null character without reason in written files

[Janne Blomqvist]

On Fri, Nov 1, 2013 at 12:53 AM, N.M. Maclaren <nmm1@cam.ac.uk> wrote:
> On Oct 31 2013, Steve Kargl wrote:
>>
>> On Thu, Oct 31, 2013 at 10:56:20PM +0100, Daniel Molina García wrote:
>>>
>>>
>>> > When you say "roads of vaccum" do you mean vertical or horizontal >
>>> > stripes.
>>>
>>> Only horizontal would have sense such as I described it.
>>>
>>
>> Well, then I guess I would need to see your code, because
>> the trivial code that I wrote based on your description
>> shows no stripes with gfortran 4.2.5, 4.3.6, 4.4.7, 4.5.4,
>> 4.6.4, 4.7.4, 4.8.2, and trunk.
>
>
> Complete waste of time, I am afraid.  I referreed this area for 25
> years, and the only generators that I ever saw that would fail that
> were those in Numerical Recipes Version 1.
>
> Try Marsaglia's DIEHARD tests.  I have some that are rather more
> stringent, though they test different aspects, and it doesn't fail
> them.  I haven't run DIEHARD on it, but I assume that somebody has.

I haven't tested myself, but I recall skimming through some paper
testing various PRNG's, and IIRC KISS (which is what gfortran uses)
passed DIEHARD, DIEHARDER(?), and TEST_U1(sp?).

-- 
Janne Blomqvist