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How does ## preprocessor directive work?

In which situation this is required

3rd Jul 2019, 1:50 AM
Shubhangi Shreya
3 Respostas
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## is the same as #. ## can also be used as preprocessor directive. I've encountered this in c challenges.
3rd Jul 2019, 11:25 AM
Manoj
Manoj - avatar
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The # and ## are operator use with #define macro. Usins ## concatenate what's before ## and what after it
4th Jul 2019, 7:57 AM
Shubhangi Shreya
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hi
3rd Jul 2019, 9:23 PM
Kelvin Barros