When is Explicit Destructor Invocation in C Acceptable?

Explicit Destructor Invocation in C

While it is generally discouraged to invoke destructors explicitly, there are specific instances where it is permissible. One such case arises in C template programming, as exemplified in N3485 Section 13.4.5.

In the given example, explicit destructor calls are used to destroy objects of a class template specialization. This allows the explicit specification of template arguments during the destructor call. However, it is important to note that such explicit destructor calls carry no practical significance beyond enabling this specialized syntax.

Beyond placement delete scenarios, there are no other valid cases for explicit destructor invocation. Attempting to explicitly destruct any other object, such as a local variable, will result in undefined behavior.

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