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C Preprocessor - C Programming MCQ Questions and Answers

Learn competitive and Technical Aptitude C programming mcq questions and answers on C Preprocessor with easy and logical explanations. Page-10 section-1

91
Which of the following is a stringizing operator?
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Answer & Solution
Answer: Option B
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92
What will be the output of the following C code?
#include <stdio.h>
#define hello( n ) printf( "a" #n "= %d", a##n )
int a3=3;
int main()
{
    #ifdef a3
       hello(3);
   #else
       printf("sorry");
   #endif
}
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Answer & Solution
Answer: Option D
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93
What will be the output of the following C code?
#define sqr(x) x*x
main()
{
    int a1;
    a1=25/sqr(5);
    printf("%d",a1);
}
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Answer & Solution
Answer: Option A
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