(x86_64-linux-gnu-cpp-11.info)Top (x86_64-linux-gnu-cpp-11.info)TopThe C Preprocessor ****************** The C preprocessor implements the macro language used to transform C, C++, and Objective-C programs before they are compiled. It can also be useful on its own.
Overview Header Files Macros Conditionals Diagnostics Line Control Pragmas Other Directives Preprocessor Output Traditional Mode Implementation Details Invocation Environment Variables GNU Free Documentation License Index of Directives Option Index Concept Index-- The Detailed Node Listing -- Overview
Character sets Initial processing Tokenization The preprocessing languageHeader Files
Include Syntax Include Operation Search Path Once-Only Headers Alternatives to Wrapper #ifndef Computed Includes Wrapper Headers System HeadersMacros
Object-like Macros Function-like Macros Macro Arguments Stringizing Concatenation Variadic Macros Predefined Macros Undefining and Redefining Macros Directives Within Macro Arguments Macro PitfallsPredefined Macros
Standard Predefined Macros Common Predefined Macros System-specific Predefined Macros C++ Named OperatorsMacro Pitfalls
Misnesting Operator Precedence Problems Swallowing the Semicolon Duplication of Side Effects Self-Referential Macros Argument Prescan Newlines in ArgumentsConditionals
Conditional Uses Conditional Syntax Deleted CodeConditional Syntax
Ifdef If Defined Else ElifImplementation Details
Implementation-defined behavior Implementation limits Obsolete FeaturesObsolete Features
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