Method Decode

cpp/src/arrow/csv/converter.cc:284–300

        type_scale_(decimal_type_.scale()) {}

  Status Decode(const uint8_t* data, uint32_t size, bool quoted, value_type* out) {
    TrimWhiteSpace(&data, &size);
    Decimal128 decimal;
    int32_t precision, scale;
    std::string_view view(reinterpret_cast<const char*>(data), size);
    RETURN_NOT_OK(Decimal128::FromString(view, &decimal, &precision, &scale));
    if (precision > type_precision_) {
      return Status::Invalid("Error converting '", view, "' to ", type_->ToString(),
                             ": precision not supported by type.");
    }
    if (scale != type_scale_) {
      ARROW_ASSIGN_OR_RAISE(*out, decimal.Rescale(scale, type_scale_));
    } else {
      *out = std::move(decimal);
    }
    return Status::OK();
  }

 protected:
  const DecimalType& decimal_type_;