c26443.md

title	ms.date	f1_keywords	helpviewer_keywords	description
Warning C26443	01/18/2017	C26443 NO_EXPLICIT_DTOR_OVERRIDE	C26443	Warning C26443 Rule concerning overriding destructors

Warning C26443

Overriding destructor should not use explicit 'override' or 'virtual' specifiers.

This warning was removed in Visual Studio 16.8 to reflect changes to C.128 in the C++ Core Guidelines.

C++ Core Guidelines

C.128: Virtual functions should specify exactly one of virtual, override, or final.

The current consensus on the Core Guidelines is to exclude destructors from the 'override explicitly' recommendation.

Notes

• The rule flags overriding destructors that explicitly use 'virtual' or 'override' specifiers.
• Destructors can still use the 'final' specifier because of its special semantics.
• Warnings show up on function definitions, not declarations. It may be confusing, since definitions don't have virtual specifiers, but the warning is still appropriate.

Code analysis name: NO_EXPLICIT_DTOR_OVERRIDE

Example: Explicit 'override'

class Transaction {
public:
    virtual ~Transaction();
    // ...
};

class DistributedTransaction : public Transaction {
public:
    ~DistributedTransaction() override { // C26443
        // ...
    }
};

See also

C.128: Virtual functions should specify exactly one of virtual, override, or final