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Re: [bug-gettext] [PROPOSED] Use VLAs in C11 compilers that advertise th
Re: [bug-gettext] [PROPOSED] Use VLAs in C11 compilers that advertise them
Thu, 15 Jun 2017 22:48:29 +0200
KMail/5.1.3 (Linux/4.4.0-79-generic; KDE/5.18.0; x86_64; ; )
> > Why? Around 1992-1997 I learned the lesson that one cannot really rely
> > on the values of __STDC_VERSION__ and the like. Too many compilers lie
> > about it.
> Although that's certainly true in general
OK, thanks for the confirmation.
> It has been used that
> way for something similar in Gnulib's lib/vla.h, without reported
Well, lib/vla.h is more about function declarations, rather than
about VLAs inside functions.
What would be useful is to have the test results of m4/vararrays.m4
with various compilers. More precisely, with the _minimum_ version of the
Solaris C compiler that advertises __STDC_VERSION__ == 201112L
(because usually they don't regress on language features, but they often
advertise a full standard as being supported although some language
features are not yet implemented). And likewise for HP-UX C, MSVC, Intel C,
and so on.
But I don't want to spent 3 hours on this. The benefit is too small.