I guess it would, it's just not something I've run into. The only time I've ever seen backslash's used in C or C++ as a line-break is in huge multi line macros

I guess it would, it's just not something I've run into. The only time I've ever seen backslash's used in C or C++ as a line-break is in huge multi line macros with lots of variables that has been broken up for readability. It never occurred to me it could be used to do multi line comments but there you are.