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• C++ interview question involving class pointers

  - by benjamin button

  Lets say there is a base class pointer which is pointing to a base class object: baseclass *bptr; bptr= new baseclass; now if i do bptr= new derived; what is the problem here?

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• Getting started with unit testing in VS2010?

  - by Herb Caudill

  I'm new to both unit testing and Visual Studio 2010 (just upgraded from 2008). I'm interested in using VS2010's new built-in unit testing tools, but would like to get the lay of the land first. I haven't been able to find any resources or tutorials on unit testing with VS2010 specifically - has anyone found a good walk-through? I'm also open to persuasion that we should stick with NUnit or the like, if anyone knows a reason to avoid the built-in tools.

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• Which user account to assign as owner when attaching an SQL Server database?

  - by FreshCode

  This is a simple database security & performance question, but I've always used either a special user (eg. mydbuser), or Windows' built-in NETWORK SECURITY account as the owner when attaching databases to my SQL Server instances. When deploying my database to a production server, is there a specific user I should stick to or avoid? I would think that using an account with a set password could open the database up to a potential security issue.

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• Preventing fixed footer from overlapping content

  - by Robert Morgan

  I've fixed my footer DIV to the bottom of the viewport as follows: #Footer { position: fixed; bottom: 0; } This works well if there isn't much content on the page. However, if the content fills the full height of the page (i.e. the vertical scroll bar is visible) the footer overlaps the content, which I don't wont. How can I get the footer to stick to the bottom of the viewport, but never overlap the content?

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• Arrow in nav menus in CSS/JS (e.g. playframework.org)

  - by manmal

  The navigation menu at the top of the www.playframework.org site features a small arrow pointing upward for the currently selected section (Home, Learn, Download,...). I tried to get behind the implementation they used, but I can't wrap my head around it - the resource does not show up in Chrome's Resources window, and an inspection of the elements did not show any signs of a background image, nor a JS interceptor (although I might have missed that). What in hellhound's name is going on there? :)

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• Where is the classpath variable restored in eclipse?

  - by httpinterpret

  If I manually add another variable like M2_REPO pointing to a directory, I don't find it in either .project or .classpath, where is it restored then?

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• How to return an [out] variant with VT = VT_RECORD without creating memory leak in ole32.dll?

  - by picarodevosio

  Hi, Purify is pointing memory leak in ole32.dll while returning a Variant with VT set to VT_RECORD as OUT parameter. I am using User Marshalling by generating proxy/stub dll from IDL. Can you suggest how to avoid this memory leak? Thanks Picaro De Vosio

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• Visio 2010, how to change the text to horizontal on a line that is vertically aligned?

  - by JL

  I have a line that is pointing downwards. I have added some text description to this line and I would like it to be horizontally aligned, but I can't find a way to change the orientation. By default the text faces the same direction as the line (arrow). How can I get the text to be horizontally aligned? Thanks

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• [Embedded Python] Invoking a method on an object

  - by jmucchiello

  Given a PyObject* pointing to a python object, how do I invoke one of the object methods? The documentation never gives an example of this: PyObject* obj = .... PyObject* args = Py_BuildValue("(s)", "An arg"); PyObject* method = PyWHATGOESHERE(obj, "foo"); PyObject* ret = PyWHATGOESHERE(obj, method, args); if (!ret) { // check error... } This would be the equivalent of >>> ret = obj.foo("An arg")

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• C++ code which is slower than its C equivalent?

  - by user997112

  Are there any aspects to the C++ programming language where the code is known to be slower than the equivalent C language? Obviously this would be excluding the OO features like virtual functions and vtable features etc. I am wondering whether, when you are programming in a latency-critical area (and you aren't worried about OO features) whether you could stick with basic C++ or would C be better?

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• How would you show a file with CURL? [PHP]

  - by Kyle

  There is an epic lack of php CURL love on the internet for beginners like me. I was wondering how to use CURL to download & display an ICS file (They're plain text to me...) in my php code. Unless Fopen is 1,000 times easier, I'd like to stick with CURL for this one.

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• C++ interview question

  - by benjamin button

  as i am not an expert in c++,i was not aware of the answer to this question asked in one of the interviews. lets say there is a base class pointer which is pointing to a base class object: baseclass *bptr; bptr= new baseclass; now if i do bptr= new derived; what is the problem here?

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• Put objects which are decorated with [DataContract] into a StateServer?

  - by Dave

  Is there anyway to stick objects which are decorated with DataContract attributes but not decorated with Serializable attributes in to a SqlServer StateServer? In other words, I would prefer not having to decorate these objects with the Serializable attribute as I will also have to implement IXmlSerizable on all of these objects because they do not have empty contstructors, and non-public setters for properties.

