CxxUtils: Fix cppcheck 2.6 warnings.
Handle case of empty set properly in ConcurrentBitset::Impl::all().
Handle null ent pointer in safeHexdump().
Format cleanup in page_access.
Handle case of empty set properly in ConcurrentBitset::Impl::all().
Handle null ent pointer in safeHexdump().
Format cleanup in page_access.