LocARNA::InftyInt Class Reference

#include <infty_int.hh>

Inheritance diagram for LocARNA::InftyInt:

Collaboration diagram for LocARNA::InftyInt:

Public Member Functions
	InftyInt ()
	Construct empty.
	InftyInt (const base_type &x)
	Construct from base type. More...
	InftyInt (const FiniteInt &x)
	Construct from finite int. More...
	InftyInt (const TaintedInftyInt &x)
	Construct from potentially tainted. More...
InftyInt &	operator= (TaintedInftyInt &x)
	Assignment from potentially tainted infty int. More...
InftyInt &	operator+= (const FiniteInt &x)
InftyInt &	operator-= (const FiniteInt &x)
Public Member Functions inherited from LocARNA::TaintedInftyInt
	TaintedInftyInt ()
	Construct empty.
	TaintedInftyInt (const base_type &x)
	Construct from base type. More...
bool	is_neg_infty () const
bool	is_pos_infty () const
bool	is_finite () const
bool	is_normal () const
base_type	finite_value () const
	Convert finite value to base type. More...
TaintedInftyInt &	operator= (const FiniteInt &x)
	Assignment. More...

Static Public Attributes
static const InftyInt	neg_infty
	normalized negative infinity More...
static const InftyInt	pos_infty
	normalized positive infinity More...

Friends
InftyInt	operator+ (const InftyInt &x, const FiniteInt &y)
InftyInt	operator- (const InftyInt &x, const FiniteInt &y)

Additional Inherited Members
Public Types inherited from LocARNA::TaintedInftyInt
typedef long int	base_type
	the base type
Static Public Member Functions inherited from LocARNA::TaintedInftyInt
static base_type	min_finite ()
	minimum finite value More...
static base_type	max_finite ()
	maximum finite value More...
Protected Attributes inherited from LocARNA::TaintedInftyInt
base_type	val
	value
Static Protected Attributes inherited from LocARNA::TaintedInftyInt
static const base_type	min_finity
	minimum finite value More...
static const base_type	max_finity
	maximum finite value More...
static const base_type	min_normal_neg_infty
	minimum normal infinite value More...
static const base_type	max_normal_pos_infty
	maximum normal infinite value More...

Detailed Description

Potentially infinite value where finite values are integer. The representation of infinite values is normalized. Due to the normalization it is safe to add or subtract a second normal potentially infinite integer (thereby generating an non-normalized potentially infinite integer).

Constructor & Destructor Documentation

InftyInt() [1/3]

LocARNA::InftyInt::InftyInt ( const base_type &  x )

inlineexplicit

Construct from base type.

Parameters

x	value of base type

InftyInt() [2/3]

LocARNA::InftyInt::InftyInt ( const FiniteInt &  x )

inlineexplicit

Construct from finite int.

Parameters

x

value

InftyInt() [3/3]

LocARNA::InftyInt::InftyInt ( const TaintedInftyInt &  x )

inline

Construct from potentially tainted.

Parameters

x

value

Note

used for implicit type cast, untainting

Member Function Documentation

operator+=()

InftyInt & LocARNA::InftyInt::operator+= ( const FiniteInt &  x )

inline

Add in place

Parameters

x

operand

Returns

*this after operation

operator-=()

InftyInt & LocARNA::InftyInt::operator-= ( const FiniteInt &  x )

inline

Subtract in place

Parameters

x

operand

Returns

*this after operation

operator=()

InftyInt& LocARNA::InftyInt::operator= ( TaintedInftyInt &  x )

inline

Assignment from potentially tainted infty int.

Parameters

x

value

Returns

*this

Friends And Related Function Documentation

operator+

InftyInt operator+ ( const InftyInt &  x, const FiniteInt &  y  )

friend

Add

Parameters

x	operand 1
y	operand 2

Returns

x plus y

operator-

InftyInt operator- ( const InftyInt &  x, const FiniteInt &  y  )

friend

Subtract

Parameters

x	operand 1
y	operand 2

Returns

x minus y

Member Data Documentation

neg_infty

const InftyInt LocARNA::InftyInt::neg_infty

static

Initial value:

= InftyInt(
        std::numeric_limits<TaintedInftyInt::base_type>::min() / 5 * 2)

normalized negative infinity

pos_infty

const InftyInt LocARNA::InftyInt::pos_infty

static

Initial value:

= InftyInt(
        -(std::numeric_limits<TaintedInftyInt::base_type>::min() / 5 * 2))

normalized positive infinity

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

• src/LocARNA/infty_int.hh
• src/LocARNA/infty_int.cc