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Re: new function: textscan.m


From: Michael D Godfrey
Subject: Re: new function: textscan.m
Date: Fri, 22 Oct 2010 22:52:31 -0700
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100921 Fedora/3.1.4-1.fc13 Thunderbird/3.1.4

On 10/22/2010 10:47 PM, John W. Eaton wrote:
Ah, good idea, I had forgotten about that feature.  I'll check in the
follwoing function:

  function retval = is_valid_file_id (fid)

    retval = false;

    if (nargin == 1)
      try
        [file, mode, arch] = fopen (fid);
        retval = ! isempty (file);
      end_try_catch
    else
      print_usage ();
    endif

  endfunction

Thanks,

jwe
Just a question: is there any need to do an fclose(fid) after the
fopen(fid) ?

Michael


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