Use of " ? : " in format param to printf

[Doug Gwyn]

In article <1454 at leah.Albany.Edu> rds95 at leah.Albany.Edu (Robert Seals) writes:
>Does it matter if there are unused arguments to printf?

The proposed ANSI C Standard permits extra arguments (which are, as
always, evaluated, but otherwise unused).  It's hard to imagine an
implementation that would have problems with extra arguments to a
varargs-style function like printf().