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• Problem when using \LaTeX \includegraphics with some PDF files

  - by brandstaetter

  I noticed some strange effects when including existing pdf graphics in my laTeX documents: Most file work flawlessly, but some PDFs that were created on a different machine (or from the web) cause the whole page on which they are embedded to become ever-so-slightly distorted. I only notice the difference in a side-by-side comparison, but once you see it, it's obvious. The text layout seems slightly broken, and when you zoom in you can see it better. I will try to make some screenshots to further elaborate, but in the meantime: Has anyone seen this before and how can I get rid of these distortions?

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• Hibernate Query - Get latest versions by timestamp?

  - by Slim

  I have a database that is being used as a sort of version control system. That is, instead of ever updating any rows, I add a new row with the same information. Each row also contains a version column that is a date timestamp, so the only difference is the new row will have a more recent timestamp. What I'm having trouble with is writing an efficient hibernate query to return the latest version of these rows. For the sake of example, these are rows in a table called Product, the timestamped column is version. There are multiple versions of multiple products in the table. So there may be multiple versions (rows) of ProductA, multiple versions of ProductB, etc. And I would like to grab the latest version of each. Can I do this in just a single hibernate query? session.createQuery("select product from Product product where...?"); Or would this require some intermediate steps?

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• IIS7 and ARR as reverse proxy for Subversion

  - by Paul Stovell

  I am using IIS7 and the Application Request Routing extension to act as a reverse proxy to Subversion running on Apache. The proxy works fine and I am able to explore the server, and even perform a "check out". However, I cannot browse to files that would normally be forbidden by ASP.NET - for example, .cs, .csproj, and so on. Files ASP.NET wouldn't be concerned with - such as .txt - are fine. I tried to edit the global web.config to remove the Forbidden handler mapping for these files, but it did not seem to make a difference. Is there any way to allow the URL rewriting module in IIS7 to work, while allowing all file extensions to be rendered?

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• Why would I see PHP NOTICE and ERRORs when running a script as a regular user, but not as root?

  - by Shawn

  As far as I can tell, there's no difference between the error reporting or message redirection between users. They both use the same PHP ini. However, when I run a script as a regular user, I get tons of NOTICES, when run as root, I get none. When starting PHP interactive mode as a regular user, I get two PHP Warnings that 'memcache' and 'xmlwriter' are already loaded; when starting as the root user, I get no warnings. I know that I should be fixing the warnings, not "making the warnings go away;" that's on the ticket. The question is, Why are the users treated differently? Why does a regular user get notices and warnings, but root does not, even if their error reporting are the same?

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• What is the differnce between an Oracle and Microsoft schema?

  - by Tarzan

  I am working on an enterprise project. Some of the team has an Oracle background and some has a Microsoft SQL Server background. There is much confusion when we talk about schemas. I am trying to provide some clarity. Is this an accurate way to describe the difference in the meaning of schemas between the two technologies? An Oracle schema is associated with a single user and consists of the objects owned by the user. A MS SQL Server schema schema is a namespace.

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• Why rails platform developers are changing the syntax?

  - by piemesons

  Hello i am new to rails. I am learning rails 2.3.5 and checked rails 3. I found some features added in rails 3. thats perfectly fine. But i found something different. in 2.3.5 we use ruby script/server to start the server and in rails 3 we use rails server and there are some other changes like this. Whats the improvement by doing this? whats the basic difference between this. Can anybody gimme a list of these changes and explanations for doing this?

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• Java Custom exception throw behaves differently between different Projects

  - by Pablo

  I am attempting to call the following in my code: public void checkParticleLightRestriction(Particle parent) throws LightException { if ( parent == null ) { throw new LightException("quantum-particle-restrict.23", this); } In one Project the exception is thrown and the effect is similar to calling "return" whereby I am returned back to the point immediately succeeding where this method was called. However in another Project I get thrown completed out of the current package and to a point way prior to the point preceeding this method. It likes instead of being kicked out of a bar I am being deported all the way out of the country. My option are the wrap the throw in a try / catch but I am wondering why this difference in behaviour beween the 2 projects ?

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• Doctrine: textarea line breaks & nl2br

  - by Tom

  Hi, I'm pulling my hair out with something that should be very simple: getting line breaks to show up properly in text that's returned from the database with Doctrine 1.2 I'm saving a message: $body = [text from a form textarea]; $m = new Message(); $m->setSubject($subject); $m->setBody($body); $m->save(); Querying the message: $q = Doctrine_Query::create() ->from('Message m') ->where('m.message_id = ?', $id) ->limit(1); $this->message = $q->execute(array(), Doctrine_Core::HYDRATE_ARRAY); In my template: echo $message[0]['body'] ... outputs the text without line breaks echo ln2br($message[0]['body']) ... no difference ... and I've tried every combination I could think of. Is Doctrine doing something to line breaks that's affecting this, or is there something that I'm just missing? Any help would be appreciated. Thanks.

