[Boost-users] Help with tuples - repeated members

From: John.Wismar_at_[hidden]
Date: 2004-07-12 16:17:33

I've been playing with Boost's tuples library, but I'm having some trouble
working through a wrinkle:

I have some routines that use tuple<int>, tuple<int, int>, etc., up to
tuple<int, int, int, int, int>.  I'd like to be able to declare these
objects using an alternative notation, along the lines of:

tuple_clone<int, 1>, tuple_clone<int, 2>, tuple_clone<int, 3>, etc.

The objective would be to allow me to write a function template that looked
something like this:

template <int N>
tuple_clone<int, N> fn(tuple_clone<int, N-1> t)
{
    tuple_clone<int, N> ret;
    ret.get_head() = getValue();
    ret.get_tail() = t;
    return ret;
}

Each time I try to write tuple_clone, though, I end up stumped.  Is it
possible to write something like this, while leveraging the tuples library?
Or is there a different approach I ought to look into?

Thanks!

--------------------------------
John Wismar
john.wismar_at_[hidden]
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