#### Setting a bit
Use the bitwise OR operator ( | ) to set a bit.
```c
number |= 1 << x;
```
That will set bit x.

#### Clearing a bit
Use the bitwise AND operator (&) to clear a bit.
```c
number &= ~(1 << x);
```
That will clear bit x. You must invert the bit string with the bitwise NOT operator (~), then AND it.

#### Toggling a bit
The XOR operator (^) can be used to toggle a bit.  
```c
number ^= 1 << x;
```
That will toggle bit x.

### Checking a bit
To check a bit, shift the number x to the right, then bitwise AND it:
```c
bit = (number >> x) & 1;
```
That will put the value of bit x into the variable bit.

#### Changing the nth bit to x
Setting the nth bit to either 1 or 0 can be achieved with the following:
```c
number ^= (-x ^ number) & (1 << n);
```
Bit n will be set if x is 1, and cleared if x is 0.