[Bug c++/61080] New: Spurious no return statement warning with deleted operators

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61080

            Bug ID: 61080
           Summary: Spurious no return statement warning with deleted
                    operators
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jamborm at gcc dot gnu.org
                CC: paolo.carlini at oracle dot com

Since r210043 I'm getting the following warning which I believe is spurious:

$ ~/gcc/small/inst/bin/g++ -Wall -Werror=return-type  -fpermissive -fno-rtti
-fno-exceptions -fno-math-errno -std=gnu++0x 2.C -S

2.C: In instantiation of ‘WeakMapPtr<K, V>& WeakMapPtr<K, V>::operator=(const
WeakMapPtr<K, V>&) [with K = JSObject*; V = JSObject*]’:
2.C:32:16:   required from here
2.C:16:17: error: no return statement in function returning non-void
[-Werror=return-type]
     WeakMapPtr &operator=(const WeakMapPtr &wmp) = delete;
                 ^
cc1plus: some warnings being treated as errors

$ cat 2.C
struct AAA
{
  int a1, a2, a3;
  void *p;
};

template <typename K, typename V>
class WeakMapPtr
{
  public:
    WeakMapPtr() : ptr(nullptr) {};
    bool init(AAA *cx);
  private:
    void *ptr;
    WeakMapPtr(const WeakMapPtr &wmp) = delete;
    WeakMapPtr &operator=(const WeakMapPtr &wmp) = delete;
};

template <typename K, typename V>
bool WeakMapPtr<K, V>::init(AAA *cx)
{
    ptr = cx->p;
    return true;
}

struct JSObject
{
  int blah;
  float meh;
};

template class WeakMapPtr<JSObject*, JSObject*>;