Mastering Go - Second Edition

The C code

This subsection will present you with the C code for the example. It comes in two files: callC.h and callC.c. The included file (callC.h) contains the next code:

#ifndef CALLC_H 
#define CALLC_H 
 
void cHello(); 
void printMessage(char* message); 
 
#endif 

The C source file (callC.c) contains the next C code:

#include <stdio.h> 
#include "callC.h" 
 
void cHello() { 
    printf("Hello from C!\n"); 
} 
 
void printMessage(char* message) { 
    printf("Go send me %s\n", message); 
} 

Both the callC.c and callC.h files are stored in a separate directory, which in this case is going to be callClib. However, you can use any directory name you want.

The actual C code is not important as long as you call the right C functions with the correct type and number ...