C / C++ / MFC

Iain Clarke wrote:

"Ignoring guidelines since 2006" sounds like a motto on the side of a builder's van...

Iain Clarke wrote:

it may be time to retire from the C++ board for a few days...

Iain Clarke wrote:

Maybe I'll put "by special request" in my sig.

Iain Clarke wrote:

You chuckled at "Signor Pallini" before - am I wrong?

Iain Clarke wrote:

Is the CP for codeproject, and allini means something in Italian?

gReaen wrote:

Also i dont want to directly point i to j(i=j) coz it might result in memory leak.

gReaen wrote:

But it didn't work.

char i[] = "abcd";
char j[] = "ABCD";

philiptabraham wrote:

can anybody help me out

Cedric Moonen wrote:

I don't need any assistance

Iain Clarke wrote:

I knew *someone* would bite

Iain Clarke wrote:

but I assumed it would be Signor Pallini

Iain Clarke wrote:

And he's the one who gave a sensible reply!

Iain Clarke wrote:

2/ Less trivially, the first example just calls the constructor. The second example makes two objects, (obj, and a temp one), then copies temp to obj, then destroys the temp object.

#include <iostream>
using namespace std;

class MyClass
{
public:
	int _a, _b;
	MyClass(){}
	MyClass(int a, int b):_a(a), _b(b){}
	// copy constructor and assignment operator arbitrarly messed up.
	MyClass(const MyClass & proto)
	{
		_a = 0;
		_b = 0;
	} 
	MyClass & operator = (const MyClass & proto)
	{
		_a = proto._b;
		_b = proto._a;
		return *this;
	}
};


void main()
{
	MyClass my1(3,2);
	MyClass my2=MyClass(3,2);

	MyClass my3(my1);
	MyClass my4;
	my4=my1;

	cout << "my1: " << my1._a << " " << my1._b << endl;
	cout << "my2: " << my2._a << " " << my2._b << endl;
	cout << "my3: " << my3._a << " " << my3._b << endl;
	cout << "my4: " << my4._a << " " << my4._b << endl;

}
</iostream>

my1: 3 2
my2: 3 2
my3: 0 0
my4: 2 3

CMyCLass my1 = my2;

CMyClass my1(my2);

MyClass my2 = MyClass(3,2);

MyClass my2(3,2);