Method isIntegral

edrav2/eprj/jsoncpp/src/lib_json/json_value.cpp:1440–1460

}

bool Value::isIntegral() const {
  switch (type_) {
  case intValue:
  case uintValue:
    return true;
  case realValue:
#if defined(JSON_HAS_INT64)
    // Note that maxUInt64 (= 2^64 - 1) is not exactly representable as a
    // double, so double(maxUInt64) will be rounded up to 2^64. Therefore we
    // require the value to be strictly less than the limit.
    return value_.real_ >= double(minInt64) &&
           value_.real_ < maxUInt64AsDouble && IsIntegral(value_.real_);
#else
    return value_.real_ >= minInt && value_.real_ <= maxUInt &&
           IsIntegral(value_.real_);
#endif // JSON_HAS_INT64
  default:
    break;
  }
  return false;
}

bool Value::isDouble() const {
  return type_ == intValue || type_ == uintValue || type_ == realValue;