Source preprocessor A typical preprocessor like in the C language. Understanding the preprocessor This is an introduction to the code preprocessor. Compilers command line options Preprocessor options can be used with fglcomp and fglform compilers. File inclusion The &include directive instructs the preprocessor to include a file. Conditional compilation Integrate code lines conditionally. Simple macro definition A simple macro is identified by its name and body. Function macro definition Function macros are preprocessor macros which can take arguments. Predefined macros A set of predefined preprocessor macros are available. Stringification operator Transforms a preprocessor macro element to a string. Concatenation operator Concatenates two parameters of a preprocessor macro. Undefining a macro Undefines a preprocessor macro.