[Bug c++/30975] New: ptr to member func __delta is 0 if ptr declaration does not match function porototype

["ingo dot donasch at L-3com dot com" <gcc-bugzilla at gcc dot gnu dot org>]

if a ptr to member function declaration differs from the prototype of the
actual function being used, and the function is implemented in a subclass, and
inherits from multiple base classes, the 4.x compiler generates a 0 for the
__delta which cause the appl to crash when the function is called through the
pointer with a wrong this ptr (pointing to the baseclass offset instead of the
objects).
problem was introduced with g++4.x, tested ok with g++3.4.


-- 
           Summary: ptr to member func __delta is 0 if ptr declaration does
                    not match function porototype
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ingo dot donasch at L-3com dot com
 GCC build triplet: Red Hat 4.1.1-51
  GCC host triplet: i386-redhat-linux
GCC target triplet: i386-redhat-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30975