OUStringLiteral should be declared constexpr, to enforce that it is initialised at compile-time and not runtime. This seems to make a different at least on Visual Studio Change-Id: I1698f5fa22ddb480347c2f4d444530c2e0e88d92 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/153499 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>