[Octave-bug-tracker] [bug #49645] waitfor should silently accept an empty graphics handle

[Guillaume]

URL:
  <http://savannah.gnu.org/bugs/?49645>

                 Summary: waitfor should silently accept an empty graphics
handle
                 Project: GNU Octave
            Submitted by: gyom
            Submitted on: Fri 18 Nov 2016 04:53:53 PM GMT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: Guillaume
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

waitfor throws an error if its input is empty:


>> waitfor ([])
error: invalid conversion from real matrix to real scalar
error: waitfor: invalid handle value


while Matlab continues silently:


>> waitfor([])
>>





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