You are comparing apples and oranges. strcat is a library function which is easy to avoid, whereas the implicit type conversion behavior is part of the core C+

You are comparing apples and oranges. strcat is a library function which is easy to avoid, whereas the implicit type conversion behavior is part of the core C++ language and very difficult to escape. Non-prototyped function calls are there, but they trigger warnings on any compiler from the last 3 decades. Anyway, thanks for playing the "deny, obfuscate, shift blame for broken C++ design decisions" game.