Function - C Programming MCQ Questions and Answers

What will be the output of the following C code?

#include <stdio.h>
# define max
void m()
{
    printf("hi");
}
void main()
{
    max;
    m();
}

A) Run time error B) hi hi C) Nothing D) hi

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Answer & Solution

Answer: Option D

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What will be the output of the following C code?

#include <stdio.h>
#define foo(m, n) m ## n
int main()
{
    printf("%s\n", foo(k, l));
}

A) k l B) kl C) Compile time error D) Undefined behaviour

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Answer & Solution

Answer: Option C

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How is search done in #include and #include "somelibrary.h" according to C standard?

A) When former is used, current directory is searched and when latter is used, standard directory is searched B) When former is used, standard directory is searched and when latter is used, current directory is searched C) When former is used, search is done in implementation defined manner and when latter is used, current directory is searched D) For both, search for 'somelibrary' is done in implementation-defined places

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Answer: Option B

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