Methods inherited in nested class generate spurious override error

[llvmbot]

Bugzilla Link	33312
Version	4.0
OS	All
Attachments	Minimal example demonstrating the problem
Reporter	LLVM Bugzilla Contributor
CC	@DougGregor

Extended Description

The attached code fails to compile (with clang++ -std=c++11) with the following error:

<source>:14:18: error: 'method' marked 'override' but does not override any member functions
    virtual void method () override {}
                 ^

This fails with every version of clang from 3.1 onwards, but works with all (C++11 supporting) versions of gcc; see https://godbolt.org/g/eI7da0 . Clang-3.0 works ok.

[AaronBallman]

This issue was fixed in Clang 20: https://godbolt.org/z/f5Mfbecsn

[llvmbot]

@llvm/issue-subscribers-clang-frontend

Author: None (llvmbot)

Details

| | | | --- | --- | | Bugzilla Link | [33312](https://llvm.org/bz33312) | | Version | 4.0 | | OS | All | | Attachments | [Minimal example demonstrating the problem](https://user-images.githubusercontent.com/60944935/143755728-d7393bc6-3b48-441c-8137-8344442b4d87.gz) | | Reporter | LLVM Bugzilla Contributor | | CC | @DougGregor |

Extended Description

The attached code fails to compile (with clang++ -std=c++11) with the following error:

<source>:14:18: error: 'method' marked 'override' but does not override any member functions
    virtual void method () override {}
                 ^

This fails with every version of clang from 3.1 onwards, but works with all (C++11 supporting) versions of gcc; see https://godbolt.org/g/eI7da0 . Clang-3.0 works ok.