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-rw-r--r--utfebcdic.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/utfebcdic.h b/utfebcdic.h
index a6ba4fa6a3..227e0eb3db 100644
--- a/utfebcdic.h
+++ b/utfebcdic.h
@@ -268,6 +268,14 @@ explicitly forbidden, and the shortest possible encoding should always be used
* for more */
#define QUESTION_MARK_CTRL LATIN1_TO_NATIVE(0x9F)
+/* Any I8 string larger than this will overflow the word if it were converted into a UV */
+#if defined(UV_IS_QUAD)
+# define HIGHEST_REPRESENTABLE_UTF8 "\xFF\xAF\xBF\xBF\xBF\xBF\xBF\xBF\xBF\xBF\xBF\xBF\xBF\xBF"
+#else
+# define HIGHEST_REPRESENTABLE_UTF8 "\xFF\xA0\xA0\xA0\xA0\xA0\xA0\xA3\xBF\xBF\xBF\xBF\xBF\xBF"
+#endif
+
+
/*
* ex: set ts=8 sts=4 sw=4 et:
*/