xcode - “attempt to use a deleted function” - what does that mean?

Question

I am writing a C++ library in Xcode 4.2

One of my classes won\'t compile with this error : \"attempt to use a deleted function\".

There is no specific indica

Answer 1

In C++11 you can declare functions as deleted:

struct Foo {
    Foo(const Foo &) = delete;
};

Attempting to use such a function is an error. The purpose of doing this is so that, in this example, copy construction of this type is not possible. This is a more direct replacement for the non-copyable trick used pre-C++11.

Also, there are rules in the C++ spec that lead to member functions being implicitly deleted.

The error is telling you that your program attempts to use a deleted function. You'll have to post the error you're getting for more detailed help.