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.
According to 9.7.1 [dcl.enum] paragraph 9, it is permitted to convert from one enumeration type to another. However, neither 22.214.171.124 [expr.static.cast] nor 7.6.3 [expr.cast] allows this conversion.
Proposed resolution (10/00): Change the first two sentences of 126.96.36.199 [expr.static.cast] paragraph 7 to read
A value of integral type can be explicitly converted to an enumeration type. The value is unchanged if the value is within the range of the enumeration values (9.7.1 [dcl.enum] ).