containers

问题 Is there any std container which would be fixed size like std::array, but the size would not be compile time, but runtime? I want to pass a part of some data I have stored in std::array to std::acculumate and similar functions. I do not want to use std::vector (working on embedded platform), therefore I am looking for something in between. Assume code like this, what I want is something to be used in place of array_part : #include <array> #include <algorithm> #include <iostream> #include

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed last year . I have 2 docker containers running (A and B). Have a need to call from within container A -> a bash command inside container B. How to achieve this? 回答1: If your B container looks something like this: docker run -d --name b_container --rm ubuntu:latest sleep 50000 and your A

问题 In .net core 2.2 when i containerize the app i get a Bearer error="invalid_token", error_description="The signature is invalid" It is working fine when i host it on windows using IIS/IIS express. My code -- The token generator is IBM API Connect it uses RSA 256 Algorithm to generate the key var rsa = new RSACryptoServiceProvider(); string exponentvalue = "AQAB"; var e = Base64UrlEncoder.DecodeBytes(exponentvalue); var N = "public key put your value here" var modulus = Base64UrlEncoder

问题 Say I have two different objects that are completely different, Sprite and PhysicsData. I write an empty base class and a container class that can push and remove objects to/from a container. I create two of these containers to store the two different objects - Sprite and PhysicsData. (Different objects aren't together in the same class) class base { }; class ContainerManager { public: std::vector<base*> list; void Push(base *object); void Remove(base *object); }; class PhysicsData : public

问题 I've created a container within my Footer with three columns. When re-sized to below 600px, the Divs display on top of each other. I'd like for the content to be displayed one after another? Here is the code: HTML: <footer> <div class="footwrap"> <div class="footleft"> <h2>Far East Festival Ltd</br></h2> <div class="subhead"> Registered Address: </br></div> 3 Bina Court, </br> 2 Rickmansworth Road, Northwood,<br> London, United Kingdom <br> HA61HA</br> <div class="subhead">Tel:<br></div> (+44

问题 This question already has answers here : List of lists changes reflected across sublists unexpectedly (13 answers) Closed 4 years ago . I'm new with Python and for some needs I am trying to figure out how to work with list of lists of lists. Here's what am I doing: segment_coef = [[list()]*4]*17 print segment_coef segment_coef[0][0].append(1) segment_coef[1][0].append(2) segment_coef[2][0].append(3) print segment_coef After first print I have : [ [ [],[],[],[] ] , ... 14 more time ... , [ [],

问题 I have a docker container running where I a have mapped 8090 port of host to 8080 port of docker container (running a tomcat server). Is there any way by which I can get the mapped port information from container? i.e. is there any way by which I can get to know about 8090:8080 mapping from container? 回答1: When you link containers, docker sets environment variables which you can use inside one docker to tell how you can communicate with another docker. You can manually do something similar to

问题 I am trying to throttle the disk I/O of a Docker container using the blkio controller (without destroying the container), but I am unsure how to find out which device to run the throttling on. The Docker container is running Mongo. Running a df -h inside the bash of the container gives the following: root@82e7bdc56db0:/# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/docker-202:1-524400-916a3c171357c4f0349e0145e34e7faf60720c66f9a68badcc09d05397190c64 10G 379M 9.7G 4% / tmpfs 1

问题 I've met a big problem about the network configuration in docker. The senario is this: 1.I have two eth on my serve : eth0 and eth1: eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 172.17.198.172 netmask 255.255.255.0 broadcast 172.17.198.255 inet6 fe80::250:56ff:fea8:233f prefixlen 64 scopeid 0x20 ether 00:50:56:a8:23:3f txqueuelen 1000 (Ethernet) RX packets 5415657 bytes 2659904664 (2.4 GiB) RX errors 0 dropped 78 overruns 0 frame 0 TX packets 935762 bytes 1824232555 (1.6 GiB

问题 I'd like clarification on the C++ standard, specifically where it says (my interpretation) in section 20.1.3 that "for class T and an instance of class T called x, T(x) must be equivalent to x" for the class to work with standard containers. I couldn't find a definition of 'equivalent'. Does this mean that I have to define operator== as a member of my class, so that T(x) == x returns true? 回答1: Equivalent is purposefully vague. (To avoid things like implying operator== must be defined; it