[Python-Dev] static int debug = 0;
Guido van Rossum
Thu, 31 Aug 2000 23:36:05 -0500
> Jeremy Hylton writes:
> > The change is redundant, as several people pointed out, because the C
> > std requires debug to be initialized to 0. I didn't realize this.
> > Inadvertently, however, I made the right change. The preferred style
> > is to be explicit about initialization if other code depends on or
> > assumes that it is initialized to a particular value -- even if that
> > value is 0.
> According to the BDFL? He's told me *not* to do that if setting it
> to 0 (or NULL, in case of a pointer), but I guess that was several
> years ago now (before I went to CNRI, I think).
Can't remember that now. I told Jeremy what he wrote here.
> I need to get a style guide written, I suppose! -sigh-
> (I agree the right thing is to use explicit initialization, and
> would go so far as to say to *always* use it for readability and
> robustness in the face of changing code.)
No -- initializing variables that are assigned to first thing later is
less readable. The presence or absence of the initialization should
be a subtle hint on whether the initial value is used. If the code
changes, change the initialization.
--Guido van Rossum (home page: http://www.pythonlabs.com/~guido/)