I get an error from printf i assume that underlying printf function is
returning error code.  In my native implementation i get incorrect results
and really depends on the parameters i didn't dig into too deep to see what
the pattern was


On Tue, Dec 14, 2021 at 11:03 AM Szabolcs Nagy <nsz@port70.net> wrote:

> * Andrew Snyder <arsnyder16@gmail.com> [2021-12-14 10:22:42 -0500]:
> > I would like to be cc'd on the replies
> >
> > Looks like a bug in the musl printf functionality
> >
> > When using variable width format string and specifying a padding musl
> fails
> > to format properly.
> >
> > I am using musl indirectly through an emscripten compile of a native
> > library.
> >
> > Consider the following repro steps using alpine docker image. Correct
> > results exist when using ubuntu image
> >
> > # Correct expected  ' 1'
> > docker run -it --rm alpine printf %2i 1
> > # Correct expected  ' 1'
> > docker run -it --rm alpine printf %*i 2 1
> > # Correct expected  '01'
> > docker run -it --rm alpine printf %02i 1
> > # errors, Expected '01'
> > docker run -it --rm alpine printf %0*i 2 1
>
> i get the expected result on alpine
>
> $ printf %0*i 2 1
> 01
>
> what do you get?
>
>