cvs commit: src/sys/sys errno.h
Simon 'corecode' Schubert
corecode at fs.ei.tum.de
Sat Jul 2 16:47:37 PDT 2005
Lately Jeroen Ruigrok/asmodai <asmodai at xxxxxxxxxxxxx> said:
> >Please keep it or come up with something better.
> How about ANSI C?
> "There shall be no more than one external definition for each identifier
> declared with internal linkage in a translation unit. Moreover, if an
> identifier declared with internal linkage is used in an expression (other
> than as a part of the operand of a sizeof operator), there shall be
> exactly one external definition for the identifier in the translation
> "If an identifier declared with external linkage is used in an expression
> (other than as part of the operand of a sizeof operator), somewhere in the
> entire program there shall be exactly one external definition for the
> identifier; otherwise, there shall be no more than one."
> This external definition is already satisfied by including errno.h and
> SHOULD NOT be repeated.
I don't understand this. Could you please explain this in undestandable
English? Furthermore, what has this to do with my change?
Are you saying that we are no more ANSI C compatible? Or do you want to
say that ANSI C compliant programs already did compile before?
I doubt the first and can agree on the second. Unfortunately almost all
programs out there are not ANSI C compatible.
I think we should be strict what we produce but liberal what we support.
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