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

const	#define
Has a data type	No data type, only text
Handled by the compiler	Handled by the preprocessor
Follows scope rules	Valid from the line it is written
Has a memory address	No address

Example: const int MAX = 10; and #define MAX 10. Prefer const (or enum) for plain values, because it is safer. See C Constants.

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