Do the ‘at’ symbol (@) and dollar sign ($) have a special meaning in C or C++?
@ is generally invalid in C; it is not used for anything. It is used for various purposes by Objective-C, but that’s a whole other kettle of fish. $ is invalid as well, but many implementations allow it to appear in identifiers, just like a letter. (In these implementations, for instance, you could name a … Read more