std::is_base_of for template classes
Is there a way to test std::is_base_of when A is a template class?
template class A {};
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The following solution works with protected inheritance.
template class BaseTemplate, typename Derived, typename TCheck = void> struct test_base_template; template class BaseTemplate, typename Derived> using is_base_template_of = typename test_base_templatestatic constexpr std::true_type test(BaseTemplate *); static constexpr std::false_type test(...); using is_base = decltype(test((test_base_template *) nullptr)); }; //Derive - is not a class, so it is always false_type template class BaseTemplate, typename Derived> struct test_base_template Surprisingly, on VS2017, it works with multiple inheritance from the same template, like C< int > and C< float > both. (have no idea how!)
Check the Link to test code
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