mde::Optional< T > Class Template Reference

Describes an optional of some type T. The value may either be present or absent. More...

#include <mde_common.hpp>

Public Member Functions
	Optional (const T &value)
bool	is_present ()
	Informs if the value is present.
const T &	get ()
	Gets the underlying value. Throws an exception if it is absent.

Static Public Member Functions
static Optional	absent ()
	Explicitly creates an absent value.

Detailed Description

template<typename T>
class mde::Optional< T >

Describes an optional of some type T. The value may either be present or absent.

Template Parameters

T

The type.

Definition at line 163 of file mde_common.hpp.

Constructor & Destructor Documentation

Optional()

template<typename T >

mde::Optional< T >::Optional ( const T &  value )

inline

Definition at line 170 of file mde_common.hpp.

Member Function Documentation

absent()

template<typename T >

static Optional mde::Optional< T >::absent ( )

inlinestatic

Explicitly creates an absent value.

Definition at line 173 of file mde_common.hpp.

Referenced by mde::MapAdapter< MapClass >::find().

get()

template<typename T >

const T & mde::Optional< T >::get ( )

inline

Gets the underlying value. Throws an exception if it is absent.

Definition at line 183 of file mde_common.hpp.

is_present()

template<typename T >

bool mde::Optional< T >::is_present ( )

inline

Informs if the value is present.

Definition at line 178 of file mde_common.hpp.

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

• src/include/mde/mde_common.hpp