libcpp: allow UCS_LIMIT codepoints in UTF-8 strings

Fixes r14-1954 (libcpp: reject codepoints above 0x10FFFF, 2023-06-06)

libcpp/

	* charset.cc: Allow `UCS_LIMIT` in UTF-8 strings.

Reported-by: Damien Guibouret <damien.guibouret@partition-saving.com>
Signed-off-by: Ben Boeckel <ben.boeckel@kitware.com>

diff --git a/libcpp/charset.cc b/libcpp/charset.cc
index d492f66adbc93c0ec7ff5aaff15cc5ed98c48a8f..7b625c9956a62d82efb44ecf870c5bc90f55cebb 100644 (file)
--- a/libcpp/charset.cc
+++ b/libcpp/charset.cc
@@ -1891,7 +1891,7 @@ cpp_valid_utf8_p (const char *buffer, size_t num_bytes)
         invalid because they cannot be represented in UTF-16.
 
         Reject such values.*/
-      if (cp >= UCS_LIMIT)
+      if (cp > UCS_LIMIT)
        return false;
     }
   /* No problems encountered.  */