C Language Pre-Processor

C Programming Language

Evaluate your understanding of the C pre-processor with these multiple choice questions. Learn about the different macros and pre-processor directives in C and how to use them to write efficient and organized code. Take the quiz now!

The C Preprocessor is not a part of the compiler, but is a separate step in the compilation process. In simple terms, a C Preprocessor is just a text substitution tool and it instructs the compiler to do required pre-processing before the actual compilation. We'll refer to the C Preprocessor as CPP.

All preprocessor commands begin with a hash symbol (#). It must be the first nonblank character, and for readability, a preprocessor directive should begin in the first column.