AMDG Chris Hite wrote:
You've created a conflict among the placeholders. Both bind and lambda::bind
declare _1. bind declares its placeholders at global scope, but lambda includes in the lambda namespace.
My using the inner namespace shouldn't include the outer namespace unless somewhere in the lambda namespace there's a using ::boost. I would consider that to be namespacing bug. For example using boost::lambda shouldn't put shared_ptr in scope either.
Consider the following example code: namespace Boost{ typedef char _1; namespace Lambda{ typedef int _1; //using namespace ::Boost; //very naught. don't do this!!! } }
void foo(){ using namespace Boost::Lambda; _1 i; //fine as long as the using line above is commented out }
Somewhere in the boost::lambda namespace there is a using namespace boost. I can't find it though.
Boost.Bind includes the placeholders in the global namespace, not in namespace boost. In Christ, Steven Watanabe