Program in C to check whether the given num is Positive or negative using switch case without conditional operator

‎#include<stdio.h>

#include<conio.h>

void main(void)

{

            char num;

            clrscr();

            printf("Enter a number +ve or -ve : ");

            scanf("%c",&num);

            switch(num)

            {

                        case '-':

                                    printf("Negative number");

                        break;

                        default:

                                    printf("Positive number");

            }

            getch();

}