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• C++: Can't use std::wstringstream

  - by Rosarch

  For some reason, my project won't compile when I try to create a wstringstream: std::wstringstream stringstream; This causes error C2079: 'stringstream' uses undefined class 'std::basic_stringstream<_Elem, _Traits, _Alloc with [_Elem=wchar_t, _Traits=std::char_traits, _Alloc=std::allocator' What am I doing wrong?

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• Understanding Scope on Scala's For Loops (For Comprehension)

  - by T. Stone

  In Chapter 3 of Programming Scala, the author gives two examples of for loops / for comprehensions, but switches between using ()'s and {}'s. Why is this the case, as these inherently look like they're doing the same thing? Is there a reason breed <- dogBreeds is on the 2nd line in example #2? // #1 ()'s for (breed <- dogBreeds if breed.contains("Terrier"); if !breed.startsWith("Yorkshire") ) println(breed) // #2 {}'s for { breed <- dogBreeds upcasedBreed = breed.toUpperCase() } println(upcasedBreed)

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• I am getting error as "operation aboarded, Internet explorer can't open the page"

  - by OM The Eternity

  I have created a shopping cart site, and i have got two complains for the same issue, but i am not able to track the main problem... They whenever they complete the process and reach at the last page they get the error message as "operation aboarded, Internet explorer can't open the page" Could someone helo me out? what could be the reason behind this.. i tried to get the error in IE-6,7,8 but I didnt get any error... ?

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• Code formatting when using pointers

  - by HD-VRSCA

  Is there any reason why the asterisk is next to the object type in this code? I'm a little confused by the way I see this used. Some times it looks like this: NSString* stringBefore; and sometimes like this: NSString *stringBefore; Is there a difference? Or a right or wrong way to do this? Thanks

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• Can zend's lucene implementation be configured to use a mysql database instead of the file system?

  - by soulmerge

  Is there an option for Zend's lucene implementation (or a third-party plugin) that would allow me to put the lucene dictionary into a [MySQL] database? The reason I need to ask is that the database is the only common resource for our two otherwise independent web servers.

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• Why can't your switch statement data type be long Java?

  - by Fostah

  Here's an excerpt from Sun's Java tutorials: A switch works with the byte, short, char, and int primitive data types. It also works with enumerated types (discussed in Classes and Inheritance) and a few special classes that "wrap" certain primitive types: Character, Byte, Short, and Integer (discussed in Simple Data Objects ). There must be a good reason why the long primitive data type is not allowed. Anyone know what it is?

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• Compressing ASPX pageview in code or compress HTTP in IIS?

  - by DDiVita

  In the past, with pages with large viewstate I have overridden the PageStatePersister class so when the state is saved I compress it. On Load I decompress it. I have haven't really thought about it, but could IIS handle something like this better? The reason I did this was to keep my pages slimmer because I have a lot of custom controls on the page and the viewstate was huge. This is where I got my original code from: http://www.codeproject.com/KB/viewstate/ViewStateCompression.aspx?msg=1906999

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• Escapeing values in PDO statements

  - by Pardoner

  Doesn't prepare() escape any quotes(') in a PDO statement? For some reason when I do this: $sql = "INSERT INTO sessions (id, name) VALUES (1,'O'brian')"; $query = $this->connection->prepare($sql); $query->execute(); I get this error: Could not insert record SQLSTATE[42000]: [Microsoft][SQL Server Native Client 10.0][SQL Server]Incorrect syntax near 'brian'. How could this be if I'm using prepare()?

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• If I never ever use HashSet, should I still implement GetHashCode?

  - by Dimitri C.

  I never need to store objects in a hash table. The reason is twofold: coming up with a good hash function is difficult and error prone. an AVL tree is almost always fast enough, and it merely requires a strict order predicate, which is much easier to implement. The Equals() operation on the other hand is a very frequently used function. Therefore I wonder whether it is necessary to implement GetHashCode (which I never need) when implementing the Equals function (which I often need)?

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• What happens inside the try block?

  - by dontWatchMyProfile

  Example: @try { // 1) do bad stuff that can throw an exception... // 2) do some more stuff // 3) ...and more... } @catch (NSException *e) { NSLog(@"Error: %@: %@", [e name], [e reason]); } If 1) throws an exception, is the block immediately canceled like a return in a function or a break in a loop? Or will 2) and 3) be processed no matter what happens in 1)?

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• needs run as administrator in vista and seven

  - by sam

  I have a windows application,sometimes in windows 7(also ultimate with administrator user) and vista to run it i need to right click and run it as administrator,I know the reason is attempt to access to system directories from my program,how i can solve this problem,is net user administrator /active:yes that using for enabling the real aministrator account solve the problem? if no what should i do ! Thx

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• What do you do if a webservice in unavailable when updating a dropdown?

