Re: [boost] Re: Cycle Iterator Adapter

From: nbecker_at_[hidden]
Date: 2002-02-05 15:53:51

>>>>> "rogeeff" == rogeeff  <rogeeff_at_[hidden]> writes:

    rogeeff> --- In boost_at_y..., nbecker_at_f... wrote:
    >> >>>>> "rogeeff" == rogeeff  <rogeeff_at_m...> writes:
    >> 
    rogeeff> --- In boost_at_y..., nbecker_at_f... wrote:
    >> >> What is the purpose of cycle_size_()?  Do you really give 
    rogeeff> any useful
    >> >> meaning to cycle_size < 0?
    >> 
    rogeeff> cycle_size_() in private helper function used to 
    rogeeff> calculate *positive* 
    rogeeff> cycle size. Did I answer yout question?
    >> 
    >> No.  My question is, can cycle_size every be negative?  Why?  What
    >> does negative cycle size mean?  I prefer negative cycle size is not
    >> allowed.

    rogeeff> m_bounds.second - m_bounds.first could be negative. But cycle_size_() 
    rogeeff> is always returing positive number. What is cycle_size you mentioning?

OK, I see.  But does the code actually work if m_bounds.second <
m_bounds.first?

For example, doesn't increment/decrement assume that first < second?