In a large software project, certain code needs to be compiled only for debugging purposes. How can preprocessor directives be used to achieve this?

  • By using 'ifdef' and 'ifndef'
  • By using 'for' loops
  • By using 'switch' statements
  • By using 'while' loops
Preprocessor directives like 'ifdef' and 'ifndef' can conditionally include or exclude sections of code based on predefined conditions. This is often used to include debugging code only during debugging builds. Options b, c, and d are not related to preprocessor directives.
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