/*Orion Lawlor's Simple C++ Examples, olawlor@acm.org
http://charm.cs.uiuc.edu/users/olawlor/ref/examples/cpp/template_fn_evil.cpp
Shows how to use templated functions with 
specialization for an evil factorial.
*/
#include <iostream>
#include <complex>

template <int n> double fact(void) {
	return n*fact<n-1>();
}

template <> double fact<0>(void) {
	return 1;
}

int main()
{
	std::cout<<"3 factorial is "<<fact<3>()<<std::endl;
	std::cout<<"8 factorial is "<<fact<8>()<<std::endl;
	std::cout<<"14 factorial is "<<fact<14>()<<std::endl;
	return 0;
}
/*<@>
<@> ******** Program output: ********
<@> 3 factorial is 6
<@> 8 factorial is 40320
<@> 14 factorial is 8.71783e+10
<@> */