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Magic number (programming)

In computer programming, a magic number or magic constant is a numeric literal in source code whose meaning is unclear to the reader. The term is also used outside of programming to refer to a number whose meaning is not obvious without additional knowledge — for example, some file formats are identified by an embedded magic number in the file…

Numeric literal, Format indicator & Debug value

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Explore the main themes, entities and connections around Magic number (programming). Start with the topic map, then use the sections below for research and deeper semantic analysis.

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Overview

Numeric literal

Format indicator

GUID

Debug value

Advanced semantic analysis

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Map overview Semantic statistics

Magic number (programming)

Nodes182
Edges181
Triples5
Avg. degree1.99
Density0.010989
Components1

How this topic connects Entity context

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Important terminology Word statistics

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Important terminology

magic number code files used file start header byte value example memory constant unix numbers also program values use first

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
TRUEinstance ofassigning these values to names0.80text
FALSE might be better.In Cinstance ofassigning these values to names0.80text
Cinstance ofassigning these values to names0.80text
a buffer overflow or an uninitialized variable.Famousinstance ofthe appearance of such a number in a debugger or memory dump most likely indicates an error0.80text
common examples includeinstance ofthe appearance of such a number in a debugger or memory dump most likely indicates an error0.80text

Related concept clusters Concept neighborhoods

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