57 lines
1.0 KiB
Elixir
57 lines
1.0 KiB
Elixir
defmodule Bitwise do
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@moduledoc """
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This module provide macros for bitwise operators
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provided by Erlang. These macros can be used in guards.
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The easiest way to use is to simply import them into
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your module:
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import Bitwise
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bnot 1 # -2
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band(1, 1) #=> 1
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"""
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@doc """
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Bitwise not.
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"""
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defmacro bnot(expr) do
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quote do: __op__ :bnot, unquote(expr)
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end
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@doc """
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Bitwise and.
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"""
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defmacro band(left, right) do
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quote do: __op__ :band, unquote(left), unquote(right)
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end
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@doc """
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Bitwise or.
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"""
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defmacro bor(left, right) do
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quote do: __op__ :bor, unquote(left), unquote(right)
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end
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@doc """
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Bitwise xor.
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"""
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defmacro bxor(left, right) do
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quote do: __op__ :bxor, unquote(left), unquote(right)
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end
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@doc """
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Arithmetic bitshift left.
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"""
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defmacro bsl(left, right) do
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quote do: __op__ :bsl, unquote(left), unquote(right)
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end
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@doc """
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Arithmetic bitshift right.
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"""
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defmacro bsr(left, right) do
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quote do: __op__ :bsr, unquote(left), unquote(right)
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end
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end |