Hi,
On 07/13/2014 06:03 PM, Ulrich Drepper wrote:
On Sun, Jul 13, 2014 at 11:43 AM, Paolo Carlini
<paolo.carl...@oracle.com> wrote:
and I think: the normal distributions in x and y do have a non-trivial state
(_M_saved, _M_saved_available) which, at any given moment, is different in x
and y. Then the trivial inserter of x is called and the trivial extractor of
y is called, nothing changes in y. I don't see how the following invocations
of y(g) can produce the same sequence of numbers that would be produced by
invocations of x(g).
Remember: we are talking about distributions, not RNGs.
The distribution has no parameters so given the same input (i.e.,
random byte sequences) it will create the same output all the time.
Sorry, I still don't get it. When operator() of x and y, two
uniform_on_sphere_distribution, call _M_n(__urng) and those _M_n have a
different state, the numbers produced are in general different. For
example, suppose _M_saved_available is true in both _M_n, everything is
already "decided", no RNGs are involved.
Paolo.
