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== Bit String == A **bit string** is a fundamental data type in the **Elixir** programming language. It represents a sequence of bits, which can be used to store and manipulate binary data efficiently. In Elixir, bit strings are constructed using the `<<>>` syntax, and can consist of a combination of binary values, integers, and floats. === Syntax === In Elixir, the syntax for creating a bit string is as follows: ``` <<bitstring-value :: size-unit, bitstring-value :: size-unit, ..., bitstring-value :: size-unit>> ``` Here, `bitstring-value` represents either a binary value, an integer, or a float, while `size-unit` denotes the size of each individual value. The `size-unit` can be expressed using the following formats: - `integer` - denotes the number of bits - `integer-type` - represents the size in bytes, where the type can be `u`, `s`, or `f` (unsigned, signed, or float) - `type` - specifies the size in bits, where the type can be `u`, `s`, or `f` The `bitstring-value` size can be omitted, in which case it will be inferred from the length of the value. Additionally, the `bitstring-value :: size-unit` pattern can be repeated multiple times within the `<<>>` brackets to create compound bit strings. === Examples === Below are some examples illustrating how to create and manipulate bit strings in Elixir: ```elixir <<255::8, 10::4, 3.14::32-float>> ``` ```elixir <<1::1, 0::1, 1::1, 0::1, 1::1, 0::1, 1::1, 0::1>> == <<170::8>> ``` === Bitwise Operations === Elixir provides powerful bitwise operations that can be used to manipulate bit strings. These operations include bitwise `and`, `or`, `xor`, `not`, as well as left and right shifts. === Pattern Matching === Pattern matching is a core feature of Elixir, and it can be used effectively with bit strings. This allows for convenient extraction and decomposition of binary data in a concise and readable manner. === High-Level Functions === Elixir provides a range of high-level functions and modules to work with bit strings, making it easier to perform common operations such as encoding and decoding specific data formats or protocols. === Additional Resources === For more information on bit strings in Elixir, you may find the following resources helpful: - [[Binary SyntaxGuide | Elixir Binary Syntax Guide]] - [[BitwiseOperations | Elixir Bitwise Operations]] - [[PatternMatching | Elixir Pattern Matching]] == References == {{reflist}}
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