+
+/**
+ * Returns true if a blob of text starts with a UTF-16 big or little endian byte
+ * order mark.
+ */
+bool hasUTF16ByteOrderMark(ArrayRef<char> SrcBytes);
+
+/**
+ * Converts a stream of raw bytes assumed to be UTF16 into a UTF8 std::string.
+ *
+ * \param [in] SrcBytes A buffer of what is assumed to be UTF-16 encoded text.
+ * \param [out] Out Converted UTF-8 is stored here on success.
+ * \returns true on success
+ */
+bool convertUTF16ToUTF8String(ArrayRef<char> SrcBytes, std::string &Out);
+
+/**
+ * Converts a UTF-8 string into a UTF-16 string with native endianness.
+ *
+ * \returns true on success
+ */
+bool convertUTF8ToUTF16String(StringRef SrcUTF8,
+ SmallVectorImpl<UTF16> &DstUTF16);
+
+} /* end namespace llvm */