[cfe-commits] [PATCH] Microsoft extension: "_alignof" alias for "__alignof"

[Douglas Gregor]

On May 7, 2012, at 10:17 AM, Will Wilson <will at indefiant.com> wrote:

>>>> Looks fine as far as I can tell. Should we support __builtin_alignof in
>>>> ms
>>>> mode as well?
>>> 
>>> Do you mean as an additional keyword alias of __alignof?
>> 
>> 
>> Yes.
> 
> Okay, I've updated the patch with the test-case to add support for
> "__builtin_alignof". All tests pass locally.
> 
> According to http://www.geoffchappell.com/studies/msvc/cl/c1xx/warnings/c4932.htm
> there is a single-underscore version "_builtin_alignof" that's allowed
> in MSVC if /Ze is specified. That said, in VS2010 intellisense doesn't
> even seem to recognise this version, so I've only added the double
> underscore version for now as it seems even MS are reticent about
> supporting the more exotic form.
> 
> This should also solve: http://llvm.org/bugs/show_bug.cgi?id=12648

Committed as r156940, thanks!

	- Doug