operator<< for managed types

[Marco Segurini]

Hi,

I like to know why the compiler returns me an error if I implement
operator<< for managed types as free function.

//--------
#include <iostream>

using namespace System;

class Test
{
};

std::ostream & operator<<(std::ostream & ostr, Test)
{
return ostr;
}

ref class TestRef
{
};

std::ostream & operator<<(std::ostream & ostr, TestRef^)
{
return ostr;
}

int main()
{
}
//--------

------ Build started: Project: operator, Configuration: Debug Win32 ------
Compiling...
operator.cpp
operator.cpp(19) : error C3281: 'operator`<<'' : global operator cannot
have managed type 'TestRef ^' in signature
Build log was saved at "file://e:\Project C++ NET
2005\Prove\operator\operator\Debug\BuildLog.htm"
operator - 1 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

//--------

Thank you very much.
Marco.

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