  - by John

  I am populating a dropdown from a jquery ajax call to a web service that is returning json data. If for some reason the webservice fails or is unavailable how do I handle this? I don't want to have my users looking at an empty dropdown. How can I cache the last successful call and use that instead?

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• Rails 2.3.5 - f.label :attribute not being wrapped by field_error_proc

  - by Simon

  For some reason when an object's instance has errors, the f.label tags associated with error attributes isn't wrapped about the field_error_proc. Is this the default behaviour?

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• iphone shake error

  - by aaa

  Right now I have this- [code] - (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event { if (event.type == UIEventSubtypeMotionShake) { int text = rand() % 12; switch (text) { case 0: textview.text = @"blah." ; break;[/code] For some reason, the text has to be selected for it to work. If you just shake it, nothing will happen.

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• Prevent web2py from caching ?

  - by Joe

  Hi ! I'm working with web2py and for some reason web2py seems to fail to notice when code has changed in certain cases. I can't really narrow it down, but from time to time changes in the code are not reflected, web2py obviously has the old version cached somewhere. The only thing that helps is quitting web2py and restarting it (i'm using the internal server). Any hints ? Thank you !

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• Check to see if today is a certain date

  - by luckytaxi

  I want to check if the day is Sunday, but for some reason I can't get it to work. [[ "date '+%a'" == "Sun" ]] && echo "Today is Sunday"

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• Why the positions of the elements change on the page after a postback?

  - by burak ozdogan

  Did you have such an experience: I have an asp.net page with couple of div elements on my page. Some of them are floating left and some are separated with <br /> elements. When I put a button which just post-backs, I see that some divs (which were floated to left before) is repositioned to a new line. Any idea about the reason? thanks,

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• Javascript popup different size in different browsers?

  - by Zolomon

  How come this pop-up gets a size other than what I have specified, when testing it in IE6 and FireFox 3.6? Firefox displays it correctly but IE6 is smaller for some reason. (620x530 instead) How can I fix it? <A id="myID" onclick="window.open('/sitecollectiondocuments/myPage.htm',&#13;&#10;'welcome','width=630,height=590')" href="javascript:void(0)"></A>

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• Drupal, LightBox: how do set the height of the iFrame LightBox according to its content ?

  - by Patrick

  Hi, I'm using lightbox to include articles in my pages (iframes), and I'm wondering how can I assign the correct height to my lightbox (wrapping the content). I don't have access to the height of the iFrame from css or javascript for some reason. Could you give me some help ? thanks

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• How to select distinct values from XML document using XPATH?

  - by Alex

  How can I select only distinct elements for the XML document using XPATH?I've tried to use the 'distinct-values' function but it didn't work for some reason..

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• jQuery::Ajax success never occurs

  - by Legend

  I have an ajax call in the head section of my index.html $.ajax({ method: 'get', url : 'php/getRecord.php?color=red', dataType: "json", success: function (data) { alert(data); } }); For some reason, that alert never gets called. Am I doing something wrong? The PHP file does give me data when testing it directly.

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• Paste event for a DisplayObjectContainer not registered in AS3

  - by intoTHEwild

  I have a display object container and I am trying to add a paste event to it. But the event is not being registered. The documentation at liveDocs mentions that classes that derive from Interactive objects can dispatch paste event but I dont understand why it wouldnt work for me. My app is not an AIR app, could it be a reason ?

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• error in c, but not in c++

  - by eswar

  const int t=5; char buf[t+5]; When I compile this gives error in C but not in C++!! Can anybody please explain me the reason? Note: I know the const defaults to internal linkage in 'C++', where as in 'C' it defaults to external linkage. Does it has any relation to the above case??

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• Disabled javascript for printing?

  - by Probocop

  This may seem a strange question, but is it possible to disable javascript for the printed version of a webpage? The reason being, it causes the printout's layout to all be on top of each other. But if I turn off javascript it works fine. Any ideas?

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• App rejected due to "iPhone Apps must also run on iPad without modification, at iPhone resolution, and at 2X iPhone 3GS resolution"

  - by sunny

  My app got rejected by the apple because of the reason "iPhone Apps must also run on iPad without modification, at iPhone resolution, and at 2X iPhone 3GS resolution".Apple suggested that "to support the iPad 3GS 2X, and this issue is usually resolved through settings in "compatibility" mode. "no black bar's or borders"".So,my question is how to set and run the app in compatibility mode.Any one having this issue please help on this issue.I have no idea to go forward. Please any suggestions and help thanks in advance.

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