Robert Ramey wrote:
vicente.botet wrote:
However, I would probably consider this a user error in that it violates the intention of name spaces to avoid just this problem. Hi,
Is there a way the user can write their code to avoid this possible ambiguity? Is there a way the developper can add a new interface avoiding this possible ambiguity on the user code? How the C++ standard library does to avoid this kind of ambiguity in user code?
This is easy, just don't put any of your own stuff into the the namespace that the library uses.
Does this banish the use of using in user code if he/she wants to avoid incompatibilities with newer releases?
If you never put any of your own stuff in to the boost:: or std:: namespaces, you shouldn't have this problem.
If you use "using <namespace>" you could still have aproblem if one of your names accidently matches something this the namespace being used. For this reason, I don't particularly like using "using <namespace>" myself but rather just spell out the whole thing like boost::filesystem:: ...
Yep, I think that is generally considered better programming practice. If the length is bothersome, use a namespace alias: namespace fs = boost::filesystem; and then fs:: ... --Beman