This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 112c. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
Neither 9.2.6 [dcl.constexpr] nor 9.2.2 [dcl.stc] forbids combining the thread_local and constexpr specifiers in the declaration of a variable. Should this combination be permitted?
Rationale (January, 2014):
Such an object could have mutable subobjects. The constexpr specifier guarantees static initialization.