CID 1547479: Integer handling issues (INTEGER_OVERFLOW)

[ni4]

*** CID 1547479:  Integer handling issues  (INTEGER_OVERFLOW)
/src/libsexpp/src/sexp-input.cpp: 418 in sexp::sexp_input_stream_t::scan_simple_string()()
412          * before checking the other cases, so that a token may begin with ":",
413          * which would otherwise be treated as a verbatim string missing a length.
414          */
415         if (is_token_char(next_char) && !is_dec_digit(next_char)) {
416             scan_token(ss);
417         } else {
>>>     CID 1547479:  Integer handling issues  (INTEGER_OVERFLOW)
>>>     Expression "length", which is equal to 4294967295, where "sexp::sexp_char_defs_t::is_dec_digit(this->next_char) ? this->scan_decimal_string() : 4294967295U" is known to be equal to 4294967295, overflows the type that receives it, a signed integer 32 bits wide.
418             length = is_dec_digit(next_char) ? scan_decimal_string() :
419                                                std::numeric_limits<uint32_t>::max();
420     
421             switch (next_char) {
422             case '\"':
423                 scan_quoted_string(ss, length);