1 files changed, 2 insertions, 1 deletions
diff --git a/utf8.h b/utf8.h
index 419977d..8c6a7a0 100644
--- a/utf8.h
+++ b/utf8.h
@@ -53,8 +53,9 @@ utf8_decode(void *buf, uint32_t *c, int *e)
     *c >>= shiftc[len];
 
     /* Accumulate the various error conditions. */
-    *e  = (*c < mins[len]) << 6;
+    *e  = (*c < mins[len]) << 6; // non-canonical encoding
     *e |= ((*c >> 11) == 0x1b) << 7;  // surrogate half?
+    *e |= (*c > 0x10FFFF) << 8;  // out of range?
     *e |= (s[1] & 0xc0) >> 2;
     *e |= (s[2] & 0xc0) >> 4;
     *e |= (s[3]       ) >> 6;