Thread: Using Unions

I've got to write a program that will allow a user to create a contact book that holds multiple peoples' name, age, and either school name, salary, or year of retirement, depending on the age. I've got to use structures for the first two and a union for the latter. Here is a portion of my code:

Code:

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int counter = 0;

void stars(void);
void insert(void);
void show(void);

typedef union{
        char schoolName[20];
        float salary;
        int year;
} status;

typedef struct{
        char name[20];
        int age;
        status personInfo;
} info;

struct info person;

...

void insert(void)
{
        union status *q;
        q = &personInfo;
        struct info *p;
        p = person;
        char input[20];


        printf("Enter name:\n");
        scanf("%s", input);
        strcpy(person[counter].name, input);

        printf("Enter age:\n");
        scanf("%d", &person[counter].age);

        if(person[counter].age <= 21)
        {
                printf("Enter school name:\n");
                scanf("%s", input);
                strcpy(personInfo[counter].schoolName, input);
        }
        else if (person[counter].age < 65 && person[counter].age > 21)
        {
                printf("Enter salary per month:\n");
                scanf("%f", personInfo[counter].salary);
        }
        else
        {
                printf("Enter year of retirement:\n");
                scanf("%d", personInfo[counter].year);
        }

        printf("Your name, %s, and age, %d, have been added.\n", person[counter].name, person[counter].age);

        counter++;
        return;
}

It keeps telling me that 'personInfo' is undeclared in the insert function. How do I fix this?