biggest.c

C源码集

#include <stdio.h>

int *biggest_of_two(int*, int*);
int *biggest_of_three(int*, int*, int*);

int main ()
{
	int a = 123, b = -78, c = 999;
	int *one, *two;

	one = biggest_of_two(&a, &b);
	two = biggest_of_three(&a, &b, &c);

	printf("Biggest of %i and %i  is %i\n", a, b, *one);
	printf("Biggest of %i, %i and %i is %i\n", a, b, c, *two);

	return 0;
}

int *biggest_of_two (int *i, int *j)
{
	return (*i > *j) ? i : j;
	/* Test if what i points to is larger than what j points to.
		if so, return i, if not, return j */
}

int *biggest_of_three (int *i, int *j, int *k)
{
	int *first = biggest_of_two(i, j);
	int *second = biggest_of_two(j, k);

	return  biggest_of_two(first, second);
}