std::any::reset

Since C++17

If *this contains a value, destroys the contained value.

# Declarations

void reset() noexcept;

(since C++17)

(none)

#include <any>
#include <cassert>
 
int main()
{
    std::any a{42};
    assert(a.has_value());
    a.reset();
    assert(not a.has_value());
}