#include <iostream>
#include <string>
using namespace::std;


extern void UserBday (int, int, int);
extern void Zodiac (int, int);
extern void main(void);


extern void main()
{
// get user name
	string UName;
		cout<<"Please enter your name: ";
	cin>> UName;
		cout<< "Hello "<< UName << "!\n";



// get user birthdate

	int m, d, y;

	{	
		cout<<"Please enter your birthdate in numerical form: "<<endl;
		cin>> m >> d >> y;
	
		UserBday ( m,d,y );
		Zodiac ( m,d );
	}	
}	

#include <iostream>
using namespace::std;

void UserBday (int m, int d, int y);



switch(m);
{
	case 1:
		if(m=1) 
		cout<<"You were born on January "<<d<< " in the year "<<y<<endl;
		break;
	case 2:
		if(m=2) 
		cout<<"You were born on February "<<d<< " in the year "<<y<<endl;
		break;
	case 3:
		if(m=3) 
		cout<<"You were born on March "<<d<< " in the year "<<y<<endl;
		break;
	case 4:
		if(m=4) 
		cout<<"You were born on April "<<d<< " in the year "<<y<<endl;
		break;
	case 5:
		if(m=5) 
		cout<<"You were born on May "<<d<< " in the year "<<y<<endl;
		break;
	case 6:
		if(m=6) 
		cout<<"You were born on June "<<d<< " in the year "<<y<<endl;
		break;
	case 7:
		if(m=7) 
		cout<<"You were born on July "<<d<< " in the year "<<y<<endl;
		break;
	case 8:
		if(m=8) 
		cout<<"You were born on August "<<d<< " in the year "<<y<<endl;
		break;
	case 9:
		if(m=9) 
		cout<<"You were born on September "<<d<< " in the year "<<y<<endl;
		break;
	case 10:
		if(m=10) 
		cout<<"You were born on October "<<d<< " in the year "<<y<<endl;
		break;
	case 11:
		if(m=11) 
		cout<<"You were born on November "<<d<< " in the year "<<y<<endl;
		break;
	case 12:
		if(m=12) 
		cout<<"You were born on December "<<d<< " in the year "<<y<<endl<<endl;
		break;
}

switch( m )
{ 
   // ....
}