I'm trying to make a program that initializes two numbers and states what they are. And then runs a function that sets both numbers equal to the larger of the two. And then it restates what the numbers are. The result I'm getting is this, which is wrong:

The first number is 0 and the second number is 1075052544
The first number is 0 and the second number is 1075052544

How can I get it to say this:

The first number is 5 and the second number is 10
Now, the first number is 10 and the second number is 10

#include <stdio.h>void larger_of(double * x, double * y);int main () { double a = 5; double b = 10; printf("The first number is %d and the second number is %d\n", a, b); larger_of(&a,&b); printf("Now, the first number is %d and the second number is %d\n", a, b); return 0;}void larger_of(double * x, double * y){ if (x > y) *y = *x; if (y > x) *x = *y;}

Also, in your larger_of function, you have this comparison :

>> if (x > y)

which won't work as you expect, since x and y are pointers-to-double. They're not the double values themselves, so you're basically comparing their memory addresses, rather than their values.

And this :

>> *y = *x;

will copy the double value pointed to by x to the double value pointed to by y. So, both doubles will have the same value after this. Was this intentional, or did you want to swap the values ?

Infinity, I realize that I'm bad at communicating values from a short function to the main function, and obviously you know how to do it. Could you tell me the exact code I would have to use in order to turn the first number and second number into the larger of the two numbers, to get my program to say this:

The first number is 5 and the second number is 10
Now, the first number is 10 and the second number is 10

0

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amvasquez01, you repeated exactly what I said, with the only addition being the full code - and that's in fact not allowed on this site - we're not allowed to post full-code solutions to assignments. Instead, we guide the asker to find the solution himself.

prebek, I know you already accepted his post, but please ignore it, and try to solve it yourself. It will be a better learning experience for you.

For the same reason as mentioned elsewhere, I'm gonna ask to get this question re-opened.

This tutorial is posted by Aaron Wojnowski, administrator at SDKExpert.net. To view more iPhone tutorials, visit www.sdkexpert.net.
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