Previously this [code](https://github.com/ctlee/casc/blob/master/include/casc/SimplicialComplex.h#L1973-L2029) was noted to not compile due to [defect 727](http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#727). The defect may have a resolution at this point.