P175. Design a calculator with command line arguments.

 

#include<stdio.h>

#include<stdlib.h>

void main(int argc,char **argv)

{

        if(argc!=4)

                printf("Enter valid arguments");

        int n1,n2;

        n1=atoi(argv[1]);

        n2=atoi(argv[3]);

 

 

        switch(argv[2][0])

        {

                case '+' : printf(" Sum = %d",n1+n2);

                           break;

                case '-' : printf(" Sub = %d",n1-n2);

                           break;

                case '*' : printf(" Mul = %d",n1*n2);

                           break;

                case '/' : printf(" Div = %d",n1/n2);

                           break;

        }

 

}