[Octave-bug-tracker] [bug #41957] print -P fails, and print when no figure exists crashes

[Rik]

Follow-up Comment #1, bug #41957 (project octave):

Could you run the following test code in Matlab?


ishandle ([])


Does this return an empty matrix, or 0 because an empty matrix is definitely
not a handle?

In part of the patch you have


     if (! any (strcmp (arg_st.devopt, gs_device_list))
-      || ! any (strcmp (arg_st.devopt, {"pswrite", "ps2write"})))
+      ||  any (strcmp (arg_st.devopt, {"pswrite", "ps2write"}))
+       )
       ## Only postscript and supported ghostscript devices
       error ("print: invalid format for spooling to a printer")
     endif


The intent was to check for formats which couldn't be spooled to the printer. 
On UNIX systems postscript usually can be sent to the printer which is why
there was a check for the format NOT being pswrite.  By dropping the '!' we
will now error out for what seems a legitimate case.



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