Lab #6/7 [1]

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

#define ADDRESS_ELLEMENT_SIZE 30
#define POINTER_ARRAY_SIZE 50

struct addressInfo
{
    char name[ADDRESS_ELLEMENT_SIZE];
    char street[ADDRESS_ELLEMENT_SIZE];
    char cityAndState[ADDRESS_ELLEMENT_SIZE];
    int zipcode;
};

typedef struct addressInfo address;

int InputData(address *dataArray[]);
void OutputData(address *dataArray[], int structCount);
int CompareAddressZipcode(const void *struct1, const void *struct2);

int main()
{
    address *pAddressArray[POINTER_ARRAY_SIZE];
    int addressCount;

    addressCount = InputData(pAddressArray);

    qsort(pAddressArray, addressCount, sizeof(address), CompareAddressZipcode);

    OutputData(pAddressArray, addressCount);

    return 0;
}

int InputData(address *dataArray[])
{
    int i;

    for (i = 0; getchar() != EOF && i < POINTER_ARRAY_SIZE; i++)
    {
        dataArray[i] = (address *)malloc(sizeof(address));

        fgets(dataArray[i]->name, ADDRESS_ELLEMENT_SIZE, stdin);
        fgets(dataArray[i]->street, ADDRESS_ELLEMENT_SIZE, stdin);
        fgets(dataArray[i]->cityAndState, ADDRESS_ELLEMENT_SIZE, stdin);
        scanf("%d", &dataArray[i]->zipcode);
    }

    return --i;
}

void OutputData(address *dataArray[], int structCount)
{
    for (int i = 0; i < structCount; i++)
    {
        puts(dataArray[i]->name);
        puts(dataArray[i]->street);
        puts(dataArray[i]->cityAndState);
        printf("%d", dataArray[i]->zipcode);

        free((void *)dataArray[i]);
    }
}

int CompareAddressZipcode(const void *struct1, const void *struct2)
{
    const address *pStruct1 = (address *)struct1;
    const address *pStruct2 = (address *)struct2;

    return pStruct1->zipcode - pStruct2->zipcode;
}