Returns an optional containing the contained value if it has one, or the result of calling f if it does not.

Synopsis

Declared in <beman/optional/optional.hpp>

template<class F>
constexpr
optional<T>
or_else(F&& f) &&;

Return Value

  • auto

  • optional<T>

Template Parameters

Name Description

F

An invocable type returning an optional.

Parameters

Name Description

f

The invocable to call if the optional is disengaged.

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