Thread: Issue creating objects using composition and inheritance

Hi, I'm trying to use both composition and inheritance as part of a learning project. I have a class Vehicle which uses composition to create objects of type date and insurance as part of its type. This works up to here, but when i try to create an object of type Car which inherits from vehicle I get a double free or corruption (fasttop) error. Any direction would be appreciated.

My constructor for vehicle is as follows, works fine up to here.

Code:

Vehicle::Vehicle(const char *model, const char *brand, const char *color, const char *usageStatus,
                       int year, int totalPass, int plateNum, float dayRate, const Insurance &ins,
                       const Date &sDate):lastServiceDate(sDate), insurance(ins)

My issue is using inheritance, my constructor is as follows:

Code:

Car::Car(const char * model, const char * brand, const char * color, const char *usageStatus,
 int year, int totalPass, int plateNum, float dayRate, const Insurance &ins, const Date &sDate,bool sports,bool convertible):Vehicle(model, brand, color ,usageStatus, year, totalPass, plateNum, dayRate, ins, sDate){
 setIsSports(sports);
setIsConvertible(convertible);
}

Appreciate any guidance given.

Thanks

You should post the definitions of the Vehicle and Car classes.

Why are you not using std::string? My guess is that you have your "double free or corruption (fasttop) error" because you are fiddling around with manual memory management when you should be using string classes, containers, and smart pointers.

Originally Posted by ubmattpangolin

Are you suggesting I use string insuranceType instead of char * insuranceType ??

Yes.