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• Convert Nulls to Empty String in an object.

  - by John

  What is the easiest way to take an objects and convert any of its values from null to string.empty ? I was thinking about a routine that I can pass in any object, but I am not sure how to loop through all the values.

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• Where namespace does operator<< (stream) go to?

  - by aaa

  If I have have some overloaded ostream operators, defined for library local objects, is its okay for them to go to std namespace? If I do not declare them in std namespace, then I must use using ns:: operator <<. As a possible follow-up question, are there any operators which should go to standard or global namespace?

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• difference between erase and remove/remove_if algorithms?

  - by Eric

  What is really the difference between the algorithms remove and remove_if and the member function erase? Does both of them result in a call to the removed objects destructor?

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• How do I register a marker interface so it is visible in Plones's ZMI?

  - by joeforker

  I would like to register a marker interface so I can add it to objects in the ZMI. My product's configure.zcml contains: <interface interface=".interfaces.IMarkerInterface" /> and, after reinstalling, the interface shows up in the list of available interfaces. But if I try to add it to an object in the ZMI I get a ComponentLookupError. What's missing?

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• Jquery .show() and .hide() or even .css({"display":"none"}); not working in firefox?

  - by tarnfeld

  For some odd reason the part where objects are shown and hidden in my script doesn't seem to be working. I'm not sure if its the fact firefox doesn't like that or whether its the function-based code I have (to save duplicating lines of code)? There is a working example here and the javascript is here All help appreciated

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• Is it worth setting pointers to NULL in a destructor?

  - by Rob

  Imagine I have a class that allocates memory (forget about smart pointers for now): class Foo { public: Foo() : bar(new Bar) { } ~Foo() { delete bar; } void doSomething() { bar->doSomething(); } private: Bar* bar; }; As well as deleting the objects in the destructor is it also worth setting them to NULL? I'm assuming that setting the pointer to NULL in the destructor of the example above is a waste of time.

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• how do you dynamically load a uitableview from a nsarray

  - by darthwillard

  so i have a nsmutablearray that populates from a socket message. problem is, when i call numberofrowsinsection on the uitableview, it will be 0, because it loads from the array. the array has 0 objects, because the incomingMessage hasn't been received yet. i observe this array in my appdelegate, when it changes, i call refreshData on the tableView, but it doesn't refresh. how do you load a uitableview from a dynamic array?

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• C/C++ opaque pointer library

  - by aaa

  hello Is there library/header already written to manage C++ objects from C using opaque pointers/handles? I can write one myself, but I would rather use already made solution, especially if it has fortran bindings. Thanks

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• Adding settings to Settings

  - by c0dem4gnetic

  The application I am developing is in large parts a background-only Service BUT requires some settings that the user must add. Is there a way to integrate applications with the common Settings application/view/activity?

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• Storing Images

  - by Mike

  Hello All, How to Store Large size Images into iPhone Application? Images are taken from UIImagePickerController but saving into Database and retrieving from Database crash the application.

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• Should I reuse Points and Rectangles or create new ones?

  - by Newtang

  In a method that gets called frequently, like a painting event, is it more efficient to reuse Point and Rectangle Objects (for specifying locations and bounds), or should I create new ones.

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• how to read the fields in the object that is store in the array in objective-c

  - by uttam

  my appdelegate is having the array book, this array is storing the many object. this object are containing the many latitude and longitude values coming from server. and later i want to assing that values to the coordinate of the cllocationcoordinate2d object. how can i read that values of latitude and longitude store in the object and that objects are store in the array.

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• J2EE v6 and .NET 4.0 comparison

  - by sme89288

  We are running our applications on .NET 3.5 and are planning on either updating to .NET 4.0 or switching entirely to the Java platform, J2EE v6, as we've heard from some clients that "it's better." Can anyone either explain some of the large differences between the two platforms and maybe what kind of costs would be associated with switching to Java rather than just updating, or point me to some articles or papers that make such comparisons? Thanks!

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• Updating Access Database with Json in ASP

  - by krishit

  Hi, I have to use Json objects and Create, Update, delete and retrive the records in asp. if anybody have an example, please help me. Thanks in advance.

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• This code works fine in Chrome, Firefox but not in IE.

  - by Jeddizero

  Hi, I'm trying to make a jquery tooltip that appears when a user mouses over a link. In my case the link is using display:block style so that it covers a large area. It works perfectly in Chrome and Firefox but in Internet Explorer it doesn't work at all. The tooltip doesn't show, the browsers own tooltip shows etc... IE!!!! http://pastebin.com/1kBaMujV Any ideas? Got to love internet explorer...

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• JQuery - Extend and Access Superclass

  - by Steve

  Is there a way to access the super object when extending objects using $.extend? I would like to extend an object, override a method, but call the overridden superclass method in the subclass method.

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• What influences the timing of a GC?

  - by dotnetdev

  I know it is not possible to know when a gc occurs, but there are factors that will tell you how often/when it may occur. What factors are these? One is how many objects are created, etc. Thanks

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• C++ STL-conforming Allocators

  - by myahya

  What allocators are available out there for use with STL when dealing with small objects. I have already tried playing with pool allocators from Boost, but got no performance improvement (actually, in some cases there was considerable degradation).

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• LINQ Query with 3 levels

  - by BahaiResearch.com

  I have a business object structured like this: Country has States, State has Cities So Country[2].States[7].Cities[5].Name would be New York Ok, I need to get a list of all the Country objects which have at least 1 City.IsNice == true How do I get that?

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• How to map a long integer number to a N-dimensional vector of smaller integers (and fast inverse)?

  - by psihodelia

  Given a N-dimensional vector of small integers is there any simple way to map it with one-to-one correspondence to a large integer number? Say, we have N=3 vector space. Can we represent a vector X=[(int32)x1,(int32)x2,(int32)x3] using an integer (int48)y? The obvious answer is "Yes, we can". But the question is: "What is the fastest way to do this and its inverse operation?"

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• How can I tell Wordpress to reset all posted image sizes to the largest set width?

  - by robalan

  I've set the width of large files in Wordpress' Media settings: http://cl.ly/7wX but how can I tell Wordpress to apply the setting to all the images I've already inserted in posts? It's limiting them to a previous setting of 500px wide. Thanks!

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• Are there any data-binding solution that works in C++ and GWT and supports structures polymorphism?

  - by user116854

  I expect it should share a common description, like XmlSchema or IDL and should generate classes for target language. I found Thrift and it's really nice solution, but it doesn't support structures polymorphism. I would like to have collections of base class objects, where I could place instances of subclasses, serialize this and deserialize at the opposite side. Some mechanism of polymorphic behavior support, like Visitor, would be a perfect. Does anybody know something suitable for these requirements?

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• Python: Strip everything but spaces and alphanumeric

  - by j00niner

  I have a large string with brackets and commas and such. I want to strip all those characters but keep the spacing. How can I do this. As of now I am using strippedList = re.sub(r'\W+', '', origList)

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• Documenting functions in C++ with Doxygen

  - by Paul

  I've got a project that I'm using Doxygen to generate documentation to. The documentation of the classes is fine, but I've also got some functions that I use in main() to create objects etc. I'd also like to have these into my documentation, but I have not figured how to do that. Any suggestions?

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• Hadoop: Mapping binary files

  - by restrictedinfinity

  Typically in a the input file is capable of being partially read and processed by Mapper function (as in text files). Is there anything that can be done to handle binaries (say images, serialized objects) which would require all the blocks to be on same host, before the processing can start.

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