181
google search
Google search results:
1: https://www.geeksforgeeks.org/interesting-facts-preprocessors-c/
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2: https://www.javatpoint.com/c-macros
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3: https://www.examtray.com/c-questions/c-mcq-questions-and-answers-preprocessor-directives-1
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4: https://www.programiz.com/c-programming/c-preprocessor-macros
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5: https://www.tutorialspoint.com/cprogramming/c_preprocessors.htm
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6: https://www.educba.com/macros-in-c/
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7: https://en.wikibooks.org/wiki/C_Programming/Preprocessor_directives_and_macros
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8: https://gcc.gnu.org/onlinedocs/gcc-2.95.3/cpp_1.html
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9: https://www.cs.yale.edu/homes/aspnes/pinewiki/C(2f)Macros.html
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10: https://data-flair.training/blogs/macros-in-c-programming/
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