Defining Macros with Arguments

You can define macros with arguments using the #define directive. Here's an example:

1#include <iostream>
2
3#define MULTIPLY(a, b) ((a) * (b))
4
5int main() {
6  std::cout << MULTIPLY(3, 4) << "\n";
7  std::cout << MULTIPLY(2 + 3, 4 + 5) << "\n";
8}

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When defining macros with arguments, it's important to surround the arguments with parentheses to ensure proper precedence. This prevents unexpected behavior when the macro is expanded with complex expressions as arguments.