namespaces

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . For a long time ago, I have thought that, in java, reversing the domain you own for package naming is silly and awkward. Which do you

问题 I want to overload operator<< for my class. Should I add this overloaded definition to the std namespace? (since the ostream operator<< is part of the std namespace) Or should I just leave it in the global namespace? In short: class MyClass { }; namespace std { ostream& operator<< ( ostream& Ostr, const MyClass& MyType ) {} } OR class MyClass { }; std::ostream& operator<< ( std::ostream& Ostr, const MyClass& MyType ) {} Which is more appropriate and why? Thanks in advance for your responses.

问题 I am getting an undefined reference when trying to use variables from my namespace. I created a header file and an implementation file with the namespace in it and am trying to use the namespace in another file... EDITED: //first.h namespace first { extern int var; extern int multiplyVar(int); } //first.cpp namespace first { int var = 5; int multiplyVar(int mult) { return mult * var; } } //someOtherFile.h #include "first.h" //someOtherFile.cpp first::var = 3; int newVar = first::multiplyVar(3

问题 Currently : I have the following Using in my program. using Mtx; which allows me to use Mtx.* properties. It refers to a file in "Externals" folder. Path is : Externals/Mtx.dll Needed : However, for debugging purposes, I'd like to now have the whole mtx solution in external and use it. Path is : Externals/Mtx/(solution in there with all folders) How can I do so, so instead of Using refers to the Mtx.dll , it now refers to the solution and build it has part of its own? 回答1: I think that you

问题 This is a follow-up question to this one. Given the answer on that question, let's say I have the following ambient declaration file: declare namespace Twilio { interface IDevice { ready(handler: Function): void; } let Device: IDevice; } This is working nicely on my application .ts files, Twilio.Device.ready is fully recognized. But I have my unit tests running with Jest and AFAIK, they run on a NodeJS environment. As an over simplified mock on my tests I have this (which are .ts files too):

问题 I am new to c++, and I am trying to get a basic program to initialize a list of short unsigned integers. I am compiling and running using scygwin and g++. Below is the code in the .cpp file: #include <iostream> #include <fstream> #include <sstream> #include <string> #include <typeinfo> using namespace std; int main (int argc, char* argv[]) { list<int> events; return 0; } which I run by typing the following command into cygwin terminal: $ g++ -o test.out test.cpp However, I get the following

问题 I have built a HTML5 tool that used to be on a stand alone page. A client wants to include it in their page, but is concerned about CSS conflicts. I would like to put my tool in a wrapper div with a class of say 'customtool' and then preface every CSS selector with .customtool I have a number of stylesheets and the total number of selectors is high. I am aware of the risk of human error with a manually amending the selectors. Obviously I cannot simply target '.' or '#' as it would not work

问题 I have been reading up on namespacing, Object literals, IIFEs, etc. and I'm trying to understand which of the following is the right way to namespace JavaScript code? Namespace with nested external functions using IIFE let myApp = myApp || {}; myApp.some_var = "someString"; myApp.some_func = (function(){ const some_const = 1; let some_other_func = function(){ console.log(some_const); }; return { some_other_func: some_other_func } }()); myApp.another_func = (function(){ const another_const = 2

问题 i recently updated using composer. After updating I am getting error in php file , where I am sending data to intercom. This is the error : Fatal error: Class 'Intercom\IntercomBasicAuthClient' not found in <filename> I found a similar problem here Symfony Exception (Class not found) only on development and production servers. But couldn't understand exactly how to solve the issue. I tried using intercom in Uppercase as well as lowercase, but problem is not solved. In my installed.json I

问题 i recently updated using composer. After updating I am getting error in php file , where I am sending data to intercom. This is the error : Fatal error: Class 'Intercom\IntercomBasicAuthClient' not found in <filename> I found a similar problem here Symfony Exception (Class not found) only on development and production servers. But couldn't understand exactly how to solve the issue. I tried using intercom in Uppercase as well as lowercase, but problem is not solved. In my installed.json I