linux-kernel - Re: [PATCH v3] Documentation/process/coding-style.rst: space around const

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Date:   Thu, 12 Oct 2023 07:48:25 -0700
From:   Joe Perches <joe@...ches.com>
To:     Miguel Ojeda <ojeda@...nel.org>, dan.j.williams@...el.com
Cc:     corbet@....net, gregkh@...uxfoundation.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux@...ck-us.net, max.kellermann@...os.com,
        workflows@...r.kernel.org
Subject: Re: [PATCH v3] Documentation/process/coding-style.rst: space around
 const

On Thu, 2023-10-12 at 13:50 +0200, Miguel Ojeda wrote:
> On Wed, 11 Oct 2023 14:44:17 -0700, Dan Williams wrote:
> > 
> > I notice that clang-format reflows that example to:
> > 
> >     const void *a;
> >     void *const b;
> >     void **const c;
> >     void *const *const d;
> >     int strcmp(const char *a, const char *b);
> > 
> > ...but someone more clang-format savvy than me would need to propose the
> > changes to the kernel's .clang-format template to match the style
> > suggestion.
> 
> I think we could use:
> 
>     diff --git a/.clang-format b/.clang-format
>     index 0bbb1991defe..9eeb511c0814 100644
>     --- a/.clang-format
>     +++ b/.clang-format
>     @@ -671,6 +671,7 @@ SortIncludes: false
>      SortUsingDeclarations: false
>      SpaceAfterCStyleCast: false
>      SpaceAfterTemplateKeyword: true
>     +SpaceAroundPointerQualifiers: Both
>      SpaceBeforeAssignmentOperators: true
>      SpaceBeforeCtorInitializerColon: true
>      SpaceBeforeInheritanceColon: true
> 
> At least that makes it match the documentation example -- I got this:
> 
>     const void *a;
>     void * const b;
>     void ** const c;
>     void * const * const d;
>     int strcmp(const char *a, const char *b);
> 
> But it is only supported in version >= 12, so we need to wait for the
> minimum LLVM version bump.

Do older versions of clang-format ignore entries
they don't understand?