C++: how to declare template array as function parameter

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How can I declare template array as a parameter in templated function?

Something like this code:

template <unsigned i> void my_func (char (开发者_开发知识库&a)[i]); //yes, I do need that reference

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Just declare an extra template parameter, which contains the type in question.

template <typename T, unsigned i>
void my_func (T (&a)[i]);