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  2. Null-terminated string - Wikipedia

    en.wikipedia.org/wiki/Null-terminated_string

    Null-terminated strings require that the encoding does not use a zero byte (0x00) anywhere; therefore it is not possible to store every possible ASCII or UTF-8 string. [ 8 ] [ 9 ] [ 10 ] However, it is common to store the subset of ASCII or UTF-8 – every character except NUL – in null-terminated strings.

  3. Null character - Wikipedia

    en.wikipedia.org/wiki/Null_character

    The ability to represent a null character does not always mean the resulting string will be correctly interpreted, as many programs will consider the null to be the end of the string. Thus the ability to type it (in case of unchecked user input) creates a vulnerability known as null byte injection and can lead to security exploits. [10]

  4. String (computer science) - Wikipedia

    en.wikipedia.org/wiki/String_(computer_science)

    In terminated strings, the terminating code is not an allowable character in any string. Strings with length field do not have this limitation and can also store arbitrary binary data. An example of a null-terminated string stored in a 10-byte buffer, along with its ASCII (or more modern UTF-8) representation as 8-bit hexadecimal numbers is:

  5. Primitive data type - Wikipedia

    en.wikipedia.org/wiki/Primitive_data_type

    The void type and null pointer type nullptr_t in C++11 and C23; Characters and strings (see below) Tuple in Standard ML, Python, Scala, Swift, Elixir; List in Common Lisp, Python, Scheme, Haskell; Fixed-point number with a variety of precisions and a programmer-selected scale. Complex number in C99, Fortran, Common Lisp, Python, D, Go. This is ...

  6. Opaque data type - Wikipedia

    en.wikipedia.org/wiki/Opaque_data_type

    In computer science, an opaque data type is a data type whose concrete data structure is not defined in an interface.This enforces information hiding, since its values can only be manipulated by calling subroutines that have access to the missing information.

  7. Comparison of data-serialization formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_data...

    Length-prefixed "short" Strings (up to 64 bytes), marker-terminated "long" Strings and (optional) back-references Arbitrary-length heterogenous arrays with end-marker Arbitrary-length key/value pairs with end-marker Structured Data eXchange Formats (SDXF) Big-endian signed 24-bit or 32-bit integer Big-endian IEEE double

  8. Data type - Wikipedia

    en.wikipedia.org/wiki/Data_type

    The standard type hierarchy of Python 3. In computer science and computer programming, a data type (or simply type) is a collection or grouping of data values, usually specified by a set of possible values, a set of allowed operations on these values, and/or a representation of these values as machine types. [1]

  9. Comparison of Unicode encodings - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_Unicode...

    Because they contain many zero bytes, character strings representing such files cannot be manipulated by common null-terminated string handling logic. [a] The prevalence of string handling using this logic means that, even in the context of UTF-16 systems such as Windows and Java, UTF-16 text files are not