[Bug c++/33990] New: bug in lookup of member template conversion operator for pointer to member functions

["sutambe at yahoo dot com" <gcc-bugzilla at gcc dot gnu dot org>]

In the code snippet below, the comparison (nullptr == pmf) in main should
compile but on gcc it fails to compile. Compiler fails to find appropriate
conversion operator and gives error saying:
error: no match for operator== in nullptr == pmf

class nullptr_t 
{
  public:
      template<class T>
      operator T*() const // convertible to any type of null non-member
pointer...
    { return 0; }

    template<class C, class T>
    operator T C::*() const   // or any type of null member pointer...
    { return 0; }
} nullptr = {};
struct C
{
  void func ();
};
int main(void)
{
  char * ch = nullptr;
  void (C::*pmf)() = nullptr; 
  if (nullptr == ch) {}       // Compiles successfully
  if (nullptr == pmf) {}      // Should compile but does not compile on gcc
4.1.1
}


-- 
           Summary: bug in lookup of member template conversion operator for
                    pointer to member functions
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: sutambe at yahoo dot com
  GCC host triplet: Linux i686


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33990