http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60284
Bug ID: 60284
Summary: Default-initialization without user-provided
constructor allowed
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: potswa at mac dot com
This declaration is ill-formed according to the last sentence of [dcl.init]
ยง8.5/7, "If a program calls for the default initialization of an object of a
const-qualified type T, T shall be a class type with a user-provided default
constructor":
struct a {} const o;
There is actually a very nice diagnostic implemented by r179170 and PR42844,
but it's only activated when the class has an uninitialized member, per the
notes of CWG DR 253. However those notes aren't normative and Clang diagnoses
the error, http://stackoverflow.com/q/21900237/153285 .
