 Cx51 User's Guide | |
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Cx51 User's Guide
Cx51 Introduction Compiling Programs Language Extensions Preprocessor Header Files
How #include Works Including Files Once Only Macros Simple Macros Complex Macros Macro Operators Stringize (#) Token Pasting (##) Defined Predefined Macros Undefining and Redefining Macro Caveats Preprocessor Directives Conditional Compilation #define #elif #else #endif #error #if #ifdef #ifndef #include #line #message #pragma #undef #warning Advanced Programming 8051 Derivatives Error Messages Library Reference AppendixHeader Files
Header files or include files are included and processed by the preprocessor. They provide you with a convenient way to publish global variables, function prototypes, manifest constants, and macro definitions that are used throughout a large development effort.
The #include directive specifies the name of the header file to include.
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