[Python-Dev] Suggestion/ feature request

Julian julvar at tamu.edu
Tue Nov 21 20:13:09 CET 2006


> -----Original Message-----
> From: "Martin v. Löwis" [mailto:martin at v.loewis.de] 
> Sent: Tuesday, November 21, 2006 12:22 PM
> To: Julian
> Cc: python-dev at python.org
> Subject: Re: [Python-Dev] Suggestion/ feature request
> Julian schrieb:
> > SWIG seems to have done it properly by checking to see if 
> it has been 
> > defined already (which, I think, is how python should do it 
> as well) 
> > Now, even if I am not using SWIG, I could imagine these 
> being defined 
> > elsewhere (by other headers/libraries) or even by setting 
> them in the 
> > VS2005 IDE project settings (which I actually do sometimes). While 
> > these are *just* warnings and not errors, it would look cleaner if 
> > pyconfig.h would check if they were defined already.
> Sure; I have fixed this now in r52817 and r52818
> I just wondered why you get the warning: you shouldn't get 
> one if the redefinition is the same as the original one. In 
> this case, it wasn't the same redefinition, as SWIG was 
> merely defining them, and Python was defining them to 1.
> Regards,
> Martin

Thanks! you are right... I didn't know that !
I have two questions though... Is there any reason why Python is defining
them to 1?
In pyconfig.h, there is:


And then later on in the same file:
/* Turn off warnings about deprecated C runtime functions in 
   VisualStudio .NET 2005 */
#if _MSC_VER >= 1400 && !defined _CRT_SECURE_NO_DEPRECATE

Isn't that redundant? I don't think that second block will ever get
executed. Moreover, in the second block, it is not being defined to 1. why
is that ?


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