Using a substructure example
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/** * File: car_return.c * Author: Risto Heinsar * Created: 02.02.2015 * Modified 13.02.2024 * * Description: This is a sample code for the subject IAG0582 * Shows the use of a substructure */ #include <stdio.h> #include <string.h> #define REG_LEN 8 #define FIELD_LEN 32 typedef struct vehicle { char make[FIELD_LEN]; char model[FIELD_LEN]; } vehicle; typedef struct car_registry_entry { char regNum[REG_LEN]; char regCity[FIELD_LEN]; char owner[FIELD_LEN]; int year; vehicle car; } car_registry_entry; void PrintCar(car_registry_entry motor); void PrintCarUsingPtr(car_registry_entry *car); int main(void) { car_registry_entry indestructibleHilux; strcpy(indestructibleHilux.regNum,"E473CJN"); strcpy(indestructibleHilux.regCity,"London"); strcpy(indestructibleHilux.owner,"The Stig"); indestructibleHilux.year = 1988; strcpy(indestructibleHilux.car.make,"Toyota"); strcpy(indestructibleHilux.car.model,"Hilux"); PrintCar(indestructibleHilux); PrintCarUsingPtr(&indestructibleHilux); return 0; } /** * Description: Outputs the details of an automobile using . notation * * Parameters: motor, vehicle structure with the details of a car * * Return: none */ void PrintCar(car_registry_entry motor) { printf("%s %s, reg number %s, belongs to %s and is registered in %s\n", motor.car.make, motor.car.model, motor.regNum, motor.owner, motor.regCity); } /** * Description: Outputs the details of an automobile using -> notation * * Parameters: motor, vehicle structure with the details of a car * * Return: none */ void PrintCarUsingPtr(car_registry_entry *motor) { printf("%s %s, reg number %s, belongs to %s and is registered in %s\n", motor->car.make, motor->car.model, motor->regNum, motor->owner, motor->regCity); } |