Prime Number Function (C++)

/* And now i'll share c++ functions :

- a function to check wether a number is a prime or not

- a function to print prime numbers in a certain range

- a main function as usually c++ do */

int primecheck(int n)

{

                int i;

                for (i=2; i<n; i++)

                {

                                if (n % i == 0)

                                                return 0;

                }

                if(n>1)

                                return 1;

                else

                                return 0;

}

void primerange(int startx, int endx)

{

                int z,col;

                for(z=startx;z<=endx;z++)

                {

                                if (primecheck(z)==1)

                                {

                                                cout<<z<<"\t";

                                                col++;

                                                if(col==10)

                                                {

                                                                cout<<"\n";

                                                                col=0;

                                                }

                                }

                }

}

void main()

{

                int x;

                int startx,endx;

                cout<<"Number to test : ";

                cin>>x;

                if (primecheck(x)==1)

                                cout<<x<<" is a prime";

                else

                                cout<<x<<" isn't a prime";

                cout<<"\n\nEnter a start number of prime range : ";

                cin>>startx;

                cout<<"Enter an end number of prime range : ";

                cin>>endx;

                primerange(startx,endx);

                getch();

}

//coded by Radian Baratasena, for educational purpose only