Vidyalelo
C Programming · all questions

C Preprocessor
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

93

Questions

1/5

Page

Pick an option on a question to see the right answer and solution.

What is the purpose of the C preprocessor in C programming?

Select an option to see the answer and solution.

Which directive is used to include the contents of another file in a C program using the C preprocessor?

Select an option to see the answer and solution.

What is the purpose of the #define directive in C preprocessing?

Select an option to see the answer and solution.

In C, which directive is used to conditionally include code based on preprocessor macros?

Select an option to see the answer and solution.

What is the result of the #ifdef DEBUG directive if the DEBUG macro is defined?

Select an option to see the answer and solution.

Which directive in C preprocessing is used to define a macro with parameters?

Select an option to see the answer and solution.

In C preprocessing, what is the purpose of the #undef directive?

Select an option to see the answer and solution.

What does the #ifndef directive do in C preprocessing?

Select an option to see the answer and solution.

In C, what does the #pragma directive do in C preprocessing?

Select an option to see the answer and solution.

What is the purpose of the #include directive in C preprocessing?

Select an option to see the answer and solution.

What is the purpose of the #if directive in C preprocessing?

Select an option to see the answer and solution.

In C, how do you use the #ifdef directive to conditionally include code if a macro is defined?

Select an option to see the answer and solution.

What is the purpose of the #error directive in C preprocessing?

Select an option to see the answer and solution.

What is the result of the #ifndef DEBUG directive if the DEBUG macro is defined?

Select an option to see the answer and solution.

Which directive in C preprocessing is used to concatenate two or more strings?

Select an option to see the answer and solution.

In C, what does the #line directive do in C preprocessing?

Select an option to see the answer and solution.

What is the purpose of the #pragma once directive in C preprocessing?

Select an option to see the answer and solution.

In C preprocessing, what is the purpose of the #elif directive?

Select an option to see the answer and solution.

What is the result of the #error directive in C preprocessing?

Select an option to see the answer and solution.

What is the purpose of the #pragma message directive in C preprocessing?

Select an option to see the answer and solution.