Preprocessor Reference

This reference explains the preprocessor as it is implemented in Microsoft® C/C++. The preprocessor performs preliminary operations on C and C++ files before they are passed to the compiler. The preprocessor allows you to:

Define and undefine macros.
Expand macros.
Conditionally compile code.
Insert specified files.
Specify compile-time error messages.
Apply machine-specific rules to specified sections of code.

What do you want to know more about?

	Preprocessor directives.
	Preprocessor operators.
	Predefined macros.
	Pragmas.

Interesting home pages

	Visual C++ Home The entire Visual C++ product.
	C/C++ Language Quick Reference Reference of language elements -- keywords and operators.
	Compiling and Linking Building your program.