[Bug c++/57654] New: [c++11][constexpr] static class member reference-to-a-reference will not compile

[pebbles at riseup dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57654

            Bug ID: 57654
           Summary: [c++11][constexpr] static class member
                    reference-to-a-reference will not compile
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pebbles at riseup dot net

This simple example fails to compile with g++ development sources.

===================================================
int i;

constexpr int & iref = i;
constexpr int & irefref = iref;
// works

class A {
        static constexpr int & irefref = iref;
        //                               ^
        // error: field initializer is not constant
};
====================================================

This is similar but not the same as bug 50298 .