Method asIntegral

src/ArduinoJson/Variant/VariantData.hpp:239–281

  template <typename T>
  T asIntegral(const ResourceManager* resources) const {
    static_assert(is_integral<T>::value, "T must be an integral type");
#if ARDUINOJSON_USE_EXTENSIONS
    auto extension = getExtension(resources);
#else
    (void)resources;  // silence warning
#endif
    const char* str = nullptr;
    switch (type_) {
      case VariantType::Boolean:
        return content_.asBoolean;
      case VariantType::Uint32:
        return convertNumber<T>(content_.asUint32);
      case VariantType::Int32:
        return convertNumber<T>(content_.asInt32);
#if ARDUINOJSON_USE_LONG_LONG
      case VariantType::Uint64:
        return convertNumber<T>(extension->asUint64);
      case VariantType::Int64:
        return convertNumber<T>(extension->asInt64);
#endif
      case VariantType::TinyString:
        str = content_.asTinyString;
        break;
      case VariantType::LinkedString:
        str = content_.asLinkedString;
        break;
      case VariantType::OwnedString:
        str = content_.asOwnedString->data;
        break;
      case VariantType::Float:
        return convertNumber<T>(content_.asFloat);
#if ARDUINOJSON_USE_DOUBLE
      case VariantType::Double:
        return convertNumber<T>(extension->asDouble);
#endif
      default:
        return 0;
    }

    ARDUINOJSON_ASSERT(str != nullptr);
    return parseNumber<T>(str);
  }

  ObjectData* asObject() {
    return isObject() ? &content_.asObject : 0;