Visual Studio, C7

7-1. function

 

add source file named xinadist.c

int xinadist(int x, int y)
{
	return (x * y);
}

 

add header file named xinadist.h

extern int xinadist(int x, int y);

 

main code

#include <stdio.h>
#include "xinadist.h"
#define FUNC1

#if defined FUNC1
int main(void)
{
	int a, b;
	int result;

	a = 10;
	b = 20;
	result = xinadist(a, b);

	printf("********** include xinadist.h **********\n");
	printf("****************************************\n");
	printf("** a = [%d], b = [%d], result = [%d] ** \n", a, b, result);
	printf("****************************************\n");
	return 0;
}
#endif