I ran into this today with VS2005 SP1: if you define the body of a specialization of a template class’ member function in a separate cpp file, the linker will barf:

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`template<class T> struct A { void f() {} };template<> void A::f(); // body in a separate cpp

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You have to define the body in all source files (or at least one) that actually use the specialization of that function, normally in the header file:

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`template<class T> struct A { void f() {} };template<> void A::f() { }

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Not sure if I have explained correctly, but I hope you get the idea.