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[Bug c++/78615] error: cannot decrement a pointer to incomplete type
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 30 Nov 2016 15:52:10 +0000
- Subject: [Bug c++/78615] error: cannot decrement a pointer to incomplete type
- Auto-submitted: auto-generated
- References: <bug-78615-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78615
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I don't think this is valid code and here is why:
struct QListNode is incomplete.
You use an instantiation of QList<int> via class B which means all methods of
QList<int> are instantiated.