/*
//////////////////////////////////////////////////////////////////
//                   Sample #1: parameters
//	A sample Program to see how parameters work!
//////////////////////////////////////////////////////////////////
*/

#include <stdio.h>


int max( int, int );


int main (){
	int x = 31;
	int y = 513;
	int z;

	printf("In Main:\n");
	printf("These are the ACTUAL Parameters\n");
	printf("The first parameter = x.");
	printf("  The value of x = %d\n", x );
	printf("The second parameter= y" );
	printf("  The value of y = %d\n\n", y );

	z = max( x, y );

	printf("Did a == x?\n");
	printf("Did b == y?\n\n");

	printf("The max of %d and %d is %d\n", x, y, z );

	return 0;
}


int max( int a, int b ){
	printf("In MAX:\n");
	printf("These are the FORMAL Parameters\n");
	printf("The first parameter = a.");
	printf("  The value of a = %d\n", a );
	printf("The second parameter= b" );
	printf("  The value of b = %d\n\n", b );

	if( a > b )
		return a;
	else
		return b;
}





-----------------------cut here----------------------------


/*
//////////////////////////////////////////////////////////////////
//                   Sample #2: parameters
//	A sample Program to see how parameters work!
//
// This version is left for your own observations.  The only 
// difference between this one and #1, I've reversed the order
// of x and y in the call to max.  What happens when I do this?
//////////////////////////////////////////////////////////////////
*/

#include <stdio.h>


int max( int, int );


int main (){
	int x = 31;
	int y = 513;
	int z;

	printf("In Main:\n");

	printf("These are the ACTUAL Parameters\n");
/********************************************************
 * In the first program X was first, and Y was Second.  *
 * What happens if we do it this way?                   *
 * Will a still equal x?  Will b still equal b?         *
 * If you don't know, run this program and find out.    *
 * Make as many sample programs as it takes to convince *
 * yourself about how parameters and functions work.    *
 ********************************************************/
	printf("The first parameter = Y.");
	printf("  The value of y = %d\n", y );
	printf("The second parameter= X" );
	printf("  The value of x = %d\n\n", x );

	z = max( x, y );

	printf("Did a == x?\n");
	printf("Did b == y?\n\n");

	printf("The max of %d and %d is %d\n", x, y, z );

	return 0;
}


int max( int a, int b ){
	printf("In MAX:\n");
	printf("These are the FORMAL Parameters\n");
	printf("The first parameter = a.");
	printf("  The value of a = %d\n", a );
	printf("The second parameter= b" );
	printf("  The value of b = %d\n\n", b );

	if( a > b )
		return a;
	else
		return b;
}