You're incorrect, for C89 through C++17. I'd recommend not making statements about languages you've forgotten. In the C++ Working Paper, the Standardese is N45

You're incorrect, for C89 through C++17. I'd recommend not making statements about languages you've forgotten. In the C++ Working Paper, the Standardese is N4527 5.2.2 [expr.call]/4 "When a function is called, each parameter (8.3.5) shall be initialized (8.5, 12.8, 12.1) with its corresponding argument." followed by 8.5 [dcl.init] where /17.8 has a nice example: "Note: An expression of type "cv1 T" can initialize an object of type "cv2 T" independently of the cv-qualifiers cv1 and cv2. int a; const int b = a; int c = b;" (A "cv-qualifier" is const or volatile; they behave similarly in many contexts, hence the collective terminology for convenience.)