Meanings
nouninclude guard (plural include guards)
plural include guards
- computingIn C and C++, a preprocessor directive used in header files to prevent them from being included multiple times.
Synonyms: header guard, macro guard
Synonyms & antonyms
nounIn C and C++, a preprocessor directive used in header files to prevent them from being included multiple times.
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Cite this entry
APA
include guard. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/include%20guard
MLA
“include guard.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/include%20guard. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “include guard,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/include%20guard.
Source: include guard on Wiktionary, CC BY-SA 4.0.