what is meaning of ~ operator?

[vindyusha]

what is the meaning of ~
for ex
~a=?

[weaknessforcats]

The ~ operator is overloaded. In C it is the complement operator. In C++ it is either the complement operator or it identifies a member function as a destructor.

You haven't posted enough code for me to see what you are after.

[VanessaMeacham]

Hi ! ~ it is called Complement. it is Bitwise Operator in c. The compl. operator is the text equivalent of ~. There are two ways to access the compl operator in your programs: include the header file iso646.h, or compile with /Za.

Example :

// expre_One_Complement_Operator.cpp
// compile with: /EHsc
#include <iostream>

using namespace std;

int main () {
   unsigned short y = 0xFFFF;
   cout << hex << y << endl;
   y = ~y;   // Take one's complement
   cout << hex << y << endl;
}

In my example the new value assigned to y is the one's complement of the unsigned value 0xFFFF, or 0x0000.

[simum]

This operator is also used as a destructor..
for ex:

using system
class xyz()
{
public xyz()
{
console.writeline("created");
}
[B]~xyz()[/B]
{
console.writeline("destroyed");
}
}
[B]or in other cases it can be used as a bitwise operator :)[/B]