CareerCup

1)The members of a structure are public by default, the members of class are private by default.
2)Default inheritance for Structure from another structure or class is public.Default inheritance for class from another structure or class is private.
class A{
public:
int i;
};
class A2:A{
};
struct A3:A{};

struct abc{
int i;
};
struct abc2:abc{
};
class abc3:abc{};

int _tmain(int argc, _TCHAR* argv[])
{
abc2 objabc;
objabc.i = 10;

A3 ob;
ob.i = 10;

//A2 obja; //privately inherited
//obja.i = 10;

//abc3 obss;
//obss.i = 10;
}

This is on VS2005.

Only the difference is in struct all the data members are defaultly public where as in Class all are data members are private.

Well few more differences.

Classes can be inherited.
The concept of constructor/destructor is not there in structures.

Structures support constructor/destructors also...
maybe nor Template programming.

structs do not have member functions to operate on the data members