Constants in C are fixed values that do not change during the execution of a program. They enhance code readability, maintainability, and reduce errors by replacing magic numbers with meaningful names. C supports various types of constants, including integer, floating-point, character, and string constants. You can define constants using the #define pre-processor directive or the const keyword. This tutorial on constants in C explains the syntax, types, and best practices for using constants effectively. Whether you're a beginner or refreshing your knowledge, mastering constants is essential for writing clean, reliable C programs that are easier to debug and maintain.
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