[odb-users] Error in compile

[Boris Kolpackov]

Hi Nima,

nima chavooshi <nima0102 at gmail.com> writes:

> /usr/local/include/odb/database.ixx:570:54: error: no matching function for
> call to 'odb::object_traits_impl<Contact,
> (odb::database_id)0u>::find(odb::database&, const id_type&)'

If you look at the line of code that this error points to, just above
it you will see this comment:

    // Compiler error pointing here? Perhaps the object doesn't have the
    // default constructor?
    //

Looking at your Contact class, it indeed doesn't have a default
constructor. When you add it, you can make it private since you
have a friend declaration.

You can read more on this requirement in Section 3.2, "Declaring
Persistent Objects and Values" in the ODB manual.

Boris