https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101937
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2021-08-16
Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org
Status|UNCONFIRMED |ASSIGNED
Ever confirmed|0 |1
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The problem is that ctx._M_indent is a member access expression through a
reference, which is not allowed in constant expressions. This is a silly
restriction that https://wg21.link/p2280r2 aims to change.
