C++ 重载/专门化最初使用模板右值引用声明的全局运算符

假设我们在库中定义了全局运算符（都在全局命名空间中）

模板
SpecialStream&运算符为什么
运算符
template< class tAnyType >
SpecialStream & operator << ( SpecialStream & os, tAnyType && value )
{
    return os.serialize( std::forward<tAnyType>( value ) );
}

SpecialStream & operator << ( SpecialStream & os, const MyClass & value )
{
    return os << value.i << value.s.c_str();
}

#include <iostream>

using namespace std;
//---------------------------------------
// Radically simplified code from a library, in global namespace 

class SpecialStream
{
public:
    template< class tAnyType >
    SpecialStream & serialize( tAnyType && value )
    {
        cout << value;  // whatever, just an example         <-- line 13
        return *this;
    }
};

// global operator that I’d like to overload/specialize for a specific class
template< class tAnyType >
SpecialStream & operator << ( SpecialStream & os, tAnyType && value )
{
    return os.serialize( forward<tAnyType>( value ) );    // <-- line 22
}
//---------------------------------------

//---------------------------------------
// code from my project 
class MyClass
{
public:
    int i;
    string s;
};

// Global operator overload/specialization (does not work! See question below)
// Tried const MyClass &, Myclass &&, MyClass
SpecialStream & operator << ( SpecialStream & os, const MyClass & value )
{
    return os << value.i << value.s.c_str();
}

int main( int argc, char ** argv )
{
    SpecialStream oss;
    MyClass     object;
    oss << object;          // compiler error!             <-- line 46
}

1>test.cpp(13): error C2679: binary '<<': no operator found which takes a right-hand operand of type 'MyClass' (or there is no acceptable conversion)

note: could be 'std::basic_ostream<char,std::char_traits<char>> &std::basic_ostream<char,std::char_traits<char>>::operator <<(std::basic_streambuf<char,std::char_traits<char>> *)'
note: or       'std::basic_ostream<char,std::char_traits<char>> &std::basic_ostream<char,std::char_traits<char>>::operator <<(const void *)'

1>  test.cpp(13): note: while trying to match the argument list '(std::ostream, MyClass)'
1>  test.cpp(22): note: see reference to function template instantiation 'SpecialStream &SpecialStream::serialize<MyClass&>(tAnyType)' being compiled
1>          with
1>          [
1>              tAnyType=MyClass &
1>          ]
1>  test.cpp(46): note: see reference to function template instantiation 'SpecialStream &operator <<<MyClass&>(SpecialStream &,tAnyType)' being compiled
1>          with
1>          [
1>              tAnyType=MyClass &
1>          ]