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The const keyword is used to declare constants in C language, that is, values that cannot be modified. It improves program reliability and readability, and also includes the following benefits: prevents modification and avoids accidental changes; improves efficiency, and the compiler optimizes constant usage; improves readability and indicates that values are fixed; is widely used to store fixed values and create enumerations Enumerate types, protect sensitive data, and create read-only variables.
The meaning of const in C language
The const keyword is used to declare constants in C language, that is Value that cannot be modified. Constants play a vital role in a program as it helps in improving the reliability and readability of the program.
Declaration method
Constant is declared in C language by using the const keyword. The syntax is as follows:
<code class="c">const data_type variable_name = value;</code>
For example:
<code class="c">const int num = 10;</code>
Function
Const declared by const has the following functions:
Purpose
Constants have a wide range of uses in the C language, including:
Advantages
The benefits of using the const keyword to declare constants include:
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