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Published in:
2013 | OriginalPaper | Chapter
24. Preprocessor
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Abstract
The preprocessor is a program invoked by the compiler that modifies the source code before the actual compilation takes place. This modification is done according to the preprocessor directives that are included in the source files. The directives are easily distinguished from normal programming code in that they all start with a hash sign (
#). They must always appear as the first non-whitespace character on a line. Below is a table of the preprocessor directives available in C++ and their function.