View Source Bitwise (Elixir v1.15.5)
A set of functions that perform calculations on bits.
All bitwise functions work only on integers; otherwise an
ArithmeticError is raised. The functions band/2,
bor/2, bsl/2, and bsr/2 also have operators,
respectively: &&&/2, |||/2, <<</2, and >>>/2.
Guards
All bitwise functions can be used in guards:
iex> odd? = fn
...> int when Bitwise.band(int, 1) == 1 -> true
...> _ -> false
...> end
iex> odd?.(1)
trueAll functions in this module are inlined by the compiler.
Summary
Guards
Bitwise AND operator.
Arithmetic left bitshift operator.
Arithmetic right bitshift operator.
Calculates the bitwise AND of its arguments.
Calculates the bitwise NOT of the 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.
Bitwise OR operator.
Guards
Bitwise AND operator.
Calculates the bitwise AND of its arguments.
Allowed in guard tests. Inlined by the compiler.
Examples
iex> 9 &&& 3
1Arithmetic left bitshift operator.
Calculates the result of an arithmetic left bitshift.
Allowed in guard tests. Inlined by the compiler.
Examples
iex> 1 <<< 2
4
iex> 1 <<< -2
0
iex> -1 <<< 2
-4
iex> -1 <<< -2
-1Arithmetic right bitshift operator.
Calculates the result of an arithmetic right bitshift.
Allowed in guard tests. Inlined by the compiler.
Examples
iex> 1 >>> 2
0
iex> 1 >>> -2
4
iex> -1 >>> 2
-1
iex> -1 >>> -2
-4Calculates the bitwise AND of its arguments.
Allowed in guard tests. Inlined by the compiler.
Examples
iex> band(9, 3)
1Calculates the bitwise NOT of the argument.
Allowed in guard tests. Inlined by the compiler.
Examples
iex> bnot(2)
-3
iex> bnot(2) &&& 3
1Calculates the bitwise OR of its arguments.
Allowed in guard tests. Inlined by the compiler.
Examples
iex> bor(9, 3)
11Calculates the result of an arithmetic left bitshift.
Allowed in guard tests. Inlined by the compiler.
Examples
iex> bsl(1, 2)
4
iex> bsl(1, -2)
0
iex> bsl(-1, 2)
-4
iex> bsl(-1, -2)
-1Calculates the result of an arithmetic right bitshift.
Allowed in guard tests. Inlined by the compiler.
Examples
iex> bsr(1, 2)
0
iex> bsr(1, -2)
4
iex> bsr(-1, 2)
-1
iex> bsr(-1, -2)
-4Calculates the bitwise XOR of its arguments.
Allowed in guard tests. Inlined by the compiler.
Examples
iex> bxor(9, 3)
10Bitwise OR operator.
Calculates the bitwise OR of its arguments.
Allowed in guard tests. Inlined by the compiler.
Examples
iex> 9 ||| 3
11