Mega Code Archive
Cast generic parameters
<![CDATA[
#include <iostream>
using namespace std;
template <class T1, class T2>
bool coerce(T1& x, T2 y)
{
if (sizeof(x) < sizeof(y))
return false;
x = static_cast<T1>(y);
return true;
}
int main()
{
int i, j;
float x;
double y;
char ch1;
i = 'a'; ch1 = 'b';
cout << "\ncoerce int, ch = ";
cout << coerce(i, ch1);
cout << " i = " << i << " ch1 = " << ch1;
i = 'a'; ch1 = 'b';
cout << "\ncoerce ch, int = ";
cout << coerce(ch1, i);
cout << " i = " << i << " ch1 = " << ch1;
x = 1.1; y = 2.2;
cout << "\ncoerce fl, dbl = ";
cout << coerce(x, y);
cout << " x = " << x << " y = " << y;
x = 1.1; y = 2.2;
cout << "\ncoerce dbl, fl = ";
cout << coerce(y, x);
cout << " x = " << x << " y = " << y;
cout << endl; cin>> i;
}
]]>