Thread: Scope of a data stucture

I'm just learning C and I can't work out how to solve this undeclared error when compiling this code. I assume it has something to do with scope. Any help / explanation would be much appreciated

C code - 47 lines - codepad

Code:

#include <stdio.h>


int main(void) {


        struct bank_account {
                int accountNumber;
                char * firstName;
                char * lastName;
                float balance;
                char * password;
        };






        struct bank_account account_123;
        account_123.accountNumber = 123;
        account_123.firstName = "Oliver";
        account_123.lastName = "Hough";
        account_123.balance = 345.69;
        account_123.password = "f4kep455w0rd";








        display_account();




        printf("\n");
        return 0;
}






int display_account(void) {


        printf("--------------------------------------------------\n");
        printf("                Bank Account Details              \n");
        printf("--------------------------------------------------\n");
        printf(" Account Number: %d\n", account_123.accountNumber);
        printf(" Initials: %c %c\n", account_123.firstName[0], account_123.lastName[0]);
        printf(" First Name: %s\n", account_123.firstName);
        printf(" Last Name: %s\n", account_123.lastName);
        printf(" Balance: €%.2f\n", account_123.balance);
        printf(" Second character of Password: %c\n", account_123.password[1]);
        printf(" Fourth character of Password: %c\n", account_123.password[3]);
        printf(" Seventh character of Password: %c\n", account_123.password[6]);


        return 0;
}

Thanks.

You need to pass your struct to your function display. Unless you create global bank accounts then you can refer to them the way you are already.

EDIT: You also should define the struct outside of main (just above it). Add a prototype to your function display_account (also just above main).