W3cubDocs

/C++

std::any::has_value

bool has_value() const noexcept;
(since C++17)

Checks whether the object contains a value.

Parameters

(none).

Return value

true if instance contains a value, otherwise false.

© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/utility/any/has_value