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Preprocessor directive #undef can be used only on a macro that has been #define earlier ?->(Show Answer!)
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1. Preprocessor directive #undef can be used only on a macro that has been #define earlier



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  • By: guest on 01 Jun 2017 06.00 pm
    True, #undef can be used only on a macro that has been #define earlier Example: #define PI 3.14 We can undefine PI macro by #undef PI
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