float_valuet::operator== ( float f ) const

Definition at line 713 of file ieee_float.cpp.

◆ operator==() [4/4]

bool ieee_float_valuet::operator== ( int i ) const

Definition at line 698 of file ieee_float.cpp.

◆ operator>()

bool ieee_float_valuet::operator> ( const ieee_float_valuet & other ) const

Definition at line 655 of file ieee_float.cpp.

◆ operator>=()

bool ieee_float_valuet::operator>= ( const ieee_float_valuet & other ) const

Definition at line 660 of file ieee_float.cpp.

◆ pack()

mp_integer ieee_float_valuet::pack ( ) const

Definition at line 377 of file ieee_float.cpp.

◆ plus_infinity()

static ieee_float_valuet ieee_float_valuet::plus_infinity ( const ieee_float_spect & _spec )

inlinestatic

Definition at line 202 of file ieee_float.h.

◆ print()

void ieee_float_valuet::print ( std::ostream & out ) const

Definition at line 67 of file ieee_float.cpp.

◆ set_sign()

void ieee_float_valuet::set_sign ( bool _sign )

inline

Definition at line 160 of file ieee_float.h.

◆ to_ansi_c_string()

std::string ieee_float_valuet::to_ansi_c_string ( ) const

inline

Definition at line 285 of file ieee_float.h.

◆ to_double()

double ieee_float_valuet::to_double ( ) const

Note that calling from_double -> to_double can return different bit patterns for NaN.

Definition at line 490 of file ieee_float.cpp.

◆ to_expr()

constant_exprt ieee_float_valuet::to_expr ( ) const

Definition at line 579 of file ieee_float.cpp.

◆ to_float()

float ieee_float_valuet::to_float ( ) const

Note that calling from_float -> to_float can return different bit patterns for NaN.

Definition at line 525 of file ieee_float.cpp.

◆ to_integer()

mp_integer ieee_float_valuet::to_integer ( ) const

◆ to_string_decimal()

std::string ieee_float_valuet::to_string_decimal ( std::size_t precision ) const

Definition at line 141 of file ieee_float.cpp.

◆ to_string_scientific()

std::string ieee_float_valuet::to_string_scientific ( std::size_t precision ) const

format as [-]d.ddde+-d Note that printf always produces at least two digits for the exponent.

Definition at line 235 of file ieee_float.cpp.

◆ unpack()

void ieee_float_valuet::unpack ( const mp_integer & i )

Definition at line 322 of file ieee_float.cpp.

◆ zero() [1/2]

static ieee_float_valuet ieee_float_valuet::zero ( const floatbv_typet & type )

inlinestatic

Definition at line 172 of file ieee_float.h.

◆ zero() [2/2]

static ieee_float_valuet ieee_float_valuet::zero ( const ieee_float_spect & spec )

inlinestatic

Definition at line 179 of file ieee_float.h.

Member Data Documentation

◆ exponent

mp_integer ieee_float_valuet::exponent

protected

Definition at line 320 of file ieee_float.h.

◆ fraction

mp_integer ieee_float_valuet::fraction

protected

Definition at line 321 of file ieee_float.h.

◆ infinity_flag

bool ieee_float_valuet::infinity_flag

protected

Definition at line 322 of file ieee_float.h.

◆ NaN_flag

bool ieee_float_valuet::NaN_flag

protected

Definition at line 322 of file ieee_float.h.

◆ sign_flag

bool ieee_float_valuet::sign_flag

protected

Definition at line 319 of file ieee_float.h.

◆ spec

ieee_float_spect ieee_float_valuet::spec

Definition at line 119 of file ieee_float.h.

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

/home/runner/work/cbmc/cbmc/src/util/ieee_float.h
/home/runner/work/cbmc/cbmc/src/util/ieee_float.cpp

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ieee_float_valuet() [1/4]

◆ ieee_float_valuet() [2/4]

◆ ieee_float_valuet() [3/4]

◆ ieee_float_valuet() [4/4]

Member Function Documentation

◆ abs()

◆ base10_digits()

◆ decrement()

◆ extract_base10()

◆ extract_base2()

◆ fltmax()

◆ fltmin()

◆ format()

◆ from_double()

◆ from_expr()

◆ from_float()

◆ get_exponent()

◆ get_fraction()

◆ get_sign()

◆ ieee_equal()

◆ ieee_not_equal()

◆ increment()

◆ is_double()

◆ is_float()

◆ is_infinity()

◆ is_NaN()

◆ is_negative()

◆ is_normal()

◆ is_zero()

◆ make_fltmax()

◆ make_fltmin()

◆ make_minus_infinity()

◆ make_NaN()

◆ make_plus_infinity()

◆ make_zero()

◆ minus_infinity()

◆ NaN()

◆ negate()

◆ next_representable()

◆ one() [1/2]

◆ one() [2/2]

◆ operator!=()

◆ operator<()

◆ operator<=()

◆ operator==() [1/4]

◆ operator==() [2/4]

◆ operator==() [3/4]

◆ operator==() [4/4]

◆ operator>()

◆ operator>=()

◆ pack()

◆ plus_infinity()

◆ print()

◆ set_sign()

◆ to_ansi_c_string()

◆ to_double()

◆ to_expr()

◆ to_float()

◆ to_integer()

◆ to_string_decimal()

◆ to_string_scientific()

◆ unpack()

◆ zero() [1/2]

◆ zero() [2/2]

Member Data Documentation

◆ exponent

◆ fraction

◆ infinity_flag

◆ NaN_flag

◆ sign_flag

◆ spec