[implicit]

Most modern C++ code that I've seen restricts code to declaring a single variable per statement.

It's not really a big deal because things are also always introduced at the latest possible position. Each is also typically given an initializer. I'd consider it suspicious if I were to see C++ that declared 3 uninitialized pointers back to back like this.

And then you get to the codebases where the authors have chosen to embrace auto and type inference... :)