[Octave-bug-tracker] [bug #54414] Not recognizing that indices greater than (roughly) 2^63 or 20 digits are too large

[Dan Sebald]

URL:
  <http://savannah.gnu.org/bugs/?54414>

                 Summary: Not recognizing that indices greater than (roughly)
2^63 or 20 digits are too large
                 Project: GNU Octave
            Submitted by: sebald
            Submitted on: Wed 01 Aug 2018 02:38:47 AM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

    _______________________________________________________

Details:

When a value input to zeros is larger than approximately 2^63, or maybe it is
20 digits, there is no warning about too big and instead the value is treated
as 0.  E.g.,


octave:1> int64(inf)
ans = 9223372036854775807
octave:2> zeros(9223372036854775807)
ans = [](0x0)
octave:3> # Drop a digit
octave:3> zeros(922337203685477580)
error: out of memory or dimension too large for Octave's index type
octave:3> 





    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?54414>

_______________________________________________
  Message sent via Savannah
  https://savannah.gnu.org/