🌐EnglishEnglishEspañolFrançaisPolskiPortuguêsРусскийالعربيةفارسی中文EntityQ307472· pop 11· linked from 9 articles#pragma onceAlso known as pragma oncedirective in C and C++ provided as a language extensionAvailable in 11 languagesEspañolFrançais中文РусскийPortuguêsBulgarianCatalanPolskiUkrainianفارسیvia Wikidata sitelinks · CC0ConnectionsQ15777EntityQ2407EntityCategoriesC++C (programming language) headersRestricted titles (leading number sign)