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std::any:: ~any

From cppreference.net
C++
Utilities library
std::any
~any ( ) ;
(since C++17)

Destroys the contained object, if any, as if by a call to reset() .

Example

Run this code 
#include <any>
#include <cstdio>
struct X
{
    X() { std::puts("X::X()"); }
    X(const X&) { std::puts("X::X(const X&)"); }
    ~X() { std::puts("X::~X()"); }
};
int main()
{
    std::any a{X{}};
    std::puts("Leaving main()...");
}

Output: 

X::X()
X::X(const X&)
X::~X()
Leaving main()...
X::~X()

See also

destroys contained object
(public member function)