Optional< Value > Class Template Reference

(limited) std::optional replacement (until we upgrade to C++17) More...

#include <Optional.h>

Inheritance diagram for Optional< Value >:

Collaboration diagram for Optional< Value >:

Public Member Functions
constexpr	Optional () noexcept
constexpr	Optional (const Value &v)
constexpr	operator bool () const noexcept
constexpr bool	has_value () const noexcept
const Value &	value () const &
template<class Other >
constexpr Value	value_or (Other &&defaultValue) const &
template<class Other = Value>
Optional &	operator= (Other &&otherValue)

Private Attributes
Value	value_
bool	hasValue_ = false

Detailed Description

template<typename Value>
class Optional< Value >

Definition at line 28 of file Optional.h.

Constructor & Destructor Documentation

Optional() [1/2]

template<typename Value >

constexpr Optional< Value >::Optional ( )

inlineconstexprnoexcept

Definition at line 36 of file Optional.h.

Optional() [2/2]

template<typename Value >

constexpr Optional< Value >::Optional ( const Value &  v )

inlineexplicitconstexpr

Definition at line 37 of file Optional.h.

Member Function Documentation

has_value()

template<typename Value >

constexpr bool Optional< Value >::has_value ( ) const

inlineconstexprnoexcept

Definition at line 40 of file Optional.h.

operator bool()

template<typename Value >

constexpr Optional< Value >::operator bool ( ) const

inlineexplicitconstexprnoexcept

Definition at line 39 of file Optional.h.

operator=()

template<typename Value >

template<class Other = Value>

Optional& Optional< Value >::operator= ( Other &&  otherValue )

inline

Definition at line 56 of file Optional.h.

value()

template<typename Value >

const Value& Optional< Value >::value ( ) const &

inline

Definition at line 42 of file Optional.h.

Referenced by FormattedLog::dumpOptions().

value_or()

template<typename Value >

template<class Other >

constexpr Value Optional< Value >::value_or ( Other &&  defaultValue ) const &

inlineconstexpr

Definition at line 50 of file Optional.h.

Referenced by FormattedLog::rotate().

Member Data Documentation

hasValue_

template<typename Value >

bool Optional< Value >::hasValue_ = false

private

Definition at line 65 of file Optional.h.

value_

template<typename Value >

Value Optional< Value >::value_

private

Definition at line 64 of file Optional.h.

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

• src/base/forward.h
• src/base/Optional.h