Difference between cast types

Question

What exactly is the difference between these two: both are ints int x;

x(0)

and

int x = 0

Are they equivalent and if not why?

EDIT:

It's to deal with inheritance. You've got something looking like this:

class A{
protected:

int x;

public:

A() : x(0) {};
void show  {cout << "x" << x;     }



};



Class B {
protected:
int y;
public:
B()  {x = 0; y = 2; }

void show  {cout << "x" << x << "y" << y;    }


};

Is the x(0) legal? Please clarify.

I don't see any casts in here. `x(0)` isn't valid, though. – chris Dec 08 '13 at 04:23 — chris, Dec 08 '13 at 04:23
My appologize for the duplicate. Didnt see that one – Borys Ostapienko Dec 08 '13 at 04:31 — Borys Ostapienko, Dec 08 '13 at 04:31

score 1 · Accepted Answer · answered Dec 08 '13 at 04:24

1

No difference, also in C++0X: X{0}

And technically they are not cast types, they are initialization or construction.

int x = 0 will call int(0) so it is a constructor call and not assignment.

answered Dec 08 '13 at 04:24

Glenn Teitelbaum

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Difference between cast types

1 Answers1