~ Operator (C# Reference)
The ~ operator performs a bitwise complement operation on its operand, which has the effect of reversing each bit. Bitwise complement operators are predefined for int, uint, long, and ulong.
Remarks
User-defined types can overload the ~ operator. For more information, see operator. Operations on integral types are generally allowed on enumeration.
Example
// cs_operator_bitwise_compl.cs
using System;
class MainClass
{
static void Main()
{
int[] values = { 0, 0x111, 0xfffff, 0x8888, 0x22000022};
foreach (int v in values)
{
Console.WriteLine("~0x{0:x8} = 0x{1:x8}", v, ~v);
}
}
}
Output
~0x00000000 = 0xffffffff ~0x00000111 = 0xfffffeee ~0x000fffff = 0xfff00000 ~0x00008888 = 0xffff7777 ~0x22000022 = 0xddffffdd