/// the constructor, so it makes sense to create as few UnicodeCharSet
/// instances per each array of ranges, as possible.
#ifdef NDEBUG
+
+ // FIXME: This could use constexpr + static_assert. This way we
+ // may get rid of NDEBUG in this header. Unfortunately there are some
+ // problems to get this working with MSVC 2013. Change this when
+ // the support for MSVC 2013 is dropped.
LLVM_CONSTEXPR UnicodeCharSet(CharRanges Ranges) : Ranges(Ranges) {}
#else
UnicodeCharSet(CharRanges Ranges) : Ranges(Ranges) {