Re: pipes in Octave on Windows?

[Philip Nienhuis]

Mike Miller wrote:
> On Thu, Mar 31, 2016 at 10:22:49 -0700, PhilipNienhuis wrote:
> > If you provide the tarball (or a cset relative to the dev version) + some
> > functions (.m, oct/cc) that invoke it, or point to core/OF functions that
> > do, I'm happy to try it out.
>
> Done. Fetch https://mtmxr.com/octave-4.1.0+576c1a5187f3.tar.xz and drop
> it into your mxe-octave build (updating src/default-octave.mk as
> needed). Or apply the attached changeset and build from there (need to
> run bootstrap to pull in the pipe module).
>
> I'm assuming Olaf's simple pararrayfun would work as a test, or
> something like this:
>
>    [a, b] = pipe ();
>    fputs (b, "Hello world\n\n\n\n");
>    fflush (b);
>    result = fgets (a)
>
> If the call to pipe() errors, the module didn't work at all. If you see
> the string "Hello world" from the call to fgets, then it may be working.

(Tried on Windows 10)

>> [a, b] = pipe ()
a = -1
b = -1
>> fputs (b, "Hello world\n\n\n\n")
error: fputs: invalid stream number = -1

Philip