I need two traits concerning integers. The first one would be like std::is_integral (or boost::is_integral), but usable with user defined types (for example a class wrapping an int, say int_wrapper)
How does the following code work? typedef char (&yes)[1]; typedef char (&no)[2]; template <typename B, typename D>
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Suppose we have the following template class template<typename T> class Wrap { /* ... */ }; We can not change Wrap. It is important.
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