https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93877
--- Comment #8 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> --- The second case compiles fine with gcc-8 as well, but fails with g++-9 and g++-10.
glaubitz at physik dot fu-berlin.de Tue, 25 Feb 2020 06:20:32 -0800
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93877
--- Comment #8 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> --- The second case compiles fine with gcc-8 as well, but fails with g++-9 and g++-10.