On Monday 24 June 2013 16:13:01 Chet Ramey wrote:
> On 6/17/13 1:27 AM, Mike Frysinger wrote:
> > simple test code:
> > unset foo
> > printf -v foo ""
> > echo ${foo+set}
> >
> > that does not display "set". seems to have been this way since the
> > feature was added in bash-3.1.
>
> printf returns immediately if the format string is null. It has always
> been implemented this way.seems like when the -v arg is in use, that [otherwise reasonable] shortcut should be not taken ? -mike
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