Codes on C functions

Function arguments:

• Arguments of function working like local variables.
• Local variables can access only from the same function.

#include<stdio.h>
void fun(int);
int main()
{
	int x=2;
	fun(x);
	printf("x value is : %d \n", x);
	return 0;
}
void fun(int x)
{
	++x;
}

Output this code:

#include<stdio.h>
void fun(int);
int main()
{
	int x=2;
	fun(x++);
	printf("x value is : %d \n", ++x);
	return 0;
}
void fun(int y)
{
	printf("y value : %d \n", y++);
}

In function call, all arguments execute from right to left

#include<stdio.h>
void fun(int, int, int);
int main()
{
	int x=2;
	fun(++x, ++x, ++x);
	return 0;
}
void fun(int x, int y, int z)
{
	printf("x value : %d \n", x);
	printf("y value : %d \n", y);
	printf("z value : %d \n", z);
}

Output this code:

#include<stdio.h>
void fun(int, int, int);
int main()
{
	int x=5;
	fun(++x, x++, x--);
	fun(--x, x--, ++x);
	return 0;
}
void fun(int x, int y, int z)
{
	printf("%d, %d, %d\n", x, y, z);
}

Crack this code:

#include<stdio.h>
void fun(int, int);
int main()
{
	int x=5;
	fun(++x, x--);
	fun(--x, x++);
	printf("%d \n", x++);
	return 0;
}
void fun(int x, int y)
{
	printf("%d, %d\n", x, y);
}