What is the difference between #define and const in C++?

Question

#define MAX 10 and const int MAX = 10 have the same value but are you supposed to use one over the other? Are there pros and cons to them? Or is it just user preference?

Answer 1

The one place that makes a huge difference between them is:
int array[MAX];

The define is legal to be used in this case. While some compiler's do allow it, the usage of the constant is not supported by the current standard.

Answer 2

Three is no big difference between them, there are in compile time and how to check data types and handle there values!

read this :
https://stackoverflow.com/questions/6442328/what-is-the-difference-between-define-and-const