I looked at the code and I as far as I also think 
that something should be printed to stdout.
The only thing I could see in the code was that malloc
wasn't used to allocate char *buf in the args to function
getline().

Magnus
 

On Fri, 7 Sep 2007 10:08:19 +0200
David Nečas (Yeti) <[EMAIL PROTECTED]> wrote:

> On Fri, Sep 07, 2007 at 01:45:09AM +0200, Magnus Myrefors wrote:
> > 
> > yeti>> I have tested your minimal testprogram with the whole
> > test-file. Unfortunately the program doesn't print anything to
> > stdout. It doesn't seem to be any data stored in the GSList
> > or in the datastructure, Data *data.
> 
> If there is any line that starts with a digit (after
> possible whitespace), it has to print either the data or an
> error.  If it doesn't, then there is no line whose first
> non-whitespace character would satisfy g_ascii_isdigit(c) or
> it does not end up in the list. This means either
> - g_ascii_isdigit(c) does not evaluate to TRUE for digits
>   on your system
> - g_slist_prepend() does not work
> - g_slist_reverse() does not work
> - the file looks different than you sent
> 
> Which one is it?
> 
> > (I tried to print a field
> > every time a new line was about to be read in the while-loop).
> > Furthermore, I wonder if the test,
> >  if(end == start)
> >    failfield = "Latitude";,
> > can conclude that the string was converted correctly with
> > g_ascii_strtod(). If g_ascii_strtod() converts only a fraction 
> > of the string, it will result in (end != start) and failfield
> > won't be set which results in no output to stderr.
> 
> end is the input to the next conversion, therefore failfield
> will be set in the next conversion (or trailing garbage
> message will be printed if it was the last).  Unless the
> file contain one of the few possible cases of concatenated
> floating point numbers that can be parsed back -- these can
> be catched by checking whether *end is space or '\0'.
> 
> But this does not matter at all.  Either way you get *some*
> output, either data or errors (or both in the case of
> trailing garbage).  You must get some output even if
> g_ascii_strtod() and strtol() return completely random
> values.  So I just don't believe you.  Period.
> 
> Yeti
> 
> --
> http://gwyddion.net/
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