[Python-Dev] C99 code in the Python core?

Matthieu Brucher matthieu.brucher at gmail.com
Sat Jul 5 11:59:13 CEST 2008

2008/7/5 Mark Dickinson <dickinsm at gmail.com>:
> I have a general question and a specific question.  First the general one:
> (1) When is it okay to use C99 code in the Python core?  More particularly,
> is it considered acceptable to use widely-implemented library functions that
> are specified in C99 but not ANSI C, or widely-implemented features that
> are new to C99?
> Or is C99 code now acceptable pretty much anywhere?  If so, should
> PEP 7 be updated?  It currently says: """Use ANSI/ISO standard C
> (the 1989 version of the standard)."""
> I think there are some C99 features that still aren't implemented
> everywhere, even on major platforms.  (Examples are the inverse hyperbolic
> trig functions in math.h.)


I don't think that C99 is not supported by Visual Studio and there are
no plan for Microsoft to do so.

French PhD student
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