From: Eric Niebler (eric_at_[hidden])
Date: 2008-03-20 20:11:56
Larry Evans wrote:
> On 03/20/08 18:10, Eric Niebler wrote:
>> Tags don't have arities, expressions do.
>> The arity of tag::function could be anything. The arity represents the
>> number of children of an expression node. So the arity is a very real
>> part of an expression.
>>
> So:
>
> expr<tag::shift_right, Args, 20>
>
> is a valid expression?
If Args has 20 elements in it, sure.
-- Eric Niebler Boost Consulting www.boost-consulting.com