C++ Macros vs Constants: What's the Difference?

What is the difference between macros and constants in C++?

Macros are preprocessor directives that define code snippets, while constants are fixed values defined in the code.

Can you give me an example of a macro in C++?

Sure! A simple macro could be defined as #define PI 3.14, which replaces PI with 3.14 during preprocessing.

And how do constants differ in terms of scope?

Constants can have different scopes, like local or global, while macros are replaced before compilation and have no scope.

Which one is generally preferred in modern C++?

Constants are generally preferred due to type safety and better debugging support compared to macros.