[Octave-bug-tracker] [bug #47614] pipe() does not work on Windows

[Tatsuro MATSUOKA]

Follow-up Comment #3, bug #47614 (project octave):

On octave on native windows


>> pipe ()
ans = -1


On the other hand, octave on Cygwin:

>> pipe()
ans =  15


The "ans" values are changed by repetition of "pipe()".

In the comment, the gnulib implementation of pipe
http://git.savannah.gnu.org/cgit/gnulib.git/tree/lib/pipe.c
at line 34-35:


  /* Mingw changes fd to {-1,-1} on failure, but this violates
     http://austingroupbugs.net/view.php?id=467 */


>From the above, the pipe seems to be implemented using _pipe on 
windows but that seems not to work as is pointed out by Mike in the ML.

We have to consider implement pipe fucntion using Windows API 
as also indicated by Mike in the ML.  

 

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