Returns an optional containing the stored value if it has one, or the result of applying f to the optional if it does not.
Synopses
Declared in <beman/optional/optional.hpp>
Returns an optional containing the stored value if it has one, or the result of applying f to the optional if it does not.
template<class F>
constexpr
optional<T>
or_else(F&& f);Returns an optional containing the stored value if it has one, or the result of applying f to the optional if it does not.
template<class F>
constexpr
optional<T>
or_else(F&& f);Return Value
-
auto
-
optional<T>
-
optional
Template Parameters
Name |
Description |
F |
|
T |
Parameters
Name |
Description |
f |
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