Compiler Warning (level 1) C4910
'<identifier>' : '__declspec(dllexport)' and 'extern' are incompatible on an explicit instantiation
The explicit template instantiation named <identifier> is modified by both the __declspec(dllexport) and extern keywords. However, these keywords are mutually exclusive. The __declspec(dllexport) keyword means instantiate the template class, while the extern keyword means do not automatically instantiate the template class.
See also
Explicit Instantiation
dllexport, dllimport
General Rules and Limitations
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