https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68585
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |rejects-valid Status|UNCONFIRMED |NEW Last reconfirmed| |2015-12-01 Ever confirmed|0 |1 --- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- The code looks valid to me. Preprocessing with 4.9.3 and compiling with trunk fails, so it's a front-end regression (not something in the library). I'll try to reduce it.