#undef

[hash-undef]
preprocessor directive / noun
#undef / desdefir / remover definição
1. A preprocessor directive in C and C++ programming languages that removes or undefines a previously defined macro
#undef MAX_SIZE removes the definition of the MAX_SIZE macro
#undef MAX_SIZE remove a definição da macro MAX_SIZE
2. Used in conditional compilation to stop the existence of a macro identifier
After #undef DEBUG, the DEBUG macro is no longer available for use
Após #undef DEBUG, a macro DEBUG não está mais disponível para uso
This is a technical programming term with no cultural variation. It is exclusively used in software development contexts when working with C or C++ code, and maintains identical usage across all English and Portuguese-speaking regions.
Synonyms / Sinônimos
#undefineremove macro definitionundefine directive
Antonyms / Antônimos
#definemacro definition

Regional Variations

Programming (International)
#undef
Used universally in C/C++ programming without regional variation
Brazil (Portuguese Technical)
desdefir / remover definição de macro
Technical term used in Portuguese programming documentation
Portugal (Portuguese Technical)
desdefir / remover definição de macro
Same usage as in Brazil

Related Words

#definepreprocessormacro#ifdef#endifC programming

Related Idioms & Phrases

#undef followed by macro name
conditional #undef usage
#undef within #ifdef block
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