[patch,libgfortran] PR47567 Wrong output for small absolute values with F editing

[Jerry DeLisle]

Hi all,

After a lot of thought and the persistence of the OP, I think now the right 
thing to do is to get rid of the special handling we have for a zero F editing 
with width of one.  Otherwise, we add additional special handling for width 2.

The attached patch does this and simplifies the code.

Regression tested on x86-64. Revised test case attached.

OK for trunk?

Jerry

2011-02-22  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/47567
	* io/write_float.def (output_float): Remove special case handling of
	zero with width 1.
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