G::optional< T > Class Template Reference

A class template like a simplified c++17 std::optional. More...

#include <goptional.h>

Public Member Functions
	optional () noexcept(noexcept(T()))
	Default constructor for no value.
	optional (const T &)
	Constructor for a defined value. More...
void	reset ()
	Clears the value. More...
bool	has_value () const noexcept
	Returns true if a defined value. More...
	operator bool () const noexcept
	Returns true if a defined value. More...
const T &	value () const
	Returns the value. More...
T	value_or (const T &) const
	Returns the value or a default. More...
optional< T > &	operator= (const T &)
	Assignment for a defined value. More...
	optional (const optional &)=default
	optional (optional &&) noexcept=default
optional &	operator= (const optional &)=default
optional &	operator= (optional &&) noexcept=default

Detailed Description

template<typename T>
class G::optional< T >

A class template like a simplified c++17 std::optional.

Definition at line 49 of file goptional.h.

Constructor & Destructor Documentation

optional()

template<typename T >

G::optional< T >::optional ( const T &  t )

explicit

Constructor for a defined value.

Definition at line 96 of file goptional.h.

Member Function Documentation

has_value()

template<typename T >

bool G::optional< T >::has_value

noexcept

Returns true if a defined value.

Definition at line 109 of file goptional.h.

operator bool()

template<typename T >

G::optional< T >::operator bool

explicitnoexcept

Returns true if a defined value.

Definition at line 115 of file goptional.h.

operator=()

template<typename T >

G::optional< T > & G::optional< T >::operator=

(

const T &

t

)

Assignment for a defined value.

Definition at line 140 of file goptional.h.

reset()

template<typename T >

void G::optional< T >::reset

Clears the value.

Definition at line 103 of file goptional.h.

value()

template<typename T >

const T & G::optional< T >::value

Returns the value.

Definition at line 121 of file goptional.h.

value_or()

template<typename T >

T G::optional< T >::value_or

(

const T &

default_

)

const

Returns the value or a default.

Definition at line 134 of file goptional.h.

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

• /tmp/slackdce/slackrepo.HKsbdz/build_emailrelay/emailrelay-2.6/src/glib/goptional.h