Warning C26435 Function CXxxx::DoDataExchange should specify exactly one of `virtual`, `override`, or `final` (c.128)

Question

Here is another code analysis warning:

Warning C26435 Function CAssignSelectedColumnDlg::DoDataExchange should specify exactly one of virtual, override, or final (c.128).

Example (boilerplate MFC code):

void CAssignSelectedColumnDlg::DoDataExchange(CDataExchange* pDX)
{
...
...
}

If I understand the documentation correctly, I need to attach either:

• override or
• final

... to the function declaration in the header?

Answer 1

Yes. The link you posted has another link in it:

https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Rh-override

You can trust the authors :)

Editors:

Bjarne Stroustrup
Herb Sutter

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For others benefit:

void DoDataExchange(CDataExchange* pDX) final;