2011/3/18 Vicente Botet <vicente.botet@wanadoo.fr>:
(1) A default constructor that is initialized with zero (2) An increment/decrement on the least steppable unit (3) A difference_type declaration
I think however that you need to add the indirections as soon or later you will find a user that is unable to change the class she uses and need a configuration point.
Fortunately I already have suitable templates for (1) and (3) and also (2) is already encapsulated in a function template that can easily be changed for the a customization point (a template struct that allows for partial template instantiation). So basically I need to change very little except for extending customization chapter in the docs.
Between Boost friends I understand that this open configuration is not needed
and the kind of "mutual library agnosticism" based on common concepts is a good thing for decoupled interoperable components.
but ... ;-)
This discussion has been a very insightful one for me. Many thanks to you, Hinnant and Robert :) Cheers, Joachim -- Interval Container Library [Boost.Icl] http://www.joachim-faulhaber.de