------- Comment #14 from manu at gcc dot gnu dot org 2010-06-26 10:53 ------- > (In reply to comment #12) > > So is g++ accepting invalid code? > > Yes, but it's a violation of the ODR, no diagnostic is required (it's not > possible to tell until link time that there's no definition.) > > There are DOZENS of duplicates of this bug, they are all invalid.
However, it links in the if-else case. I understand that ?: may be used as a lvalue, but in this case, it is not and the value may be inlined in the same way as in if-else (I guess that is what Andrew's patch did). If the standard is clear that this should not work, then so be it. Let's close this as INVALID, because I don't know how we could improve the diagnostics here to help users. I wish we could but I cannot see how it can be done. I guess that would require an integrated super-smart linker, I wonder if the LLVM project is going to suggest that next? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44673
