[Octave-bug-tracker] [bug #54622] test importdata fails in dev octave with windows

[Dan Sebald]

Follow-up Comment #25, bug #54622 (project octave):

Oh, dlmread doesn't read the Inf, etc. and that's done on a second pass. 
dlmread fills in NA for the empty values.  Got it.

There doesn't seem a way of conveniently reading NaN and +-Inf:

https://stackoverflow.com/questions/11420263/is-it-possible-to-read-infinity-or-nan-values-using-input-streams

https://stackoverflow.com/questions/1923837/how-to-use-nan-and-inf-in-c

OK, so continuing where Rik left off...



    file_content = ostrsplit (fileread (fname), "\n");

    na_rows = find (any (na_idx, 2));
    for ridx = na_rows(:)'
      row = file_content{ridx+header_rows};
      if (delimiter == " ")
        fields = regexp (strtrim (row), ' +', 'split');
      else
        fields = ostrsplit (row, delimiter);
      endif


John, could you delete that semicolon on the first line above in your
importdata.m script and check what the file_content looks like?  I'm going to
guess that maybe it is empty when the test fails.

One thing that concerns me is that I see in the dlmread.cc code that there is
an input_file.open(), I don't see an associated "close()" on that file when
all done.


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