Question

I have a defined type and created a list of this type.

Message theMessage;
std::list<Message> LM;

Now this statement

LM.push_back(theMessage);

gives me this error:

/../gcc-4.1.2/lib/gcc/i686-pc-linux-gnu/4.1.0/../../../../include/c++/4.1.0/ext/new_allocator.h:104: error: no matching function for call to ‘
SharedTypes::Message::Message(const SharedTypes::Message&)’

The constructor looks like

explicit Message(Message & aMsg)
{}

How can I fix that?

Answer 1

As was suggested constructor should be:

1. explicit Message(const Message & aMsg)

2. declared as public

If you can’t change this then consider using container of smart pointer, like std::list<std::shared_ptr<Message>>, or boost::ptr_list<Message>