[Octave-bug-tracker] [bug #62552] Operator spacing works for i and j but no other variables

[Arun Giridhar]

URL:
  <https://savannah.gnu.org/bugs/?62552>

                 Summary: Operator spacing works for i and j but no other
variables
                 Project: GNU Octave
               Submitter: arungiridhar
               Submitted: Tue 31 May 2022 04:57:31 PM EDT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Missed Error or Warning
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: 7.1.0
         Discussion Lock: Any
        Operating System: Any


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Follow-up Comments:


-------------------------------------------------------
Date: Tue 31 May 2022 04:57:31 PM EDT By: Arun Giridhar <arungiridhar>
This is based on a user report at
https://octave.discourse.group/t/strange-behaviour-of-operator/2755

The ++ and -- operators need to hug their operands, but does that rule extend
to the += and friends as well? If yes, then i and j are not triggering that
error. If not, then variables other than i and j need to be allowed that
spacing.

Calling this a missed error since i and j do not trigger the spacing error,
but please reclassify it if that is not right.


octave:3> i = 0; i += 1; i+=1; i +=1; i+= 1;
octave:4> j = 0; j += 1; j+=1; j +=1; j+= 1;
octave:5> k = 0; k += 1; k+=1; k +=1; k+= 1;
error: k used as variable and later as function

octave:7> k +=1
error: k used as variable and later as function

octave:8> i +=1
i = 5

octave:9> j +=1
j = 5









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