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.]
188.8.131.52 [dcl.fct]/2 restricts the use of void as parameter type, but does not mention CV qualified versions. Since void f(volatile void) isn't a callable function anyway, 184.108.40.206 [dcl.fct] should also ban cv-qualified versions. (BTW, this follows C)
A possible resolution would be to add (cv-qualified) before void in
The parameter list (void) is equivalent to the empty parameter list. Except for this special case, void shall not be a parameter type (though types derived from void, such as void*, can).
Proposed resolution (August, 2011):
This issue is resolved by the resolution of issue 577.