Re: chaining compound assignment results in undefined behavior

[Hossein Sajjadi]

> Yes, but this is not undefined behaviour in Octave. "Undefined
> behaviour" is a specific term defined by the C and C++ standards.
> There is no Matlab or Octave standard, so there is no definition of
> "undefined behaviour" either.

 I don't see source of the interpreter but if the interpreter do
 exactly what C do undefined bahavior  may be transfered from c to
 octave.In the other word the expression a=1;a+=a+=4 may be evaluated 6
 sometimes or may be evaluated 10 in other situations such as change of
 compiler or multi thread execution ...