753

753

WARNING: Partial specialization is not deducible.

No specializations can be generated using the class template partial specialization because not all of the partial specialization template formals are used in a way in the argument list that allows them to be deduced. For example:

template <typename T, typename U>       
class C;

template <typename T, typename U>       
class C <T, int>          // does not use formal U
{ ...
};

Note that template formals also cannot be deduced when they are used inside expressions or as part of the scope of a qualified type name.

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