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C++ - why explicit specialization of a friend function is allowed?

Assuming you fix the obvious syntax errors in your example: Explicit specializations of member function templates are also allowed in class scope. This has been clarified a long time ago, but it is a...

Tags: c++, templates, friend

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Is it possible to write a C++ template function whose template arg works if-and-only-if it is template?

Unfortunately type and non-type template (variadic) arguments do not mix well. For std::array you can add this: template inline unsigned ttypeid() { static unsigned id = gen_id(); return id;...

Tags: c++, templates, template-templates

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C++ - How to override a template function in Subclass?

You may want to look into the CRTP pattern for this, if I understand your intent correctly. Also, your outline has no way to properly free dynamic memory, you better derive BaseV from a common interfa...

Tags: c++, templates, inheritance

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C++ - Why does class template argument deduction fail when omitting empty angle brackets?

template< class IntType = int > class uniform_int_distribution; The class only has one template parameter and it is int by default. In std::uniform_int_distribution dis(0, array.size() - 1); you are...

Tags: c++, templates, template-argument-deduction

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C++ - How to conditionally declare a member overload on class templates?

Your enable_if does not depend on the template argument of the function, which is T. There is no substitution, and thus no substitution failure. Change to: template //...

Tags: c++, templates, overloading

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