Re: Using local variable for memoizing in recursion

[Дмитрий Рыбас <drybas@gmail.com>]

As it appered that I did not subscribe (sent request to the wrong address), I couldn't answer...

Well, going back to memoizing, Bill wrote:

You can use local():

p(n,k)=
{
  local(M=Map());
  memo_p(n,k);
}

Using local() is partial solution: one has to use the same (shared) name of variable in both calling and called functions. Is it possible to declare local variable in function a() and somehow pass it's name (or other reference) to function b() ? 

Or better, somehow put recursive function b() inside function a() that creates map, calls recursive function and the destroys everything except returned result?

Regards,

Dmitry.