Can you define which header file to include at compile time?

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Experienced faculty in C with data structures and C++ with Data Structures,Linux Admin with Advance linux concepts

Yes we can do it by using conditional comilation
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Yes. This can be done by using the #if, #else, and #endif preprocessor directives.
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Software Professional Trainer with 26+ years of Experience in Software Design and Development

No. file inclusion will happen during preprocessing stage itself. You can use #ifndef, #define preprocessor for conditional compilation.
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Programming Trainer

Header files are included only at compile time. So yes we can define which header file you want to include. Although, you cannot use them as a program statement as they're preprosessive.
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Thanks for the question...... Yes you can define it with the help of #if, #else and #endif pre-processor directive. Thanks, Team DishaaPro www.dishaapro.com
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