C Preprocessor - C Programming MCQ Questions and Answers

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33.
What will be the output of the program?
#include<stdio.h>
#define int char 
void main()
{
      int i = 65;
      printf("sizeof(i)=%d", sizeof(i));
}

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34.
What will be the output of the following program?
#include<stdio.h>
#define square(x) x*x 
void main()
{ 
      int i; 
      i = 64/square(4); 
      printf("%d", i); 
}

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35.
What will be the output of the program code?
#include<stdio.h>
#define a 10
void main()
{
      #define a 50
      printf("%d", a);
}

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36.
Choose the correct statement.
I.   The scope of a macro definition need not be the entire program.
II.  The scope of a macro definition extends from the point of definition to the end of the file.
III. New line is a macro definition delimiter.
IV.  A macro definition may go beyond a line.

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37.
Determine output:
#include<stdio.h>
#define clrscr() 100
void main()
{
      clrscr();
      printf("%dn", clrscr());
}

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38.
What will be the output of the following program?
#include<stdio.h>
#define prod(a,b)  a*b
void main()
{
      int x=3,y=4;
      printf("%d", prod(x+2,y-1));
}

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40.
What will be output if you will compile and execute the following c code?
#include<stdio.h>
#define max 5
void main(){
    int i = 0;
    i = max++;
    printf("%d", i++);
}

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