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Include guard

In the C and C++ programming languages, an .mw-parser-output .monospaced{font-family:monospace,monospace}#include guard, sometimes called a macro guard, header guard or file guard, is a way to avoid the problem of double inclusion when dealing with the include directive.

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Use of #include guards

6 related topics

Overview

12 related topics

Other languages

2 related topics

Example

1 related topics

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Overview

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Use of #include guards

Difficulties

Other languages

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Include guard

Nodes28
Edges27
Triples16
Avg. degree1.93
Density0.071429
Components1

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Include guard

Top relations

related to Other languages · 10
Include guard → C's, C/C, IBM Enterprise PL/I, INCLUDEstatement, It, Objective-C's, PHP', PL/I, Some, XINCLUDEstatement
related to Difficulties · 4
Include guard → For, The Objective-C, Therefore, This
related to External links · 2
Include guard → Include, Include Guards

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Important terminology

file includeguards code included header preprocessor include macro one definition inclusion time translation unit grandparent guard includes pragma called directive

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Include guardrelated to DifficultiesFor0.60section
Include guardrelated to DifficultiesTherefore0.60section
Include guardrelated to DifficultiesThis0.60section
Include guardrelated to DifficultiesThe Objective-C0.60section
Include guardrelated to External linksInclude0.60section
Include guardrelated to External linksInclude Guards0.60section
Include guardrelated to Other languagesSome0.60section
Include guardrelated to Other languagesC/C0.60section
Include guardrelated to Other languagesPL/I0.60section
Include guardrelated to Other languagesINCLUDEstatement0.60section
Include guardrelated to Other languagesC's0.60section
Include guardrelated to Other languagesIBM Enterprise PL/I0.60section

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