[Octave-bug-tracker] [bug #38704] Inconsistent short-circuit behavior

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?38704>

                 Summary: Inconsistent short-circuit behavior
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Mi 10 Apr 2013 19:42:54 UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: Matthias Fuchs
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.6.3
        Operating System: GNU/Linux

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Details:

I ran the following script with the octave interpreter and observed that the
first if-expression is interpreted without error while the second one fails:


do_braindead_shortcircuit_evaluation (1)
 
% this works
util = ~0;
if util | [](:,1)
endif
 
% fails
if ~0 | [](:,1)
endif


In other words, it seems that in the latter case not only the first but also
the second expression is evaluated which results in an error (index out of
bounds). Unfortunately, I do not have access to Matlab so I do not know if
this behavior is the same there.




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  <http://savannah.gnu.org/bugs/?38704>

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