...from C++20, and is no longer provided at least by VS 2019 16.6.4 when using
--with-latest-c++
Change-Id: I1812b4c314febe134a299e42362ca50b495f08d9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/99081
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>