[Bug c++/15839] New: Requires definition of literal passed as const reference

["igodard at pacbell dot net" <gcc-bugzilla at gcc dot gnu dot org>]

Also, the linker data seems generally wrong because the file/line number in the linker message do not reference the point of problem.

The problem is at powerset.hh:685:
                return lower_bound(TypeTraits<E>::lwb);

TypeTraits<E>::lwb is a manifest constant with value 0x8000 (the smallest short), and lower_bound is declared and defined as:
    iterator    lower_bound(const key_type&) const;

The compiler should pass the constant as a temporary, and does so for other calls of lower_bound, e.g. at testPowerset.cc:230 -
            Assert(*pie.lower_bound(7) == 7);

However, in this case the generated code causes the linker to want a definition so it can build a pointer. If the problematic call is replaced with:
                  E e = TypeTraits<E>::lwb;
                  return lower_bound(e);
the linker error goes away.

I have tried to reduce the case but cannot get it to fail.


Attached are compiler output, source code, and a static library needed to link.

Ivan

-- 
           Summary: Requires definition of literal passed as const reference
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: igodard at pacbell dot net
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15839