OVERLOAD_OF_TEMPLATE_FUNCTION.cpp

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// checking complicated partial ordering
 
 
template <class T, class U>
class S { };
 
template<class T, class U>
S<T, U>& operator<< (S<T, U> &s, T)
{
    return s;
}
 
template<class T, class U>
S<T, U>& operator<< (S<T, U> &s, char)
{
    return s;
}
 
template <class U>
S<char, U>& operator<< (S<char, U> &s, char)
{
    return s;
}
 
template <class U>
S<int, U>& operator<< (S<int, U> &s, int)
{
    return s;
}
 
void foo ()
{
    S<char, int> sci;
    S<int, int>  sii;
 
    sci << 'a';
    sii << 1;
}