# BitNot

## BitNot(x)

Returns the bitwise one's complement of the integer portion of a number. Each 1 bit in «x» is changed to 0, and each 0 bit changed to «1».

Each integer is treated as having 64 bits. The two's complement binary representation is used for negative numbers.

This will generally be equivalent to `-(x + 1)`

when «x» is an integer, but if you are manipulating the bits of an integer, the use of this function makes your intent more obvious.

## Examples

`BitNot(55) → -56`

The same example shown in binary notation makes the bit inversion obvious

`BitNot(0b110111) → 0b1111111111111111111111111111111111111111111111111111111111001000`

## History

Introduced in Analytica 5.0.

## See Also

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