http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48530
Summary: [C++0x][SFINAE] Hard errors with deleted d'tors
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: daniel.krueg...@googlemail.com
CC: ja...@redhat.com
The following program in C++0x mode is not well-formed, but should be:
template<class T,
class = decltype(T())
>
char f(int);
template<class>
char (&f(...))[2];
struct DelDtor {
~DelDtor() = delete;
};
static_assert(sizeof(f<DelDtor>(0)) != 1, "Error");
"error: use of deleted function ‘DelDtor::~DelDtor()’"
Note: This should be a case where the revised decltype rules in regard to
complete types would not apply, so it should be well-formed even after
implementing this new rule.
