Atomic type that can hold numeric values of different type. More...

#include <numericVariant.hpp>

Classes
class	String

Public Types
enum	Type { Null, Int, UInt, Float }
	Enumeration of all types an numeric variant can have. More...

typedef int64_t	IntType

typedef uint64_t	UIntType

typedef double	FloatType

Public Member Functions
	NumericVariant (int64_t value)
	Constructor from a signed integer. More...

	NumericVariant (uint64_t value)
	Constructor from an unsigned integer. More...

	NumericVariant (double value)
	Constructor from a single precision floating point number. More...

	NumericVariant (const char *val_)
	Constructor from a string. More...

	NumericVariant ()
	Default constructor (as undefined value) More...

	NumericVariant (const NumericVariant &o)
	Copy constructor. More...

void	init ()

String	tostring (int precision=-1) const

bool	initFromString (const char *src)
	Initialize numeric variant parsed from a Ascii source string. More...

bool	defined () const
	Find out if this value is defined. More...

template<typename TYPE >
TYPE	cast () const
	Template for casting to a defined value type. More...

	operator double () const
	Cast to a single precision floating point number. More...

	operator int64_t () const
	Cast to a signed integer. More...

	operator uint64_t () const
	Cast to an unsigned integer. More...

int64_t	toint () const
	Cast to a signed integer. More...

uint64_t	touint () const
	Cast to an unsigned integer. More...

double	tofloat () const
	Cast to an unsigned integer. More...

bool	operator== (const NumericVariant &o) const
	Test for equality. More...

bool	operator!= (const NumericVariant &o) const
	Test for inequality. More...

bool	operator>= (const NumericVariant &o) const
	Test for greater or equal. More...

bool	operator> (const NumericVariant &o) const
	Test for greater. More...

bool	operator<= (const NumericVariant &o) const
	Test for smaller or equal. More...

bool	operator< (const NumericVariant &o) const
	Test for smaller. More...

bool	isequal (const NumericVariant &o) const
	Test for equality. More...

int	compare (const NumericVariant &o) const
	Comparison of numbers. More...

NumericVariant &	operator= (int64_t value)
	Assignment operator for a singed integer. More...

NumericVariant &	operator= (uint64_t value)
	Assignment operator for an unsinged integer. More...

NumericVariant &	operator= (double value)
	Assignment operator for a single precision floating point number. More...

NumericVariant &	operator= (const NumericVariant &o)
	Assignment operator. More...

Static Public Member Functions
static NumericVariant	asint (int64_t val)

static NumericVariant	asuint (uint64_t val)

static NumericVariant	asdouble (double val)

static const char *	typeName (Type type)
	Get the name of a type as string. More...

Public Attributes
Type	type
	Type of this numeric variant. More...

union {
int64_t Int
	value in case of a signed integer More...

uint64_t UInt
	value in case of an unsigned integer More...

double Float
	value in case of a floating point number More...

}	variant
	Value of this numeric variant. More...

Detailed Description

Atomic type that can hold numeric values of different type.

Member Typedef Documentation

typedef double strus::NumericVariant::FloatType

typedef int64_t strus::NumericVariant::IntType

typedef uint64_t strus::NumericVariant::UIntType

Member Enumeration Documentation

enum strus::NumericVariant::Type

Enumeration of all types an numeric variant can have.

Enumerator
Null	uninitialized variant value
Int	signed integer number value
UInt	unsigned integer number value
Float	floating point number value

Constructor & Destructor Documentation

strus::NumericVariant::NumericVariant ( int64_t value )

inline

Constructor from a signed integer.

Parameters

[in] value value to assign to this numeric variant

strus::NumericVariant::NumericVariant ( uint64_t value )

inline

Constructor from an unsigned integer.

Parameters

[in] value value to assign to this numeric variant

strus::NumericVariant::NumericVariant ( double value )

inline

Constructor from a single precision floating point number.

Parameters

[in] value value to assign to this numeric variant

strus::NumericVariant::NumericVariant ( const char * val_ )

inline

Constructor from a string.

Parameters

[in] value value to parse and assign to this numeric variant

strus::NumericVariant::NumericVariant ( )

inline

Default constructor (as undefined value)

strus::NumericVariant::NumericVariant ( const NumericVariant & o )

inline

Copy constructor.

