containers

I want to define a global container (C++03), and here's an example code I tried, which does not work. #include <vector> #include <string> using namespace std; vector<string> Aries; Aries.push_back("Taurus"); // line 6 int main() {} Compile error: prog.cpp:6:1: error: 'Aries' does not name a type It seems I can define an empty global vector, but cannot fill it up. Looks like in C++03, I cannot specify an initializer either, such as: vector<string> Aries = { "Taurus" }; Have I made a mistake here, or how do I get around this problem? I tried searching on StackOverflow to see if this has been

I am used to that Python allows some neat tricks to delegate functionality to other objects. One example is delegation to contained objects. But it seams, that I don't have luck, when I want to delegate __contains __: class A(object): def __init__(self): self.mydict = {} self.__contains__ = self.mydict.__contains__ a = A() 1 in a I get: Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: argument of type 'A' is not iterable What I am making wrong? When I call a.__contains __(1), everything goes smooth. I even tried to define an __iter __ method in A to make A more

This question already has an answer here: Under what circumstances are linked lists useful? 15 answers After having read this question and looking at some results here , it seems like one should altogether completely avoid lists in C++. I always expected that linked lists would be the containers of choice for cases where I only need to iterate over all the contents because insertion is a matter of pointer manipulation and there is never a need to reallocate. Apparently, because of "cache locality," lists are iterated over very slowly, so any benefit from having to use less reserve memory or

For two processes A and B, the both use the library libc.so, libc.so is loaded into memory only once. This is a normal situation when A and B both run on the same host and the same rootfs. When it comes to container, if A and B are running in different containers, are A and B sharing same memory area? for example imageA --libc.so --programA imageB --libc.so --programB we use chroot to run A and B in different rootfs. The two libc.so are same. Will libc.so be loaded into memory twice? Actually, processes A & B that use a shared library libc.so can share the same memory. Somewhat un-intuitively

I have a container view, @property (weak, nonatomic) IBOutlet UIView *containerView; , but it won't move when I set its frame. Here is how I am trying: - (void)setFramesForCategories { CGRect frame = _containerView.frame; frame.origin.x = 20; frame.origin.y = self.view.frame.size.height - 52; frame.size.width = 236; frame.size.height = 60 * [[_dataDict objectForKey:@"Key"] count]; _containerView.frame = frame; } I know this is basic and it has worked for me before, when I was moving programmatically created objects, but it is not working for me now. The problem I had was the constraints set up

Can anyone tell me how to find available agent containers through java code? I am using the JADE agent framework and I have figured out how to create new containers but not find existing containers (so that agents can be deployed in them). There are two ways of doing this, depending on whether you want to receive the information via an ongoing service or the current snapshot in a message. To get a snapshot of the IDs of the currently available agent containers, send a Request message to the Agent Management Service (AMS) and wait for its reply. Using the JADE Management Ontology and the