How to work with Preprocessor Directives in C Programming

C provides many features like structures, unions and pointers. Another unique feature of the C language is the preprocessor. The C preprocessor provides several tools that are not present in other high-level languages. The programmer can use these tools to make his program easy to read, easy to modify, portable and more efficient. The preprocessor is a program that processes the source code before it passes through the compiler. Preprocessor directives are placed in the source program before the main line. Before the source code passes through the compiler, it is examined by the preprocessor for any preprocessor directives. If

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How to work with Preprocessor Directives in C Programming
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