For those wondering (like I did) "But there already is a C++ facility whose sole purpose is determining the type of an expression [or entity] without evaluatio

For those wondering (like I did) "But there already is a C++ facility whose sole purpose is determining the type of an expression [or entity] without evaluation it?" decltype() only exists since C++11 (and the above article is from 2006). https://en.cppreference.com/w/cpp/language/decltype https://en.cppreference.com/w/cpp/language/decltype