Parameters

[in] o numeric variant to copy

Member Function Documentation

static NumericVariant strus::NumericVariant::asdouble ( double val )

inlinestatic

static NumericVariant strus::NumericVariant::asint ( int64_t val )

inlinestatic

static NumericVariant strus::NumericVariant::asuint ( uint64_t val )

inlinestatic

template<typename TYPE >

TYPE strus::NumericVariant::cast ( ) const

inline

Template for casting to a defined value type.

Template Parameters

TYPE	what type to cast this numeric variant to

int strus::NumericVariant::compare ( const NumericVariant & o ) const

Comparison of numbers.

Parameters

[in] o numeric variant to compare

Returns: -1 <, +1 >, 0 =

bool strus::NumericVariant::defined ( ) const

inline

Find out if this value is defined.

Returns: true, if yes

void strus::NumericVariant::init ( )

inline

bool strus::NumericVariant::initFromString ( const char * src )

Initialize numeric variant parsed from a Ascii source string.

Parameters

[in] src source string to parse

Returns: bool true on success, false on failure

bool strus::NumericVariant::isequal ( const NumericVariant & o ) const

Test for equality.

Parameters

[in] o numeric variant to compare

Returns: true, if yes

strus::NumericVariant::operator double ( ) const

inline

Cast to a single precision floating point number.

strus::NumericVariant::operator int64_t ( ) const

inline

Cast to a signed integer.

strus::NumericVariant::operator uint64_t ( ) const

inline

Cast to an unsigned integer.

bool strus::NumericVariant::operator!= ( const NumericVariant & o ) const

inline

Test for inequality.

Parameters

[in] o numeric variant to compare

Returns: true, if yes

bool strus::NumericVariant::operator< ( const NumericVariant & o ) const

inline

Test for smaller.

Parameters

[in] o numeric variant to compare

Returns: true, if yes

bool strus::NumericVariant::operator<= ( const NumericVariant & o ) const

inline

Test for smaller or equal.

Parameters

[in] o numeric variant to compare

Returns: true, if yes

NumericVariant& strus::NumericVariant::operator= ( int64_t value )

inline

Assignment operator for a singed integer.

Parameters

[in] value value to assign to this numeric variant

NumericVariant& strus::NumericVariant::operator= ( uint64_t value )

inline

Assignment operator for an unsinged integer.

Parameters

[in] value value to assign to this numeric variant

NumericVariant& strus::NumericVariant::operator= ( double value )

inline

Assignment operator for a single precision floating point number.

Parameters

[in] value value to assign to this numeric variant

NumericVariant& strus::NumericVariant::operator= ( const NumericVariant & o )

inline

Assignment operator.

Parameters

[in] o numeric variant to copy

bool strus::NumericVariant::operator== ( const NumericVariant & o ) const

inline

Test for equality.

Parameters

[in] o numeric variant to compare

Returns: true, if yes

bool strus::NumericVariant::operator> ( const NumericVariant & o ) const

inline

Test for greater.

Parameters

[in] o numeric variant to compare

Returns: true, if yes

bool strus::NumericVariant::operator>= ( const NumericVariant & o ) const

inline

Test for greater or equal.

Parameters

[in] o numeric variant to compare

Returns: true, if yes

double strus::NumericVariant::tofloat ( ) const

inline

Cast to an unsigned integer.

int64_t strus::NumericVariant::toint ( ) const

inline

Cast to a signed integer.

String strus::NumericVariant::tostring ( int precision = -1 ) const

inline

uint64_t strus::NumericVariant::touint ( ) const

inline

Cast to an unsigned integer.

static const char* strus::NumericVariant::typeName ( Type type )

static

Get the name of a type as string.

Member Data Documentation

double strus::NumericVariant::Float

value in case of a floating point number

int64_t strus::NumericVariant::Int

value in case of a signed integer

Type strus::NumericVariant::type

Type of this numeric variant.

uint64_t strus::NumericVariant::UInt

value in case of an unsigned integer

union { ... } strus::NumericVariant::variant

Value of this numeric variant.

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

/home/patrick/Projects/github/strusBase/include/strus/numericVariant.hpp

Classes

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation