Class operator overload-CodePudding

I have a problem with return type of my class operator overload. I want to return the same object when operator does it's thing so i can continue the sequence. I have a class Console and this code:

template <class out>
Console& Console::operator<<(const out &data)
{
    std::stringstream ss;
    ss << data;
    output  = ss.str();
    return this;
}

but the error I get is

UI_Console.cpp: In member function 'vui::Console& vui::Console::operator<<(const out&)': UI_Console.cpp:13:12: error: invalid initialization of non-const reference of type 'vui::Console&' from an rvalue of type 'vui::Console*'

I can make it void but when I call an operator on object like:

Console obj;
obj << "Hello" << "World\n";

I get an error that the second operator doesn't know what to do. How can I make it work?

CodePudding user response：

You return this as a pointer. Your function declaration requires a reference, thus you need return *this;.