TITLE: Sizeof and references


PROBLEM: nikki@trmphrst.demon.co.uk

However, I would be extremely surprised at an implementation where the 
size of an object is LESS than the sum of the sizeof's its members.


RESPONSE: jimad@microsoft.com (Jim Adcock), 28 Jun 93

SURPRISE!

#include <iostream.h>

typedef int I100[100];

class A
{
	int a;
	double b;
	I100& c;
public:
	A(I100* i100) : c(*i100) {}
	int size() { return sizeof(*this); }
	int sumsize() { return sizeof(a) + sizeof(b) + sizeof(c); }
};

main()
{
	I100 i100;
	A a(&i100);

	cout << a.size() << ' ' << a.sumsize() << '\n';

	return 0;
}


[ Using ObjectCenter 1.0, the results are 24 and 412. -adc ]