beman::optional::optional

Synopsis

Declared in <beman/optional/optional.hpp>

template<class T>
class optional;

Name	Description
`const_iterator`	Type alias for the const iterator type of the optional.
`iterator`	Type alias for the iterator type of the optional.
`value_type`	Type alias for the value type stored in the optional.

Name	Description
`optional` [constructor]	Constructors
`~optional` [destructor]	Destructors
`operator=`	Assignment operators
`and_then`	Returns an optional containing the result of applying `f` to the stored value.
`begin`	`begin` overloads
`emplace`	`emplace` overloads
`end`	`end` overloads
`has_value`	Returns whether or not the optional has a value.
`operator*`	Returns a reference to the stored value.
`operator->`	Returns a pointer to the stored value.
`or_else`	Returns an optional containing the stored value if it has one, or the result of applying `f` to the optional if it does not.
`reset`	Resets the optional to an empty state, destroying the stored value if there is one.
`swap`	Swaps this optional with the other.
`transform`	Returns an optional containing the result of applying `f` to the stored value, or a default value if there is no stored value.
`value`	Returns a reference to the stored value.
`value_or`	Returns a reference to the stored value.
`operator bool`	Converts the optional to a boolean indicating whether it has a value.

Name	Description
`_` [variant member]	The empty state of the optional.
`value_` [variant member]	The stored value of the optional.

|===

Name	Description
`optional`

Name	Description
T