sysdep.h in cbor-0.5.9.1

- old
+ new

@@ -44,11 +44,11 @@
 #    define _msgpack_be16(x) ntohs(x)
 #  elif defined(_byteswap_ushort) || (defined(_MSC_VER) && _MSC_VER >= 1400)
 #    define _msgpack_be16(x) ((uint16_t)_byteswap_ushort((unsigned short)x))
 #  else
 #    define _msgpack_be16(x) ( \
-        ((((uint16_t)x) <<  8) ) | \
-        ((((uint16_t)x) >>  8) ) )
+        ((((uint16_t)x) <<  8) & 0x0000ff00U ) | \
+        ((((uint16_t)x) >>  8) & 0x000000ffU ) )
 #  endif
 #else
 #  define _msgpack_be16(x) ntohs(x)
 #endif
 