[PATCH] D12081: Add use-nullptr check to clang-tidy.

Aaron Ballman via cfe-commits cfe-commits at lists.llvm.org
Thu Aug 27 16:23:35 PDT 2015


On Thu, Aug 27, 2015 at 7:20 PM, Alexander Kornienko <alexfh at google.com> wrote:
> alexfh added a comment.
>
> In http://reviews.llvm.org/D12081#234614, @aaron.ballman wrote:
>
>> While working on r246209, one of the build bots ran into an issue (commented below) that has me slightly perplexed. The build break can be found at: http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/30516
>
>
> Seems to be related to the  -std=c++98 in the test?

That's what I figured as well.

>
>> What's also strange is that I could not reproduce that failure locally (MSVC 2015 debug build, Windows 10)...
>
>
> That's strange. Maybe there's some command-line argument parsing magic when targeting windows?

That's what I'm slightly more concerned by. I will investigate in the
morning on my machine and see what I come up with.

>
>
> ================
> Comment at: test/clang-tidy/modernize-use-nullptr-basic.cpp:2
> @@ +1,3 @@
> +// RUN: $(dirname %s)/check_clang_tidy.sh %s modernize-use-nullptr %t -- \
> +// RUN:   -std=c++98 -Wno-non-literal-null-conversion
> +// REQUIRES: shell
> ----------------
> aaron.ballman wrote:
>> Sorry for bringing this up later, but how is this test supposed to work? nullptr is not a valid C++98 construct, and so I don't think we should be recommending fixes to use nullptr in this case. Is there a reason this test case is using -std=c++98 instead of -std=c++11?
> Looks like a mistake. It should be -std=c++11. But while the check wasn't looking at LangOpts, it didn't make any difference, because we don't try to compile the fixed code.

Okay, glad it's just a mistake. When I recommit my patch, I'll correct
this RUN line.

Thanks!

~Aaron

>
>
> http://reviews.llvm.org/D12081
>
>
>


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