Re: [Boost-users] [Random] Passing an arbitrary uniform random number generator to a function

Subject: Re: [Boost-users] [Random] Passing an arbitrary uniform random number generator to a function
From: Neal Becker (ndbecker2_at_[hidden])
Date: 2010-04-26 15:13:59

Joseph Wakeling wrote:

> Hello,
> 
> Suppose that I have a function that takes a uniform random number
> generator as an argument, e.g.
> 
>     double foo(mt19937 &urng)
>     {
>         double x = uniform_real<double> (0.0, 10.0) (urng);
>         double y = uniform_real<double> (5.0, 7.0) (urng);
> 
>         return (x*y);
>     }
> 
> Is there a way to make the choice of random number generator arbitrary
> (i.e. not limited to mt19937) without making the function a template?
> Alternatively, is there a better way of passing around the basic uniform
> random number generator?
> 
> The reason for the no-template rule is that I would like to pass a URNG
> to a virtual function in a class, and I would really not like to have to
> make the class itself a template dependent on the type of URNG.
> 
> Can someone recommend a solution?
> 
> Thanks and best wishes,
> 
>     -- Joe
member func can be template without class class being template.