https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120133
mcccs at gmx dot com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mcccs at gmx dot com --- Comment #1 from mcccs at gmx dot com --- [needs-bisection] works with 9.5, fails with 10.1. -std=c++2a -fconcepts