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C Preprocessor | Example of using undef and pragma in C programming
Duration: 17:20 Min | Sep 07, 2023
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The #undef directive and #pragma directive are both preprocessor directives in C and C++ programming languages. They are used to control the preprocessor's behavior. The #undef directive is used to remove the definition of an identifier. This means that subsequent occurrences of the identifier will not be expanded by the preprocessor.