The Preprocessor - C Preprocessor

Introduction

The preprocessor directives are shown here:

#define                  #endif                  #ifdef                    #line

#elif                    #error                  #ifndef                   #pragma

#else                    #if                     #include                  #undef

• Previous
• Next

Related Tutorials

• Use #line to set line number
• #ifndef means if not defined
• #else directive sets an alternative if #if fails.
• Use preprocessor directive called #include.
• Define Symbolic Constants with #define