Function request: rb_raisef()

Hi all,

I find that I'm often doing stuff like this within a C extension:

/* 'x' and 'dev' already have values somewhere */
if(failure){
   char err[BUF];
   sprintf(err,"Something wrong with %i on device %s",x,dev);
   rb_raise(rb_eStandardError,err);
}

Being the lazy sort that I am, I would like to be able to do something
like this:

if(failure){
   rb_raisef(rb_eStandardError,"Something wrong with %i on device
%s",x,dev);
}

Or is this impractical?

Regards,

Dan