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⇱ C Macro Archives - GeeksforGeeks

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When to Use Enum Instead of Macro in C?

Last Updated: 23 July 2025

In C programming, bothenums (short for enumeration)andmacros are used for defining symbolic names associated with specific values. However, there are situations where usin...read more

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Types of pragma directives in C

Last Updated: 23 July 2025

Pragma Directives: The pragma directive is used to control the actions of the compiler in a particular portion of a program without affecting the program as a whole. Pragm...read more

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Macro & Preprocessor

How to detect Operating System through a C program

Last Updated: 15 July 2025

One can find out the operating system on which the program is running with the help of C programming. This piece of information is very useful for the case where we want t...read more

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Operating Systems

Macros and its types in C

Last Updated: 15 July 2025

In C programming, a macro is a symbolic name or constant that represents a value, expression, or code snippet. They are defined using the #define directive, and when encou...read more

Predefined Macros in C with Examples

Last Updated: 12 July 2025

According to C89 Standard, C programming language has following predefined macros: __LINE__ Macro: __LINE__ macro contains the current line number of the program in the...read more

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Write a C macro PRINT(x) which prints x

Last Updated: 23 July 2025

At the first look, it seems that writing a C macro which prints its argument is child's play. Following program should work i.e. it should print x c #define PR...read more

C-Macro & Preprocessor