std::int64_t ConfigManager::get_value<std::int64_t>(const Settings settings, const char* key) const { if (key != nullptr) { if (settings.HasMember(key) && settings[key].IsInt64()) { return settings[key].GetInt64(); } else throw ConfigException("Configuration Manager: Parse error."); } else { if (settings.IsInt64()) return settings.GetInt64(); else throw ConfigException("Configuration Manager: Parse error."); } }