* De: Bakul Shah <[EMAIL PROTECTED]> [ Data: 2003-02-01 ]
[ Subjecte: Re: Style fixups for proc.h ]
> > Julian Elischer writes:
> > > I don't know about the protection with a '_'.
> > >
> > > It's not standard and usually the name matches that used in the actual
> > > function.
> >
> > When the prototype parameter name matches a local variable, the C compiler
> > (and lint) whine about clashes between names in local/global namespace.
>
> According to C99, a function prototype has its own scope or
> name space. It terminates at the end of the function
> declarator. Basically naming a parameter in a function
> prototype is an aide to the human user; it is not needed for
> correct compilation[1] so this warning is bogus. As the
> spec says in section 6.7.5.3 (according the draft I have)
>
> "The identifiers [naming parameters] are declared for
> descriptive purposes only and go out of scope at the end
> of the [prototype] declaration".
>
> I can't see what actual error is avoided by this warning.
If a named prototype clashes with something in global scope,
isn't it still a shadowing issue? They should probably never
be *in* scope.
--
Juli Mallett <[EMAIL PROTECTED]>
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OpenDarwin, Mono, FreeBSD Developer
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