[patch, libgfortran] PR58324 Bogus END-of-line error with list-directed I/O

[Tobias Burnus]

Jerry DeLisle wrote:
> The attached patch fixes this problem by first reading the next available char
> to see if EOF is encountered.  If so, issue the EOF error. If not use eat_line
> to find the end of the line.  If the end of the line is at the end of the file,
> it will be caught on any subsequent attempt to read.
>
> The problem particularly manifests for empty reads that do no other actual file
> reading except in (finish_list_read).
>
> Regression tested on x86-64-linux-gnu.  NIST tested. test case provided.
> Ok for trunk?

Looks good to me - thanks for the patch!

> 2014-03-14  Jerry DeLisle  <jvdelisle@gcc.gnu>
>
> 	PR libfortran/58324
> 	* io/list_read.c (finish_list_read): Read one character to check
> 	for the end of the file.  If it is the end, then issue the file
> 	end error message.  If not, use eat_line to reach the end
> 	without giving error.  The next attempt to read will then
> 	issue the error as described above.