Applies a function to the contained value if there is one.
Synopses
Declared in <beman/optional/optional.hpp>
Applies a function to the contained value if there is one.
template<class F>
constexpr
auto
and_then(F&& f) &;Applies a function to the contained value if there is one.
template<class F>
constexpr
auto
and_then(F&& f) &&;Applies a function to the contained value if there is one.
template<class F>
constexpr
auto
and_then(F&& f) const &;Applies a function to the contained value if there is one.
template<class F>
constexpr
auto
and_then(F&& f) const &&;Return Value
auto
Template Parameters
| Name | Description |
|---|---|
F |
The type of the invocable |
Parameters
| Name | Description |
|---|---|
f |
The invocable to apply to the contained value |
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