containers

vector string push_back is not working in c++

跟風遠走 提交于 2019-12-02 11:37:28
This code snippet receives string, delimiter(space) and vector as argument and splits the string according to delimiter and stores it in vector. It is not storing anything into vector if i use push_back but works if i use [] operator. Can someone explain why push_back is not working? void split(const string & input,char delim,vector<string> & elems){ stringstream ss; ss.str(input); string item; int i = 0; while(getline(ss,item,delim)){ //elems.push_back(item); elems[i] = item; i++; } } int main(){ char delim = ' '; vector<string> item(2); string input; getline(cin,input); split(input,delim

3 Div boxes do not fit in the container

耗尽温柔 提交于 2019-12-02 11:02:44
On the Page: jerkydirect.com/base/opportunity - There are 3 boxes within the container with the picture. However, when viewed on a Large Screen - the last box sticks over the right side. It looks great in a smaller window or mobile but not on a larger screen. How do i get this to align correctly? Here is the code: <section class="plan-box opportunity"> <div class="container"> <div class="row"> <h2>Choose Your Crave:</h2> <div class="col-xs-12 col-sm-12 col-md-12"> <center> <div class="package"> <h3>Twin Pack</h3> <p>2 BAGS</p> <ul> <li><span>Affiliate Price: </span><span>$19.75</span></li> <li

How to inspect a container's IP, obtain it and add it to /etc/hosts file with a local domain name resolution

心已入冬 提交于 2019-12-02 10:46:23
I am working on Linux Ubuntu with docker containers and I want the following added to the last line of /etc/hosts in a new line: IP_from_docker_container hostname_assigned 172.20.1.2 docker.dev.example.com I have been trying commands such as: echo, printf, aux, sed, tee This is what i unsuccessfully tried: echo "\n" | docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' CONTAINER | echo " docker.dev.whip-around.com" | sudo tee -a /etc/hosts Command to get container's IP works fine. I put it here as a reference only: docker inspect -f '{{range.NetworkSettings.Networks}}{

Container-VM Image with GPD Volumes fails with “Failed to get GCE Cloud Provider. plugin.host.GetCloudProvider returned <nil> instead”

霸气de小男生 提交于 2019-12-02 10:31:59
I currently try to switch from the "Container-Optimized Google Compute Engine Images" ( https://cloud.google.com/compute/docs/containers/container_vms ) to the "Container-VM" Image ( https://cloud.google.com/compute/docs/containers/vm-image/#overview ). In my containers.yaml, I define a volume and a container using the volume. apiVersion: v1 kind: Pod metadata: name: workhorse spec: containers: - name: postgres image: postgres:9.5 imagePullPolicy: Always volumeMounts: - name: postgres-storage mountPath: /var/lib/postgresql/data volumes: - name: postgres-storage gcePersistentDisk: pdName: disk

Can containers share a framework?

橙三吉。 提交于 2019-12-02 09:53:30
I'm aware that Docker containers can share a data volume but is it possible for them to share frameworks? For instance, if i have two .NET services running on IIS can I just share the framework between them? Yes you can, what you usually do is Alternative A: create a busybox image and COPY your framework, expose the location as a volume VOLUME /opt/framework/ FROM alpine COPY framework /opt/framework VOLUME /opt/framework COPY busyscript.sh /usr/local/bin/busyscript RUN chmod +x /usr/local/bin/busyscript CMD ["busyscript"] While the busyscript.sh looks like #!/bin/sh #set -x pid=0 # SIGTERM

Bootstrap 4 container fluid unwanted margins [duplicate]

我怕爱的太早我们不能终老 提交于 2019-12-02 08:11:53
This question already has an answer here: Bootstrap 4 correct way to use row and col classes [duplicate] 1 answer Bootstrap - do we have to use rows and columns? 2 answers I'm writing a page in html using Bootstrap 4.2. I would like to have a horizontal navigation bar at the top of the page, that occupies the whole width of the page, and remains static during navigation. I tried to use a few divs with the class "container-fluid". The problem is that a margin appears on the left and right side of the bar Here is an example of what I get in jsfiddle <div class="container-fluid"> <div class=

Kubernetes can't start due to too many open files in system

陌路散爱 提交于 2019-12-02 07:47:59
I am trying create a bunch of pods, services and deployment using Kubernetes, but keep hitting the following errors when I run the kubectl describe command. for "POD" with RunContainerError: "runContainer: API error (500): Cannot start container bbdb58770a848733bf7130b1b230d809fcec3062b2b16748c5e4a8b12cc0533a: [8] System error: too many open files in system\n" I have already terminated all pods and try restarting the machine, but it doesn't solve the issue. I am not an Linux expert, so I am just wondering how shall find all the open files and close them? You can confirm which process is

How can I define operators so that a array of user-defined types can be transformed into an array of primitive types?

那年仲夏 提交于 2019-12-02 07:23:26
问题 I give the following code to illustrate my question: #include <vector> struct Complex { int a, b, c; Complex() : a(3), b(4), c(10) {} operator int() const { return a+b+c; } }; int main() { Complex abc; int value = (abc); Complex def; def.a = 20; int value2 = (def); std::vector<Complex> ar; ar.push_back(abc); ar.push_back(def); std::vector<int> ar2; ar2.push_back(abc); ar2.push_back(def); std::vector<int> ar3; ar3 = (ar); } This won't compile, due to the expression ar3 = (ar) . I have declared

C++ multi-dimensional data handling

丶灬走出姿态 提交于 2019-12-02 07:16:03
Many times, I find myself having to define a container for multi-dimensional data. Let's take an example: I have many Chips, each Chip has many Registers, each Register has many Cells, and each Cell has many Transistors. At some stage of my C++ program I have to read this data, and later I have to use it. I cannot use any external storage for this data: file, data-base, etc. So, should I create some multi-dimensional STL container? A map of maps of vectors, or something like that... ? Or should I create classes (structs) for each of them? Cell class that contains a vector of Transistors, and

How to create a container that holds different types of function pointers in C++?

你离开我真会死。 提交于 2019-12-02 07:07:48
问题 I'm doing a linear genetic programming project, where programs are bred and evolved by means of natural evolution mechanisms. Their "DNA" is basically a container (I've used arrays and vectors successfully) which contain function pointers to a set of functions available. Now, for simple problems, such as mathematical problems, I could use one type-defined function pointer which could point to functions that all return a double and all take as parameters two doubles. Unfortunately this is not