Re: Supressing a %d parameter in a string

[Behdad Esfahbod <behdad cs toronto edu>]

On Fri, 25 Feb 2005 dsplat rochester rr com wrote:

> I actually expected to get an error, so I tried it with gcc last night:
>
>   printf( "arg %2$d, arg %3$d\n", 1, 2, 3 );
>
> gcc didn't even feel a need to warn me.
>
> I didn't try getting any of the gettext tools to accept it.
> If they won't, we may want to consider whether it should be
> possible to tell them to treat it as a warning rather than an
> error.  I wouldn't make that the default behavior.  It is
> almost always an error to omit a parameter.  However, it would
> be nice to be able to override it when necessary.

It's definitely an error to leave a parameter out during
translation, but not in general.  I can think of like a
customizable error message format that gives you the option to
leave out fields you don't want...

behdad


> - Dale
>
>
> ----- Original Message -----
> From: Åsmund Skjæveland <aasmunds fys uio no>
> Date: Friday, February 25, 2005 7:30 am
> Subject: Re: Supressing a %d parameter in a string
>
> > > When you are using the numbered version of the formatting
> > parameters,
> > > you should just be able to leave out the ones that you don't
> > want.  Does
> > > that parameter ever have any other value besides 1 for that message?
> >
> > No, you can't. If you leave out parameter#1 and use parameter#2,
> > you get
> > an error.
> >
> > --
> > Åsmund Skjæveland <aasmunds fys uio no>
> >
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> >
>
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--behdad
http://behdad.org/