[Octave-bug-tracker] [bug #43780] Single-precision diagonal matrix expanded when multiplying logical vector

[Nir Krakauer]

URL:
  <http://savannah.gnu.org/bugs/?43780>

                 Summary: Single-precision diagonal matrix expanded when
multiplying logical vector
                 Project: GNU Octave
            Submitted by: nir_krakauer
            Submitted on: Mon 08 Dec 2014 05:38:09 PM GMT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: Nir Krakauer
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.2
        Operating System: GNU/Linux

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Details:


x0 = diag(ones(1E6, 1, "single")) * ones(1E6, 1, "logical");
  error: out of memory or dimension too large for Octave's index type



On the other hand,


x1 = diag(ones(1E6, 1, "double")) * ones(1E6, 1, "logical");
x2 = diag(ones(1E6, 1, "single")) * ones(1E6, 1, "single");


both work fine.







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