The Big Programming Thread - Page 837

#include<sys/stat.h>
#include<unistd.h>
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<sys/errno.h>
#include<fcntl.h>
struct Test //creates a structure
{
    char name[10]; //a 10-character array
    int num1; //the first integer
    int num2; //the second integer
    int sum; //the result of the subtraction of num2 from num1
}
inst; //instance of the struct
int main() //main function
{
    printf("This program will prompt the user to input a name then two numbers.\n");
    printf("The output will be the name and the result of the first number subtracted by the second number.\n");
		struct Test; //links the struct to the main function
    printf("Enter a name (up to 10 characters): ");
		fgets(inst.name, 11, stdin); //if takes more than 10 characters, it ruins the rest of the code
    printf("Enter the first integer: "); 
		scanf("%d", &inst.num1); //scans a number
    printf("Enter the second integer: ");
		scanf("%d", &inst.num2); //scans a second number
    printf("The name is: %s", inst.name); //works correctly
        inst.sum = &inst.num1 - &inst.num2; 
    printf("The result is: %d\n", &inst.sum); //doesn't output the correct answer
}

struct Test //creates a structure
{
    char name[10]; //a 10-character array
    int num1; //the first integer
    int num2; //the second integer
    int sum; //the result of the subtraction of num2 from num1
}
inst; //instance of the struct

...

inst.sum = &inst.num1 - &inst.num2; 
printf("The result is: %d\n", &inst.sum);

printf("Enter a name (up to 10 characters): ");
		fgets(inst.name, 11, stdin);