This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 112e. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
[Voted into WP at March, 2010 meeting.]
Conversion of a pointer or pointer to member to bool is given special treatment as a tiebreaker in overload resolution in 184.108.40.206 [over.ics.rank] paragraph 4, bullet 1:
It would be reasonable to expect a similar provision to apply to conversions of std::nullptr_t to bool.
Proposed resolution (October, 2009):
Change 220.127.116.11 [over.ics.rank] bullet 4.1 as follows: