Some help plz.

[wstrahan]

I'm coding a c program that will take 3 integers and print them in the original format entered then in reverse using four functions. It works to the extent that the numbers aren't printing correctly. Help would be greatly appreciated! Here's my code:

#include <stdio.h>

int getData (int* a, int* b, int* c);
int printOriginal (int* a, int* b, int* c);
int printReverse (int* a, int* b, int* c);

int getData (int* a, int* b, int* c) {
    
    printf("Enter three intergers:\n");
    scanf("%d %d %d", &a, &b, &c);
    
    return(&a, &b, &c);
    }

int printOriginal (int* a, int* b, int* c) {
    
    printf("%d %d %d\n", a, b, c);
    
    return(&a, &b, &c);
    }
    
int printReverse (int* a, int* b, int* c) {
    
    printf("%d %d %d\n", c, b, a);
    
    return(&a, &b, &c);
    }

int main (void) {
    int a;
    int b;
    int c;
    
    getData (&a, &b, &c);
    printOriginal (&a, &b, &c);
    printReverse (&a, &b, &c);

    system("pause");
    return 0;
    }

Thanks!
-Max

[AndrewHunter]

You have some knowledge misconceptions here. Read through Lesson 6 Pointers and Lesson 4 Functions. After doing that you will be able to see what you are doing wrong.

[quzah]

int getData (int* a, int* b, int* c) {
    
    printf("Enter three intergers:\n");
    scanf("%d %d %d", &a, &b, &c);
    
    return(&a, &b, &c);
    }

Turn on your compiler's warnings already. It should be screaming at you.

You already have pointers, so why are you using & in your scanf call?
You can't return multiple things.
Even if you could, you are trying to return the address of pointers, not the value of it (your return type is int).
Why do you even have this function? Just call scanf as-is.

That's as far as I got. Fix that before you start on the rest.


Quzah.

[wstrahan]

I'm suppose to have four functions: main, one to read the data, one to print the order read, and one to print them in reverse. That's why scanf has it's own function. I could easily code this program in one function, but I'm having trouble using multiple functions to accomplish something so simple in one function. Thanks for the quick responses.

[AndrewHunter]

I'm suppose to have four functions: main, one to read the data, one to print the order read, and one to print them in reverse. That's why scanf has it's own function. I could easily code this program in one function, but I'm having trouble using multiple functions to accomplish something so simple in one function. Thanks for the quick responses.

Because this assigment is suppose to teach you about pointers. Read through the links I posted and look at quzah's comments on things wrong. Then you should be able to finish this task without a problem.

[CommonTater]

I'm suppose to have four functions: main, one to read the data, one to print the order read, and one to print them in reverse. That's why scanf has it's own function. I could easily code this program in one function, but I'm having trouble using multiple functions to accomplish something so simple in one function. Thanks for the quick responses.

Even stranger... you are trying to return multiple values (which C cannot do) but your calls to the functions ignore the returns...

You are feeding pointers in the top of your functions... work with them.