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• How to insert a WebView into a cocoa app?

  - by spamoom

  I'm rather new with the whole OSX programming, I wanted to stick a WebView into an empty app. Apparently it isn't as simple as sticking a WebView on a window in interface builder and creating an outlet. IBOutlet WebView *webView; It gives me a expected specifier-qualifier-list before 'WebView' and when I don't use an outlet, it terminates due to uncaught exception. I'm not too sure what these error messages mean. Seems it isn't that simple!

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• C#, LINQ. How to find an element within group of elements

  - by Bobb

  Imagine you have int[] data = new int [] { 1, 2, 1, 1, 3, 2 } I need sub-array with only those which conform to a condition data[i] data[i-1] && data[i] data[i + 1]... i.e. I need all items which stick over their immediate neighbours. From example above I should get { 2, 3 } Can it be done in LINQ? Thanks

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• Changing Visual Studio's default build output path

  - by JC

  Are there any good reasons to modify your projects build output path from its default of "bin\debug"? Is there any benefit to pointing all your projects within a solution to a common build output location?

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• Is there anyway an app can use more than 16mb in memory?

  - by Sarevok

  I understand most Android devices have a 16mb limit (24mb on Nexus One) on the Java heap size. Is there any way a single app can use more memory than that? I know the native SDK doesn't have this limitation but I'd like to stick with Java.

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• Fluid width Son of Suckerfish dropdown menus

  - by derekerdmann

  For CSS dropdown menus, I usually stick with the Son of Suckerfish dropdowns. The technique works extremely well, but there's one small thing that's always bothered me: the width of the dropdown links is always fixed. Are there any ways to automatically resize the width of the items in a Suckerfish dropdown menu? If not, are there any other CSS-based dropdown menu strategies that can accomplish this?

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• WPF on a iX104 Tablet PC - efficient enough?

  - by Casimodo72

  Hi, I'm considering to use WPF for an application running on an iX104 (unfortunately I don't have one of those yet). Do you guys think that this combination would be efficient enough? Or is WPF just to slow for such a machine, so better stick with WinForms? Relevant specs of the iX104: Intel Pentium U2500 CoreDuo 2x 1.2 GHz 1 GB RAM, optional 2 GB 10.4" TFT, XGA 1024x768 Regards, Kasimier

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• Fix a font size for .NET GUI

  - by Dmi

  Hi, Depending on the font settings (DPI and such) on the user's computers, I can have text become too big to fit in a button and moves down to the next line (wrap), so if it is a small button that says "Do xyz", it will only show "Do" unless I increase the height on the user's computer, but it looks fine on mine. Is there any way to force it to stick to original font size?

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• View execution line in netbeans

  - by AC

  How can view the execution line used by netbean v6.8 to execute my java application when I press the run program button (right pointing green arrow)? I'm looking for something like: java -cp build/class Main I'm trying to make the jump to java IDE developement from 15 years writing c and c++ with vi. I'm starting with netbean since it seems to have the best vi key bindings.

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• Is it a good practice to always use smart pointers ?

  - by Dony Borris

  Hi, I find smart pointers to be a lot more comfortable than raw pointers. So is it a good idea to always use smart pointers? ( Please note that I am from Java background and hence don't much like the idea of explicit memory management. So unless there are some serious performance issues with smart pointers, I'd like to stick with them. ) Any advice would be greatly appreciated. Thanks.

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• Air/Flex concatenating a variable with a property

  - by Deyon

  I have three text boxes on the stage id=red, blue, green same as the keys in my cars Object/Array public function carsToBox():void { var cars:Object={red:"300zx",blue:"Skyline",green:"Supra"}; for(var tempObj:String in cars) { tempObj.text= cars[tempObj];//this trows errors } } So I'm thinking "tempObj.text" would equal red.text but I can't stick "tempObj" with ".text" is there a way this can be done?

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• SEO Friendly URLs where the phrase used may change in Rails

  - by Newy

  Say I have http://www.mysite.com/I-Like-Cheeseburgers and I want that to point to Item with id 3. Sometime later, I change the name of the item, and now its http://www.mysite.com/I-Like-Hamburgers (and perhaps many more times). I want all these URLs to remain pointing to Item 3. Is it efficient to simply keep a table of [strings,item_ids] and do a lookup on this? Is there a better way?

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• Answered: Selecting even table rows from a table element

  - by mvrak

  The issue I am having is: How do I go from a variable pointing at an element to using CSS selectors? I want to make this work: function highlight(table) {$(table " > :even").toggleClass('highlight');} where table is a reference to a table element. I don't want answers that tell me to use $('#table') because that defeats the point of the generality I am trying to make. Thanks

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