Newbie question here - but I have noticed on a few peoples example programs, the use of _ or __ in front of some variables. I was just wondering what the purpose of these underscores is?
Do they serve a purpose, or are they just so the variables stand out or something?
Typically, the underscore is used in front of member variables in a class, to distinguish them (for the reader) from local variables. The presence or absence of the _ (or __) makes no difference to the compiler.