postfix and prefix

[puzzlecracker]

How can we implement operator ++ as postfix in prefix?

thanks

 

[zacks]

How can we implement operator ++ as postfix in prefix?

thanks

Not really sure what you are asking, but the ++ operator can be
applied in front of a variable or behind it. If in front, the value is
incremented before the value is "looked at". If after, the value isn't
incremented until after it is "looked at".

 

[Arto Viitanen]

puzzlecracker kirjoitti:

How can we implement operator ++ as postfix in prefix?

thanks

In C

int a=10;
printf("%d\n", ++a);

prints 11 and

int a=10;
printf("%d\n",a++);

prints 10

(and on both cases, a is 11 after the code).

The first ++ is called prefix and the second postfix.

On C++ if you like to add ++ to your own classes, you have to implement
separate operators for postfix and prefix ++ operators. However, this
article : http://devhawk.net/2003/07/10/Operator+Overloading+In+C.aspx
claims that for C# you have to implement only one operator, the compiler
handles the difference.