This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 110b. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
[Voted into the WP at the February, 2012 meeting; moved to DR at the October, 2012 meeting.]
The incompatibility described appears not to exist.
Proposed resolution (August, 2011):
Delete the second entry in _N4750_.C.1.3 [diff.conv], i.e., the one headed by
Change: Only pointers to non-const and non-volatile objects may be implicitly converted to void*