containers

问题 Given any character, what's the fastest way for me to determine if that character belongs to a set (not the container-type) of known characters. In other words, what's the fastest elegant way to implement the conditional: char c = 'a'; if(c == ch1 || c == ch2 || c == ch3 ...) // Do something... Is there an STL container (I'm thinking it might be unordered_set?) that I can just pass the character as a key to and it'll return true if the key exists? Anything with an O(1) lookup time will work

问题 I've created two pods top of Azure Kubernetes cluster 1) Application 2) MS SQL server both pods are exposed via Azure Loadbalancer and both having External IPs. I am unable to use the External IP in my application config file. But I can connect that SQL Server from anywhere. For some reason I am unable to telnet DB IP from Application container. the connection is getting timeout. but I can ping/telnet the DB's cluster ip. So I have tried to use the DB cluster IP in my config file to check if

问题 Is there a way to store void functions with different parameters in a vector? The number of parameters is always one, only the type differs. The parameter type can be a default type like int , a pointer to my own object like example* or any other type. What I do for now is using a vector of functions with a void pointer as parameter. So I can pass everything. But I want to get rid of the back casting in all the functions. unordered_map<string, function<void(void*)> > List; void Callback

问题 I need a bidirectional container with non-unique keys or values. multimap doesn't work, because it's unidirectional and boost>::bimap only allows unique keys and values. Any such container in the standard or boost libs? Otherwise: any pointers/articles to implement such a structure would be appreciated. Only up to 100 or so element-pairs are expected. Any help appreciated, thanks, Jeanette 回答1: Actually boost::bimap does allow non-unique keys: http://www.boost.org/doc/libs/release/libs/bimap

问题 I need a bidirectional container with non-unique keys or values. multimap doesn't work, because it's unidirectional and boost>::bimap only allows unique keys and values. Any such container in the standard or boost libs? Otherwise: any pointers/articles to implement such a structure would be appreciated. Only up to 100 or so element-pairs are expected. Any help appreciated, thanks, Jeanette 回答1: Actually boost::bimap does allow non-unique keys: http://www.boost.org/doc/libs/release/libs/bimap

问题 Strange problem, I have controller which uses \Symfony\Component\DependencyInjection\ContainerAwareTrait class MainController { use \Symfony\Component\DependencyInjection\ContainerAwareTrait; /** * @Route("/", name="_index") * @Template() */ public function indexAction() { var_dump($this->container); return array(); } } but result is NULL. Tried on: Symfony 2.5.* MAMP 3.0 PHP 5.4 5.5 My searches have not helped me. I think the solution is easy. Any ideas how to trace this error? UPD: When i

问题 I'm using this two classes // This is generic data structure containing some binary data class A { public: A(); A(const A&); ~A(); } // Main data container class B { public: B(); B( const B&); ~B(); protected: std::vector<A *> data; } // Copy constructor for class b B::B( const B& orig):data() { for( std::vector<A *>::const_iterator it = orig.data.begin(); it < orig.data.end(); ++it){ data.push_back( new A( *(*it))); } } I guess this class would do it job, but I'm finding to way how to reach

问题 I have a container1 running a service1 on port1 also I have a container2 running a service2 on port2 How can I access service2:port2 from service1:port1? I mention that the container are linked together. I ask if there is a way to do it without accessing the docker0 IP (where the port is visible) thanks 回答1: The preferred solution is to place both containers on the same network, use the build-in dns discovery to reach the other node by name, and you'll be able to access them by the container

问题 This might be a general question, but I can't seem to figure it out. What are containers in DNN? Skins are essentially a layout plus a colour scheme for the whole portal. So are containers the skin for desktopmodules? Sorry if this question is novice. I am not confident in DNN yet, and am reading the doco. However i need this answer quite quickly. Cheers. 回答1: Containers allow you to add style and markup to any module independently of the page skin or the particular module. The layout goes

问题 I am trying to attach to a running container in Kubernetes, however I get the error message below. >kubectl attach -it es-client-2756725635-4rk43 -c es-node Unable to use a TTY - container es-node did not allocate one If you don't see a command prompt, try pressing enter. How do I enable a TTY in my container yaml? 回答1: In order to have proper TTY and stdin when doing attach: kubectl attach -it POD -c CONTAINER The container must be configured with tty: true and stdin: true . By default both