uni-m.cds-adv-prog/ex2.2/overloading.cpp

/*
 * Function Overloading
 *
 * generalisation of type is possible 
 * => not writing an int implementation means always use the double
 * => => even when two ints are supplied, they are generalised to doubles
 */

#include <iostream>

int min( int a, int b );
double min( double a, int b );
double min( int a, double b );
double min( double a, double b );

int min( int a[], int size);



int main() {

	const int size = 5;
	int list[size] = { 42, 37, 29, 23, 19 };

	std::cout << "min(5, 1) = " << min(5,1) << std::endl;
	std::cout << "min([42,37,29,23,19],5) = " << min(list,size) << std::endl;

	std::cout << "min( 3.12345, 3.15432 ) = " << min(3.12345, 3.15432) << std::endl;


	std::cout << "min( 3.12345, 4 ) = " << min(3.12345, 4) << std::endl;	
	std::cout << "min( 4, 3.12345 ) = " << min(4, 3.12345) << std::endl;	
	return 0;
}

int min( int a, int b ) {
	if ( a < b ) {
		return a;
	}
	return b;
}

double min( double a, int b ) {
	if ( a < b ) {
		return a;
	}
	return b;
}

double min( int a, double b ) {
	if ( a < b ) {
		return a;
	}
	return b;
}

double min( double a, double b ) {
	if ( a < b ) {
		return a;
	}
	return b;
}

int min( int a[], int size ) {
	int m = a[0];

	for( int i = 1; i < size ; ++i ) {
		m = min(a[i], m);
	}

	return m;
}

// Fix interchangeabiliy of doubles and ints