공식 문서는 아래 https://en.cppreference.com/w/cpp/utility/initializer_list std::initializer_list - cppreference.com (not to be confused with member initializer list) template class initializer_list; (since C++11) An object of type std::initializer_list is a lightweight proxy object that provides access to an array of objects of type const T. A std::initialize en.cppreference.com const T 라는 ..