Re: PATCH: Updated error messages for ill-formed cases of array initialization by string literal

[Christophe Lyon <christophe.lyon@linaro.org>]

On Fri, 18 Jan 2019 at 13:52, Rainer Orth <ro@cebitec.uni-bielefeld.de> wrote:
>
> Hi Jason,
>
> > On 1/15/19 12:59 PM, Joseph Myers wrote:
> >> On Tue, 15 Jan 2019, Jason Merrill wrote:
> >>
> >>> I actually incorporated the C++ part of these changes into yesterday's
> >>> commit,
> >>> using Martin's first suggestion.  Here's the adjusted C patch, which I'd like
> >>> a C maintainer to approve.
> >>
> >> The front-end changes are OK.  However, in the testcase changes, some of
> >> the new expected diagnostics are hardcoding that "unsigned int" is th
> >> type of char32_t, which isn't correct for all platforms (for example, it's
> >> definitely not the type when int is 16-bit).  In principle the same
> >> applies to diagnostics hardcoding the choice of char16_t, although
> >> variations are at least less likely there.
> >
> > This updated patch removes {short ,}unsigned int from the expected
> > diagnostics.  And also improves error_init to accept additional arguments,
> > like pedwarn_init already does.
> >
> > Tested x86_64-pc-linux-gnu.
>
> there are now a couple of failures on several (32-bit?) targets:
>
> +FAIL: gcc.dg/utf-array.c  (test for errors, line 15)
> +FAIL: gcc.dg/utf-array.c  (test for errors, line 21)
> +FAIL: gcc.dg/utf-array.c  (test for errors, line 33)
>
> I'm seeing it on i386-pc-solaris2.11 (32-bit only), and there are also
> gcc-testresults reports on i686-pc-linux-gnu, m68k-unknown-linux-gnu,
> and x86_64-pc-linux-gnu.
>

Seeing similar errors on arm and aarch64 too.

>         Rainer
>
> --
> -----------------------------------------------------------------------------
> Rainer Orth, Center for Biotechnology, Bielefeld University