clone

I am working on a C++ program, but I am having problem with multiple inheritance when using cloning. The problem (in a simplified form) is the following. I want to be able to clone all objects derived from the class Base. class Base{ public: virtual Base* clone()const=0; }; I want to define two other classes derived from Base, which are both abstract, i.e. I cannot define the clone function, but I have to declare them in some way (I want to make sure, that if I clone Derived*, I will get back Derived* and not Base*, i.e. I want to avoid casting at the point of application) class Derived1:

I have a form that allows users to refer friends. I want to add a link below the two input fields, "friend email" and "friend name", that will clone "friend-box" one time and add it below. In addition, the name attribute of "friend email" and "friend name" are name="friend_email[0]" and name="friend_name[0]" as suggested here . What's the best way to clone and increment the subscript? Here's the code: <div class="friend-box"> <div class="field"> <span><label for='friend_name'><strong>Friend's Name *</strong></label> </span> <input id='friend_name' name='friend_name[0]' type='text' /> </div>

I'm new to linux. I want to make child process and parent process at the same time. But I have failed. Here is my code. Can anybody help me? #define _GNU_SOURCE #include <stdio.h> #include <unistd.h> #include <stdlib.h> #include <sched.h> #include <signal.h> #define FIBER_STACK 8192 void * stack; int do_something(){ int a = 0; while (a<10){ printf("pid : %d, a = %d\n", getpid(), a++); } exit(1); } int main() { void * stack; stack = malloc(FIBER_STACK); if(!stack) { printf("The stack failed\n"); exit(0); } int a = 0; if (c == 0) clone(&do_something, (char *)stack + FIBER_STACK, CLONE_VM|CLONE

How can I clone an existing Parse Cloud Project files to my computer with the command line tool? I tried parse new and selected a project but it created a folder with new files, not the files that I already had in the Parse Cloud. Note: I did not find clue regarding that point in the Parse cloud code documentation neither via Google. Thanks! With the new release of parse-cli, this is possible now. Make sure your cli is at least at version 2.2.5 Follow below instructions to download cloud code files on your new machine: parse new then choose e for existing app, then choose your app. This will

I'm looking at a way to clone an object that is not known at compile time (or run-time, I think). The exact wording of the question is "Write a function that can clone an arbitrary object" E.g. Pass unknown object to function. Return a Deep Copy of object. I'm guessing I will need to use Reflection to read the functions and variables, and then some how create a new object and assign these values to it. I could just use the Type.GetType() to find the type and create a new instance, then use this known object's copy constructor. But I'm not sure whether a given class will have one implemented

This is probably a very simple question, I just don't have the foggiest how to go about it. I have an Object that I want to duplicate, and don't know how to go about it. Here's my attempt: var myObj = new ObjectClass(); var duplicate = myObj; duplicate = null; myObj.function(); // Error: Null reference The ObjectClass is very large, inherets and creates children of it's own, and I'm sure there's probably a few singleton classes in there. Is there a way to duplicate something easily? Edit: Looks like I'm looking for "Cloning", for which there is no AS3 function, and you apparantly can't clone