[Octave-bug-tracker] [bug #44336] warning ("error", "all") changes "matlab-compatible" warnings if there's an "all" status before

[Carnë Draug]

URL:
  <http://savannah.gnu.org/bugs/?44336>

                 Summary: warning ("error", "all") changes "matlab-compatible"
warnings if there's an "all" status before
                 Project: GNU Octave
            Submitted by: carandraug
            Submitted on: Sat 21 Feb 2015 17:00:24 GMT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

Changing the state of all warnings to error, is supposed to leave
"Octave:matlab-incompatible" alone
http://hg.savannah.gnu.org/hgweb/octave/file/343ca73b1507/libinterp/corefcn/error.cc#l1515

This works fine unless there has been some change of error state that groups
them under "all". The following code is on 3.8.2 but I get the same behavior
on dev.


octave-cli-3.8.2:1> a = 1;
octave-cli-3.8.2:2> a++;
octave-cli-3.8.2:3> warning ("error", "all");
octave-cli-3.8.2:4> a++;
octave-cli-3.8.2:5> warning ("on", "all");
octave-cli-3.8.2:6> a++;
warning: potential Matlab compatibility problem: ++ used as operator
octave-cli-3.8.2:7> warning ("error", "all");
octave-cli-3.8.2:8> a++;
error: potential Matlab compatibility problem: ++ used as operator


I see two possible fixes: 1) have all the changes to 'all' warning ids skip
matlab-compatible instead of only error, 2) have error all, set
matlab-compatible to the previous state of "all".




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