C++: const vs #define
An example of an AI chatbot conversation about C++ constants and preprocessor directives.
What's the difference between using 'const' and '#define' in C++?
The 'const' keyword defines a constant variable with a specific type, while '#define' creates a preprocessor macro.
Can you give me an example of each?
Sure! For 'const', you might write: 'const int max = 100;'. For '#define', it would be: '#define MAX 100'.
Are there any advantages to using 'const' over '#define'?
Yes, 'const' has type safety and scope, while '#define' does not, which can lead to potential errors.
When should I use one over the other?
Use 'const' for type-safe constants and '#define' for simple macros or when you need to define constants for preprocessor conditions.
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