尝试构建一个类似于iostream :: endl的流类

Question

我试图定义运算符＆lt;＆lt;在课堂上。这是一个操纵者。 endl是iostream的操纵者。我的操纵者是my_endl。

my_endl的详细信息目前非常重要，所以我把它们排除了。

class FStream {

public:
    FStream();
    ~FStream();
};


FStream::FStream() {
}


FStream::~FStream() {
}



class DerivedFStream : FStream {
public:
    DerivedFStream();
    ~DerivedFStream();
    static DerivedFStream& my_endl(DerivedFStream& dfs);
};


DerivedFStream::DerivedFStream() : FStream() {
}


DerivedFStream::~DerivedFStream() {
}

DerivedFStream& DerivedFStream::my_endl(DerivedFStream& dfs) {

return dfs;
};

int main() {
    DerivedFStream f = DerivedFStream();
    DerivedFStream& rf = f;

    rf << DerivedFStream::my_endl;

    return 0;
};

编译时我得到了

DerivedStream.cpp: In function ‘int main()’:
DerivedStream.cpp:43:8: error: no match for ‘operator<<’ (operand types are ‘DerivedFStream’ and ‘DerivedFStream&(DerivedFStream&)’)
     rf << DerivedFStream::my_endl;
        ^

我从错误信息中得到的印象是考虑变量＆＃39; rf＆＃39;成为DerivedFStream＆＃39;而不是DerivedFStream＆amp;＆＃39;。

建议请...