//-----------------------------------------------------------------
//	tryrecur.cpp
//
//	Here is an example of mixed-language programming in which
//	the external assembly language procedure that gets called 
//	has been implemented using recursion (i.e., that function
//	will call itself).  We retained the code for a high-level
//	implementation of that function, but we commented it out.
//
//	 compile-and-link: $ g++ tryrecur.cpp fact.o -o tryrecur
//	 and execute with: $ ./tryrecur
//
//	programmer: ALLAN CRUSE
//	written on: 18 MAR 2007
//-----------------------------------------------------------------

#include <stdio.h>	// for the 'printf()' function-prototype

#define N_MAX	10	// the maximum function-argument allowed

const char  header[] = "\n   n     n!     \n";	// asciz string
const char  border[] = "------------------\n";	// asciz string

extern "C" 
int factorial( int n );
/*
{
	if ( n == 0 ) return 1;
	else	return  n * factorial( n-1 );
}
*/

int main( void )
{
	printf( "%s", header );
	printf( "%s", border );
	for (int n = 0; n <= N_MAX; n++)
		{
		int	f = factorial( n );
		printf( "  %2d     %-10d  \n", n, f );
		}
	printf( "%s", border );
}