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Hexspeak is a novelty form of variant English spelling using the hexadecimal digits. Created by programmers as memorable magic numbers, hexspeak words can serve as a clear and unique identifier with which to mark memory or data.
0xDEADBEEF, a hexadecimal number used in various software operating systems as a magic number DeaDBeeF , an audio player program Topics referred to by the same term
Some debuggers will automatically overwrite and destroy data that has been freed, usually with a specific pattern, such as 0xDEADBEEF (Microsoft's Visual C/C++ debugger, for example, uses 0xCC, 0xCD or 0xDD depending on what has been freed [7]). This usually prevents the data from being reused by making it useless and also very prominent (the ...
The term magic number or magic constant refers to the anti-pattern of using numbers directly in source code. This has been referred to as breaking one of the oldest rules of programming, dating back to the COBOL, FORTRAN and PL/1 manuals of the 1960s. [1]
A two-out-of-five code is a constant-weight code that provides exactly ten possible combinations of two bits, and is thus used for representing the decimal digits using five bits. [1] Each bit is assigned a weight, such that the set bits sum to the desired value, with an exception for zero. According to Federal Standard 1037C:
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In computing, decimal128 is a decimal floating-point number format that occupies 128 bits in memory. Formally introduced in IEEE 754-2008 , [ 1 ] it is intended for applications where it is necessary to emulate decimal rounding exactly, such as financial and tax computations.
If a decimal string with at most 15 significant digits is converted to the IEEE 754 double-precision format, giving a normal number, and then converted back to a decimal string with the same number of digits, the final result should match the original string.