Re: += operator strangeness in octave 4.4 build

[Doug Stewart]

On Thu, May 10, 2018 at 6:59 AM, Richard Kirk <address@hidden> wrote:

Hi.

I have a 4.4 source build on CenoOS 6.5. This took a bit of getting to work, but it all seems to be up and running with one mysterious exception.

I make a local file "dummy.m" with just 3 lines...
# Increment count

count += 1;

I now try to use it to increment 'count'...

octave:1> count = 0;
octave:2> count += 1;
octave:3> count
count =  1

Okay, that worked. Now let's do that by calling dummy.m...

octave:4> dummy
error: count(61,_): but count has size 1x1
error: called from
    dummy at line 3 column 1

If I replace count += 1; with ++count; in dummy.m then it works.That is my workaround, and I am fine with that for now. However, it used to work in 3.4.3.

Does anyone else see this, or have I mucked up my build somehow? If it is real, I can file a bug.

Thanks
Richard Kirk

I am un ubuntu 16.04 and octave 4.4.0

and I see the same problem that you see.

I looked in libinterp/parse-tree/oct-parse.in.yy

And the fix that was put there

http://hg.savannah.gnu.org/hgweb/octave/rev/d2cfaaa57677

seems to be gone!

(arround line 4000)

--

DAS