Patch for Bug 26283: float.h is missing mandatory C11 fp macros like DBL_DECIMAL_DIG and LDBL_DECIMAL_DIG

[Hubert Tong via cfe-commits]

I see no immediate issue with this patch, but I am not one of the usual
reviewers for this part of the code base.

-- HT

On Tue, Feb 9, 2016 at 2:56 PM, Jorge Teixeira <j.lopes.teixeira at gmail.com>
wrote:

> Thanks Hubert. Somehow I omitted that prefix when typing the macros,
> and I did not noticed it when I was testing because on my arch
> DECIMAL_DIG is defined to be the LDBL version...
>
> Updated patch is attached.
>
> JT
>
> On Tue, Feb 9, 2016 at 1:41 PM, Hubert Tong
> <hubert.reinterpretcast at gmail.com> wrote:
> > There is a __LDBL_DECIMAL_DIG__ predefined macro. __DECIMAL_DIG__ will
> not
> > always be the same as __LDBL_DECIMAL_DIG__.
> >
> > -- HT
> >
> > On Mon, Feb 8, 2016 at 11:26 PM, Jorge Teixeira via cfe-commits
> > <cfe-commits at lists.llvm.org> wrote:
> >>
> >> Hi, I filed the bug (https://llvm.org/bugs/show_bug.cgi?id=26283) some
> >> time ago and nobody picked it up, so here is a trivial patch exposing
> >> the missing macros, that to the best of my ability were already
> >> present as the internal underscored versions.
> >>
> >> Perhaps a more general bug about C11 floating point (lack of)
> >> conformance should be filed, so that some form of unit test/macro
> >> validation could be worked on, but this patch does scratch my current
> >> itch.
> >>
> >> Successfully tested on x86-64 Xubuntu 14.04 with clang 3.8 from the
> >> ppa, patched with the attached diff.
> >>
> >> First contribution, so feel free to suggest improvements or point to
> >> more detailed step-by-step instructions/guidelines.
> >>
> >> Cheers,
> >>
> >> JT
> >>
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> >>
> >
>
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