[Octave-bug-tracker] [bug #33955] fscanf with -NaN, -Inf, -NA

[kloof]

URL:
  <http://savannah.gnu.org/bugs/?33955>

                 Summary: fscanf with -NaN, -Inf, -NA
                 Project: GNU Octave
            Submitted by: kloof
            Submitted on: Fri 05 Aug 2011 12:58:07 GMT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Feature Request
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.4.0
        Operating System: GNU/Linux

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Details:

Reading files with fscanf doesn't work with the negative version of "NaN". I
assume the same holds for "Inf" and "NA".

The positive version were addressed in:

http://octave.1599824.n4.nabble.com/reading-NaN-with-fscanf-td1622767.html

Can be done for the negative versions as well? Should this be done in the same
block of oct-stream.cc as describe above, or does octave already assume it's a
number when the first character is a '-'? 

BTW: I think -Inf makes sense, but -NaN and -NA don't. But people put those
values in data files anyway.






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