C Preprocessor

Practice C Preprocessor – Preprocessor feature that supply line numbers and filenames to compiler is called?

Practice C Preprocessor – What will be output of the following “c” code?

#include



#define clrscr() 100 



main()



{



clrscr();



printf("%d

",clrscr());



}

Practice C Preprocessor – What is the output of the following problem ?

#define two (x) 2*x



#define ddouble (x) x + x







void main()



{



int num, sum, product;



num = 1;



sum = - two (num); sum = -(sum + 1);



product = - ddouble (num);







printf ("%d%d/n" ,sum,product);



}

Practice C Preprocessor – Consider the macro definitions

#define square (x) x*x

and #define square (x) (x*x)

when used in a program statement B=++square(C)

Practice C Preprocessor – # define max (x, y)x = (x > y)? x : y is a macro definition.

Which can find the maximum of two numbers x and y if

Practice C Preprocessor – What will be output of the following “c” code?

#include



#define  max(a,b)  (a>b)? a:b



int  main()



{



int a,b; a=3; b=4;



printf("%d",max(a,b));



return 0;



}

Practice C Preprocessor – What will be output of the following “c” code?

#include

#define a  10

void main( )

{ 

#define a 50

printf("%d",a);

}

Practice C Preprocessor – What will be output of the following “c” code?

#include



#define SQR(x) x*x



void main()



{



int a =5, b, c;



b = SQR(a++);



c = SQR(++a);



printf("%d %d", b, c);



}

Practice C Preprocessor – What will be output of the following “c” code?

#include



#define  max(a,b)  (a>b)? a:b



int  main()



{



int a,b; a=3; b=4;



printf("%d",max(a,b));



return 0;



}

Practice C Preprocessor – What will be the output of the following “C” program?

#include

#define max(a,b) (a>b?b:a)

#define squre(x) x*x

int main()

{

int i = 2, j = 3, k = 1;

printf ("%d %d", max(i,j), squre(k));

return 0;

}