containers

问题 I want to be able to click on a container/shape and as I move the mouse a line that can be connected to another container/shape (with an arrow at one end) is drawn. Ideally I want this line to snap to the destination element. I'm new to EaselJS and I've got no clue on how to go about this. This is the closes I've come across of here, and I can't make sense out of it: Drawing a Line in a html5 canvas using EaselJS 回答1: Here is a quick demo I put together The key steps are: Listen for mousedown

问题 I am experimenting with the new docker networking feature. I migrated my old setup using container links to the new bridge network; so far, I have my dedicated bridge network up and running among multiple containers on the same host. Now I am looking for a means to replicate multiple link aliases for the same container. Say, I have a container named myBox that joins the docker network. I want to have the same container also reachable as myServer . Using links, I would simply set up two links

问题 What's the difference between supplying an STL container (for example, std::vector) with an allocator as a template parameter, eg.: std::vector<int, std::allocator<int>> some_ints; and supplying an allocator as a constructor argument, eg: std::allocator<int> temp; std::vector<int> some_ints(temp); and what are the advantages of either, given that they are not the same thing (ie. one supplies a type, the other a type instance) and can be used separately from each other? 回答1: Can be used

问题 Is it possible, to pull private images from Docker Hub to a Google Cloud Kubernetes cluster? Is this recommended, or do I need to push my private images also to Google Cloud? I read the documentation, but I found nothing that could explain me this clearly. It seems that it is possible, but I don´t know if it's recommended. 回答1: There is no restriction to use any registry you want. If you just use the image name, (e.g., image: nginx) in pod specification, the image will be pulled from public

问题 Is there any advantage to using C++11's std::find over a container's find method? In the case of std::vector (which does not have a find method) does std::find use some smart algorithm or the naive way of simply iterating over every element? In the case of std::map it seems you need to pass along an std::pair , which is the value_type of an std::map . This does not seem very useful as usually you'd want to find for either a key or a mapped element. What about other containers like std::list

问题 When compiling in a docker image (i.e. in the dockerfile), what should march and mtune be set to? Note this is not about compiling in a running container, but compiling when the container is being built (e.g. building tools from source when the image is run). For example, currently when I run docker build and install R packages from source I get loads of (could be g++/gcc/f95 ...): g++ -std=gnu++14 [...] -O3 -march=native -mtune=native -fPIC [...] If I use native in an image built by

问题 How to choose the container 960px wide and not to 1200px in Bootstrap? 回答1: Do you just want a fixed width website? If so then then just don't include bootstrap-responsive.css . The default width for a fixed width container will be 960px. Otherwise if you still want the responsive features but no 1200px container you will need to customize your bootstrap install. To do that: Go to http://twitter.github.com/bootstrap/customize.html Under the responsive section uncheck "Large desktops (>1200px)

问题 I am not able to dump STL unordered map container values in gdb. variable type is std::unordered_map<> var; my gdb version - 7.7.1 Gdb configuration: configure --host=x86_64-linux-gnu --target=x86_64-linux-gnu --with-auto-load-dir=$debugdir:$datadir/auto-load --with-auto-load-safe-path=$debugdir:$datadir/auto-load --with-expat --with-gdb-datadir=/usr/local/share/gdb (relocatable) --with-jit-reader-dir=/usr/local/lib/gdb (relocatable) --without-libunwind-ia64 --with-lzma --with-separate-debug

问题 Is it technically valid to use mismatched std::allocator specialization (surely, except its specialization for void ) as a template parameter for STL containers (not all of them, but enumerated below plus unordered_(multi)map/set)? Following code compiles fine. #include <list> #include <forward_list> #include <deque> #include <set> #include <map> int main() { struct A { bool operator < (A) const { return true; } }; struct B {}; struct C {}; std::list< A, std::allocator< C > > l; std::forward

问题 What I want to achieve: User presses the button in the ViewController then, the color of the button placed in the container view should change its color to red. How can I get access of the button placed in the container view, from the ViewController? 回答1: Step by step: Name the segue between your view controller and container view controller. Add a property to your view controller which will contain the container view controller. In your view controller implement a method prepareForSegue(_