On 01/07/11 08:02, Neil Groves wrote:
Not only does the reverse adaptor work it can easily address your stated problem.Like this:
Well technically the reverse_range type does solve the problem, the reverse adaptor doesn't. But yes I can confirm that your conditional_reverse does prettymuch exactly what I want.
Note that you could also use the reversed_range class directly.
It is implemented in a detail namespace, but is brought into the boost namespace. This changed from the first versions of Boost.Range with adaptors. By popular demand the return types of the adaptors are now all public documented types.
My mistake, I see that reverse_range is a public type. However I would suggest that the documentation is less than entirely clear on this class. As far as I can tell, reverse_range is only mentioned in the documentation as a return type of the reversed range adaptor, and there is no other information about it. Furthermore I think you have shown that reverse_range has utility in its own right, and hence should be implemented in a separate header from the reversed range adaptor? Thanks for your help.