Hi Alex -
You should seed the rng first before using it. Also, there are much
better rngs out there than rand (though it's much better than it used
to be). I tend to plug for Mersenne Twister which is both faster,
produces better random numbers, and can be used in a parallel
programming environment.
Brian
On Sat, 12 Mar 2005 08:04:59 +0200, Alex Vinokur
<alexvn@xxxxxxxxxxxxxxxxxxxxx> wrote:
> ------ foo.cpp ------
> #include <cstdlib>
> #include <iostream>
> using namespace std;
> int main ()
> {
> cout << rand() << endl;
> cout << rand() << endl;
> return 0;
> }
> ---------------------
>
> // g++ version 3.3.3 (cygwin special)
>
> $ g++ foo.cpp
>
> The program below generates the following output:
> -----------
> 0
> 1481765933
> -----------
>
> First pseuso-random number is 0.
>
> Is it by purpose?
>
> --
> Alex Vinokur
> email: alex DOT vinokur AT gmail DOT com
> http://mathforum.org/library/view/10978.html
> http://sourceforge.net/users/alexvn
>
>
