# Elixir v1.9.1 Bitwise View Source

A set of macros that perform calculations on bits.

The macros in this module come in two flavors: named or operators. For example:

`iex> ``use`` ``Bitwise``
``iex> ``bnot``(``1``)`` ``# named``
``-``2``
``iex> ``1`` ``&&&`` ``1`` ``# operator``
``1`

If you prefer to use only operators or skip them, you can pass the following options:

`:only_operators`

- includes only operators`:skip_operators`

- skips operators

For example:

`iex> ``use`` ``Bitwise``,`` ``only_operators``:`` ``true``
``iex> ``1`` ``&&&`` ``1``
``1`

When invoked with no options, `use Bitwise`

is equivalent
to `import Bitwise`

.

All bitwise macros can be used in guards:

`iex> ``use`` ``Bitwise``
``iex> ``odd?`` ``=`` ``fn``
``...> `` ``int`` ``when`` ``band``(``int``,`` ``1``)`` ``==`` ``1`` ``->`` ``true``
``...> `` ``_`` ``->`` ``false``
``...> ``end``
``iex> ``odd?``.``(``1``)``
``true`

# Link to this section Summary

## Guards

Infix operator; calculates the bitwise AND of its arguments.

Infix operator; calculates the result of an arithmetic left bitshift.

Infix operator; calculates the result of an arithmetic right bitshift.

Infix operator; calculates the bitwise XOR of its arguments.

Calculates the bitwise AND of its arguments.

Calculates the bitwise NOT of its argument.

Calculates the bitwise OR of its arguments.

Calculates the result of an arithmetic left bitshift.

Calculates the result of an arithmetic right bitshift.

Calculates the bitwise XOR of its arguments.

Infix operator; calculates the bitwise OR of its arguments.

Prefix (unary) operator; calculates the bitwise NOT of its argument.

# Link to this section Guards

Infix operator; calculates the bitwise AND of its arguments.

`iex> ``9`` ``&&&`` ``3``
``1`

Infix operator; calculates the result of an arithmetic left bitshift.

`iex> ``1`` ``<<<`` ``2``
``4``
``iex> ``1`` ``<<<`` ``-``2``
``0``
``iex> ``-``1`` ``<<<`` ``2``
``-``4``
``iex> ``-``1`` ``<<<`` ``-``2``
``-``1`

Infix operator; calculates the result of an arithmetic right bitshift.

`iex> ``1`` ``>>>`` ``2``
``0``
``iex> ``1`` ``>>>`` ``-``2``
``4``
``iex> ``-``1`` ``>>>`` ``2``
``-``1``
``iex> ``-``1`` ``>>>`` ``-``2``
``-``4`

Infix operator; calculates the bitwise XOR of its arguments.

`iex> ``9`` ``^^^`` ``3``
``10`

Calculates the bitwise AND of its arguments.

`iex> ``band``(``9``,`` ``3``)``
``1`

Calculates the bitwise NOT of its argument.

`iex> ``bnot``(``2``)``
``-``3``
``iex> ``bnot``(``2``)`` ``&&&`` ``3``
``1`

Calculates the bitwise OR of its arguments.

`iex> ``bor``(``9``,`` ``3``)``
``11`

Calculates the result of an arithmetic left bitshift.

`iex> ``bsl``(``1``,`` ``2``)``
``4``
``iex> ``bsl``(``1``,`` ``-``2``)``
``0``
``iex> ``bsl``(``-``1``,`` ``2``)``
``-``4``
``iex> ``bsl``(``-``1``,`` ``-``2``)``
``-``1`

Calculates the result of an arithmetic right bitshift.

`iex> ``bsr``(``1``,`` ``2``)``
``0``
``iex> ``bsr``(``1``,`` ``-``2``)``
``4``
``iex> ``bsr``(``-``1``,`` ``2``)``
``-``1``
``iex> ``bsr``(``-``1``,`` ``-``2``)``
``-``4`

Calculates the bitwise XOR of its arguments.

`iex> ``bxor``(``9``,`` ``3``)``
``10`

Infix operator; calculates the bitwise OR of its arguments.

`iex> ``9`` ``|||`` ``3``
``11`

Prefix (unary) operator; calculates the bitwise NOT of its argument.

`iex> ``~~~``2``
``-``3``
``iex> ``~~~``2`` ``&&&`` ``3``
``1`