Subject: Re: [Boost-users] [random] Problems generating pseudorandom 64-bit ints across multiple computers
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2009-02-27 16:16:59
AMDG
James Madison wrote:
> Thanks for the reply, I tried implementing your suggestion of using a
> pair of iterators, but I think that I might be misinterpreting the
> source, and that it is still only using a 32-bit seed.
>
> From looking at the source, the seed appears to be stored as the
> variable "i", which is of type int. The seed method using two
> iterators does a ton of mangling over the range, and assigned i to the
> result.
I don't understand. I see this:
template<class It>
void seed(It& first, It last)
{
int j;
for(j = 0; j < n && first != last; ++j, ++first)
x[j] = *first;
i = n;
if(first == last && j < n)
throw std::invalid_argument("mersenne_twister::seed");
}
In Christ,
Steven Watanabe