bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type > Class Template Reference

Nullable type. More...

Inheritance diagram for bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >:

Public Member Functions
	nullable () BOND_NOEXCEPT_IF(std
	Default constructor. More...
	nullable (const allocator_type &alloc)
	Construct nullable using specified allocator instance. More...
	nullable (const nullable &other)
	Copy constructor. More...
	nullable (const T &value, const allocator_type &alloc={})
	Construct from an instance T. More...
nullable &	operator= (const nullable &other)
	Assignment operator. More...
bool	empty () const BOND_NOEXCEPT
	Checks if the object is null. More...
T &	value () BOND_NOEXCEPT
	Return reference to contained value. More...
const T &	value () const BOND_NOEXCEPT
	Return constant reference to contained value. More...
T &	operator* () BOND_NOEXCEPT
	Dereference operator. More...
const T &	operator* () const BOND_NOEXCEPT
	Dereference operator. More...
T &	set ()
	Set to default instance of T and return reference to the value. More...
void	set (const T &value)
	Set to specified value. More...
void	reset ()
	Reset to null. More...
void	clear ()
	The same as reset. More...

Detailed Description

template<typename T>
class bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >

Nullable type.

See User's Manual

Constructor & Destructor Documentation

nullable() [1/4]

template<typename T >

bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::nullable

(

)

Default constructor.

nullable() [2/4]

template<typename T >

bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::nullable ( const allocator_type &  alloc )

explicit

Construct nullable using specified allocator instance.

nullable() [3/4]

template<typename T >

bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::nullable

(

const nullable< T, typename boost::disable_if< detail::use_value< T > >::type > &

other

)

Copy constructor.

nullable() [4/4]

template<typename T >

bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::nullable ( const T &  value, const allocator_type &  alloc = {}  )

explicit

Construct from an instance T.

Member Function Documentation

clear()

template<typename T >

void bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::clear

(

)

The same as reset.

empty()

template<typename T >

bool bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::empty

(

)

const

Checks if the object is null.

operator*() [1/2]

template<typename T >

T & bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::operator*

(

)

Dereference operator.

Undefined if the object is null

operator*() [2/2]

template<typename T >

const T & bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::operator*

(

)

const

Dereference operator.

Undefined if the object is null

operator=()

template<typename T >

nullable & bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::operator=

(

const nullable< T, typename boost::disable_if< detail::use_value< T > >::type > &

other

)

Assignment operator.

reset()

template<typename T >

void bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::reset

(

)

Reset to null.

set() [1/2]

template<typename T >

T & bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::set

(

)

Set to default instance of T and return reference to the value.

set() [2/2]

template<typename T >

void bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::set

(

const T &

value

)

Set to specified value.

value() [1/2]

template<typename T >

T & bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::value

(

)

Return reference to contained value.

Undefined if the object is null

value() [2/2]

template<typename T >

const T & bond::nullable< T, typename boost::disable_if< detail::use_value< T > >::type >::value

(

)

const

Return constant reference to contained value.

Undefined if the object is null