Question

Simple Macros In C

Include Print in the Macro Definitions

(When I try to run my solutions I get debugging errors)

Observe each of the functions below and understand their functionality. Next, convert each of the following functions to macros. Create a C file and test the macros that you have defined by writing a main function to call the functions and macros. Each macro is worth 3 points, including a main function which tests each macro is worth the remaining 3 points. Submit your program labeled as hw02q2.c [15 points] int square(int a) i return a * a; int add(int a, int b) return a + b; int min(int a, int b) if (a <b) return a; ) else t return b; void div(int a, int b) { print a/b; print NaN; if (b! e) { else

Answer 1

/*

C program that demonstrates the macros
and functions of square, add, min
and div and print results to console.*/
//hw02q2.c
//header files
#include<stdio.h>
#include<conio.h>
//Macro defintions
#define SQUARE(a) a*a
#define ADD(a,b) a+b
#define MIN(a,b) a<b?a:b
#define DIV(a,b) b!=0?printf("%d",a/b):printf("%s","NaN");

//function prototypes
int square(int a);
int add(int a,int b);
int min(int a,int b);
void div(int a,int b);

int main()
{

   int a=5;
   int b=10;

   //calling function and macros
   printf("For a=5,b=10\n ");
   printf("Calling square function ");
   printf("square of %d is %d\n",a, square(a));

   printf("Calling SQUARE macro ");
   printf("square of %d is %d\n",a,SQUARE(a));

   printf("Calling add function ");
   printf("addition of %d and %d is %d\n",a,b, add(a,b));

   printf("Calling ADD function ");
   printf("addition of %d and %d is %d\n",a,b, ADD(a,b));

   printf("Calling min function ");
   printf("minimum of %d and %d is %d\n",a,b, min(a,b));

   printf("Calling MIN function ");
   printf("minimum of %d and %d is %d\n",a,b, MIN(a,b));

   printf("Calling div function ");
   div(a,b);

   printf("Calling DIV function ");
   DIV(a,b);

   //pause program output on console
   //until user press a key on keyboard
   getch();
   return 0;
}

//square function definition
int square(int a)
{
   return a*a;
}
//addition function definition
int add(int a,int b)
{
   return a+b;
}
//minimum function definition
int min(int a,int b)
{
   if(a<b)
   {
       return a;
   }
   else
   {
       return b;
   }
}
//division function definition
void div(int a,int b)
{
   if(b!=0)
   {
       printf("%d",a/b);
   }
   else
   {
       printf("%s","NaN");
   }
}

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Sample Output screen shot:

For a-5.b-10 Calling square function square of 5 is 25 Calling SQUARE macro square of 5 is 25 Calling add function addition of 5 and 10 is 15 Calling ADD function addition of 5 and 10 is 15 Calling min function minimum of 5 and 10 is 5 Calling MIN function minimum of 5 and 10 is 5 Calling div function GCalling DIU function