English

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Noun

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dead code (uncountable)

  1. (compilers) Instructions that, when executed, have no effect on the running of the program.
    • 2006, William Von Hagen, The definitive guide to GCC:
      Much dead code elimination is actually done on intermediate representations of your code, which may contain unnecessary intermediate calculations []
  2. (programming) A portion of source code that will never be executed as part of the running program.
    Many software projects contain much dead code in the form of deprecated functions.
    • 2003, Diomidis Spinellis, Code Reading: The Open Source Perspective, Addison-Wesley Professional, →ISBN, page 372:
      If the test data is exhaustive you can even locate dead code: program code that is never executed.

Usage notes

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  • Instructions that will never be executed may also be referred to as unreachable.

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