Why use #define instead of a variable

Question

What is the point of #define in C++? I\'ve only seen examples where it\'s used in place of a \"magic number\" but I don\'t see the point in just giving that val

Answer 1

#define can accomplish some jobs that normal C++ cannot, like guarding headers and other tasks. However, it definitely should not be used as a magic number- a static const should be used instead.