On Wed, Aug 31, 2011 at 10:26 PM, Andrey Semashev <andrey.semashev@gmail.com> wrote:
[...]
In addition, on most platforms there will be multiple instances of type_id<T>::value for a single given T if the application uses type_id<T> in multiple modules. [...]
Can you elaborate on this? Are not you supposed to provide an explicit initialization for the type_id<T>::value for every T you are using and that would be the only instance? I can not find anything in the standard that would contradict your statement, at the moment, except that if you treat a template instantiation as a class in this case you may say that 9.4.2 para. 5 applies to template instantiations and then there should be no more than once instance of a static member for a particular set of template arguments.