Mimic of Object-Oriented Class in C language.

interface.c

#include <stdio.h>
#include "interface.h"


static void print_hi(char *name)
{
	printf("Hi %s\r\n", name);
}


static void print_bye(char *name)
{
	printf("Bye %s\r\n", name);
}


static void inc_array(int *pArray, int len)
{
    int i;
    
    for(i = 0; i < len; i++)
        pArray[i]++;		// Increment each element by +1
}


// Define functions
const sMenu foo =
{
	print_hi,
	print_bye,
	inc_array
};

interface.h

#ifndef INTERFACE_H
#define INTERFACE_H


typedef struct
{
	void (*print_hi)(char *name);
	void (*print_bye)(char *name);
	void (*inc_array)(int *pArray, int len);
} sMenu;


extern const sMenu foo;


#endif		// INTERFACE_H

main.c

/*******************************************************************************
 *
 *	Author:			Austin Schaller
 *	Module:			main.c
 *	Description:		C Class Implementation
 *
*******************************************************************************/

/*
 *	This program tests the ability for function pointers to behave in a manner
 *	similar to that of a class in C++. 'print_hi', 'print_bye', and inc_array
 *	are statically defined in static_test.c, but we are allowed to access them
 *	through 'sMenu'.
 */


#include <stdio.h>
#include "interface.h"


#define		LEN_ARRAY		3		// Length of array


int main()
{
	int i;
	int A[LEN_ARRAY] = {0, 1, 2};
	
	
	foo.print_hi("John Doe");
	foo.print_bye("John Doe");
	
	
	printf("\r\n--- Initial Array ---\r\n");
	
	// Check contents before modifying array
	for(i = 0; i < LEN_ARRAY; i++)
	    printf("A[%d]: %d\r\n", i, A[i]);
	
	
	foo.inc_array(&A[0], LEN_ARRAY);		// Increment each element by +1
	
	printf("\r\n--- Modified Array ---\r\n");
	
	
	// Check contents after modifying array
	for(i = 0; i < LEN_ARRAY; i++)
	    printf("A[%d]: %d\r\n", i, A[i]);
	
	return 0;
}