message: hammer: fixed an error in MSVC
diff: @@ -4333,7 +4333,7 @@ template<typename IteratorType> class iteration_proxy
  }
  /// inequality operator (needed for range-based for)
  - constexpr bool operator!=(const iteration_proxy_internal& o) const
  + bool operator!=(const iteration_proxy_internal& o) const noexcept
  {
  return anchor != o.anchor;
  }
  