[Python-Dev] C99 code in the Python core?
dickinsm at gmail.com
Sat Jul 5 11:39:34 CEST 2008
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.)
And the specific question:
(2) Is it okay to use the '%a' format specifier for sprintf, sscanf and friends.
Are there major platforms where this isn't implemented? (Using
'%a' would make the issue implementation much simpler.)
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