[Octave-bug-tracker] [bug #51682] No error issued for left division of scalar_double_type \ integer_matrix_type, also wrong answer

[Rik]

URL:
  <http://savannah.gnu.org/bugs/?51682>

                 Summary: No error issued for left division of
scalar_double_type \ integer_matrix_type, also wrong answer
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Mon 07 Aug 2017 08:26:37 AM PDT
                Category: Interpreter
                Severity: 4 - Important
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: Confirmed
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

    _______________________________________________________

Details:

Left division incorrectly returns a scalar type, rather than a matrix type,
for scalar_double \ integer_matrix.

Example code:


octave:1> x = int8 ([1 0; 1 1])
x =

  1  0
  1  1

octave:2> 2 \ x
ans =  0.50000
octave:3> 2 \ double (x)
ans =

   0.50000   0.00000
   0.50000   0.50000



Since left-division isn't implemented for integer data types (see bug #51650)
this case should also just throw an error about an unimplemented operator
rather than calculating a value which is misleading.





    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?51682>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/