[Bug c++/67934] [concepts] ICE when providing default function implementations using concepts

[postmaster@trippelsdorf-de.bounceio.net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67934

--- Comment #4 from postmaster@trippelsdorf-de.bounceio.net ---
Created attachment 47040
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47040&action=edit
attachment-110151-1.eml