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Can you help me get my head around openssl public key encryption with rsa.h in c++?

- by Ben

Hi there, I am trying to get my head around public key encryption using the openssl implementation of rsa in C++. Can you help? So far these are my thoughts (please do correct if necessary) Alice is connected to Bob over a network Alice and Bob want secure communications Alice generates a public / private key pair and sends public key to Bob Bob…

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PHP upload script

- by Darkmage

Using this upload script and it was working ok a week ago but when i checked it today it fails. I have checked writ privileges on the folder and it is set to 777 so don't think that is the problem. Anyone have a idea of what the problem can be? this is the error Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to access…

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Why html frame behave differently in Firefox and IE8 ?

- by Frank

I use html frame on my webiste, it's been running for I while, usually I only use Firefox to surf the net, my site looks and functions ok, but today I suddenly found IE8 has a problem with the frame on my site, if I click on the top menu items, it's supposed to display the content in the lower part of the frame, it does this correctly in…

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Warning of "Control may reach end of non-void function"

- by Cloud_cal

I ran a C++ program in Xcode, and encountered a warning of "Control may reach end of non-void function". Here is the code: Node* search(Node* head, int x) { if(!head) return NULL; else if(x == head->key) return head; else if(x < head->key) search(head->lchild, x); else …

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error - inherited class field undeclared according to g++

- by infoholic_anonymous

I have a code that has the following logic. g++ gives me the error that I have not declared n in my iterator2. What could be wrong? template <typename T> class List{ template <typename TT> class Node; Node<T> *head; /* (...) */ template <bool D> class iterator1{ protected:…

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Using themed css files requires a header control on the page. (e.g. <head runat="server" />).

- by wide

in local it works. when i load server, i got this error. Using themed css files requires a header control on the page. (e.g. <head runat="server" />). Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error…

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Jquery loaded? Colorbox is available? Calling some js file via $.getScript are always downloading fr

- by uzay95

I am dynamically load js files with _tumIsler.js (_allStuff.js) <script src="../js/_tumJsler.js" type="text/javascript"></script> It contains: // url=> http: + // + localhost:4399 + /yabant/ // ---- ---- -------------- -------- // protocol + "//" + host +…

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I cant really wrap my head around BOOLEAN logic when I use NOT together with AND and OR

- by Bq

Im trying to understand how boolean logic works when I use NOT. To give an example using awk I have a text file containing CORE PORT CORE PORT COREPORT CORE COREPORT And I would like to remove all COREPORT lines. The way I thought I would do it was with (NOT CORE) AND (NOT PORT) eg awk…

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How to retrieve the head of a html document using YQL ?

- by sork

I'm curious if this is possible at all since a "select * from html" query only returns the body of the document.

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ListView images just not showing up. Why (Drooping my head in shame that I have to ask)

- by Quigrim

I am trying to display images in a WinForms ListView that is in details view mode, but images are just not showing up. I have added a SmallImageList (and a large one for good measure, added images to them, added my items to the ListView, but when I set the ImageIndex nothing happens. Images…

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Git: HEAD has disappeared, want to merge it into master.

- by samgoody

The top image is the output of: git reflog. The bottom is what GITK in GIT GUI (msysgit) shows me when I look at all branch history. The last few commits do not show on GIT GUI. Why do they not show on GITK (at least as a branch or something)? How do I merge them into master? I gather…

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Help me to get my head around finding cycle start node in cycle linked list?

- by Passionate programmer

I understand that Tortoise and Hare's meeting concludes the existence of loop, but how does moving tortoise to beginning of linked list while keeping the hare at meeting place, followed by moving both one step at a time make them meet at starting point of cycle?

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Any way to add an observer to the head of the queue using Element#observe?

- by Josh

This might not be possible but before I rewrite part of my application I wanted to ask... I have a JavaScript app which creates a submit <input> and observes that input's click event using Prototype's Element#observe function. For a few particular pages on one particular site…

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How can I remove the head of a main function?

- by Nathan McDavitt-Van Fleet

I am trying to move some code from a seperate binary and have it inside my main program. Unfortunately I can't mimic the initialization variables for the main function. How can I create argc and argv by hand? Can someone give me some example assignments. since it looks like this: …

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GIT: head has dissapeared, want to merge it into master.

- by samgoody

The top image is the output of: git reflog. The bottom is what GITK in GIT GUI (msysgit) shows me when I look at all branch history. The last few commits do not show on GIT GUI. Why do they not show on GITK (at least as a branch or something)? How do I merge them into master? I…

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cannot delete from doubly linked list using visual studios in C

- by Jesus Sanchez

hello I am currently doing an assignment that is supposed to read in a file, use the information, and then print out another file. all using doubly linked list. Currently i am trying to just read in the file into a doubly linked list, print it out onto the screen and a file, and…

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Create lags with a for-loop in R

- by cptn

I've got a data.frame with stock data of several companies (here it's only two). I want 10 additional columns in my stock data.frame df with lagged dates (from -5 days to +5 days) for both companies in my event data.frame. I'm using a for loop which is probably not the best…

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I need to hire a web developer but I'm not sure which qualifications/skills they should have to do what I see in my head. Any help?

- by Beau

I'm looking to develop a simple image editor wherein a user can cycle through multiple layers (6-10) of images to develop a unique avatar. For example, the initial image layer will be a 2D character of their choice, mostly void of any accessories. The next image layer would…

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Is it possible to increase the levels of abstraction I can hold in my head/reason about at once? How would I go about this? [closed]

- by invaliduser

I'd like to be able to read through fifteen pages of assembly code and know what it does. I'd like to be able to write programs that write programs that write programs that write programs. We've made a lot of strides in taking load off our brains by with good tools…

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Returning a list from a function in Python

- by Jasper

Hi, I'm creating a game for my sister, and I want a function to return a list variable, so I can pass it to another variable. The relevant code is as follows: def startNewGame(): while 1: #Introduction: print print """Hello, You will…

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Rotate a linked list

- by user408041

I want to rotate a linked list that contains a number. 123 should be rotated to 231. The function created 23 but the last character stays empty, why? typedef struct node node; struct node{ char digit; node* p; }; void rotate(node** head){ node*…

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Fill container with template parameters

- by phlipsy

I want to fill the template parameters passed to a variadic template into an array with fixed length. For that purpose I wrote the following helper function templates template<typename ForwardIterator, typename T> void fill(ForwardIterator i) { } …

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Laptop shuts down upon waking from suspend

- by Bryan Head

The computer enters suspend either by closing lid, choosing suspend from the top-right drop down, or hitting the power button and pressing suspend. It doesn't matter. I then attempt to wake the computer either by opening the lid (if it was closed) or…

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OOD: All classes at bottom of hierarchy contain the same field

- by My Head Hurts

I am creating a class diagram for what I thought was a fairly simple problem. However, when I get to the bottom of the hierarchy, all of the classes only contain one field and it is the same one. This to me looks very wrong, but this field does not…

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Cannot get script to run at startup (tried all the simple answers)

- by Carey Head

I have Ubuntu Desktop 12.04 LTS running great on an older Acer desktop. I want to use this machine as an in-home server for hosting Minecraft. The command to start the Minecraft server is java -Xmx1024M -Xms1024M -jar minecraft_server.jar nogui…

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