[Octave-bug-tracker] [bug #59830] Architecture-dependent results for arithmetic operations involving NA

[Rafael Laboissiere]

URL:
  <https://savannah.gnu.org/bugs/?59830>

                 Summary: Architecture-dependent results for arithmetic
operations involving NA
                 Project: GNU Octave
            Submitted by: rlaboiss
            Submitted on: Tue 05 Jan 2021 10:10:12 PM 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
                 Release: 6.1.0
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

Octave is producing different results for arithmetic operations involving NA
in different architectures of Debian GNU/Linux.  On a amd64 system, I get:


$ echo "NA / 1" | octave-cli
ans = NA


while on a mips64el system, I get:


$ echo "NA / 1" | octave-cli
ans = NaN


This is preventing a BIST in the level-set package to succeed on a mips64el
system.

Does anyone know the cause for this disparity?







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