Re: [Boost-users] shared_ptr and Visual Studio 2008 Express SP1

Igor R wrote:

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For example in .cpp files I using several usings such as:

using namespace std; using namespace std::tr1; using namespace boost;

In source code I have something like this:

shared_ptr<SomeType> var = /*...*/;

And for each such line I have an error: error C2872: 'shared_ptr' : ambiguous symbol

Nothing unusual about that: you have two different shared_ptr's visible in scope: boost::shared_ptr and std::tr1::shared_ptr. You need to decide which you intend to use and either prefix all shared_ptr usages with the appropriate qualifiers, or else just take care to only import the one shared_ptr in the first place. HTH, John.