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• Oracle Date format - Strange behaviour

  - by Sauron

  I am writing a SQL query to retrive data from a table between two dates. I give two inputs as shown. I convert the Date TO_CHAR(DD/MON/YYYY). 1. StartDate > 01/SEP/2009 EndDate < 01/OCT/2009 2. StartDate > 01/SEP/2009 EndDate < 1/OCT/2009 I dont get any result for the first input. When I change it to second one i get the result. What is the difference between 01/OCT/2009 1/OCT/2009

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• Where should common static resources (images, js, css, etc) go in DotNetNuke?

  - by Joosh21

  Is there a recommended location to store static resources (images, css, js, etc) in a DotNetNuke 5.x installation? There are /images and /js folders as well as a /Resources folder that contains resources. There appears to be some overlap as MicrosoftAjax.js is in multiple locations (but might be different versions?). I also could put resources in a /DesktopModule/ModuleX location. Does anyone know if there is a difference in using any of these folders? I kinda like the idea of all static resources being under a common folder (/Resources) so I could set caching rule headers, permissions, etc on them in one place. Has anyone used a separate image server to serve DotNetNuke static content? http://stackoverflow.com/questions/913208/pros-and-cons-of-a-separate-image-server-e-g-images-mydomain-com

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• Simple loop, which one I would get more performance and which one is recommended? defining a variable inside a loop or outside of it?

  - by Grego

  Variable outside of the loop int number = 0; for(int i = 0; i < 10000; i++){ number = 3 * i; printf("%d",number); } or Variable inside of the loop for(int i = 0; i < 10000; i++){ int number = 3 * i; printf("%d",number); } Which one is recommended and which one is better in performance? Edit: This is just an example to exhibit what I mean, All I wanna know is if defining a variable inside a loop and outside a loop means the same thing , or there's a difference.

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• How can I remove a browser's cache server-side, using ASP.NET?

  - by Noman

  How can I remove a browser's cache server-side, using ASP.NET (C#)? A coupon shows by itself (I believe it comes from cache as I did also browse for other apparel sites). It breaks my JavaScript as well as my server-side code, as I am using an UpdatePanel for Ajax, and it duplicates the UpdatePanel's ID. I have renamed the UpdatePanel's ID, but it makes no difference. It generates "Invalid view State" exception. The coupon name is "FastSave" What I have tried: Response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1)); Response.Cache.SetCacheability(HttpCacheability.NoCache); Response.Cache.SetNoStore();

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• ViewState Vs Session ... maintaining object through page lifecycle

  - by Kyle

  Can someone please explain the difference between ViewState and Session? More specifically, I'd like to know the best way to keep an object available (continuously setting members through postbacks) throughout the lifecycle of my page. I currently use Sessions to do this, but I'm not sure if it's the best way. For example: SearchObject searchObject; protected void Page_Load(object sender, EventArgs e) { if(!IsPostBack) { searchObject = new SearchObject(); Session["searchObject"] = searchObject; } else { searchObject = (SearchObject)Session["searchObject"]; } } that allows me to use my searchObject anywhere else on my page but it's kind of cumbersome as I have to reset my session var if I change any properties etc. I'm thinking there must be a better way to do this so that .NET doesn't re-instantiate the object each time the page loads, but also puts it in the global scope of the Page class? Please advise. TIA

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• Is the use of union in this matrix class completely safe?

  - by identitycrisisuk

  Unions aren't something I've used that often and after looking at a few other questions on them here it seems like there is almost always some kind of caveat where they might not work. Eg. structs possibly having unexpected padding or endian differences. Came across this in a math library I'm using though and I wondered if it is a totally safe usage. I assume that multidimensional arrays don't have any extra padding and since the type is the same for both definitions they are guaranteed to take up exactly the same amount of memory? template<typename T> class Matrix44T { ... union { T M[16]; T m[4][4]; } m; }; Are there any downsides to this setup? Would the order of definition make any difference to how this works?

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• [dynamic] Different behaviours between .NET 4.0 beta 2 and last release of .NET 4.0 !

  - by yogi4ever

  Hi. I've identified a difference of DLR between .NET 4.0 Beta 2 and the last release of .NET 4.0. In .NET 4.0 Beta 2, this code perfectly works at runtime : var dateTimeList = new List(); dynamic myDynamicObject = dateTimeList; object value = DateTime.Now; myDynamicObject.Add(value); Now, with last release of .NET 4.0, I have an exception at run time (to solve myDynamicObject.Add(value);) :-( In my real code, 'myDynamicObject' is a dynamic (but I know that it is always an ObservableCollection where T can be anything). 'value' is an instance which was got by some reflexions. As 'value' can have any type, the type of 'value' is Object. Do you see how can I solve this new limitation of .NET 4.0 ? Thanks

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• Copy method optimization in compilers

  - by Dženan

  Hi All! I have the following code: void Stack::operator =(Stack &rhs) { //do the actual copying } Stack::Stack(Stack &rhs) //copy-constructor { top=NULL; //initialize this as an empty stack (which it is) *this=rhs; //invoke assignment operator } Stack& Stack::CopyStack() { return *this; //this statement will invoke copy contructor } It is being used like this: unsigned Stack::count() { unsigned c=0; Stack copy=CopyStack(); while (!copy.empty()) { copy.pop(); c++; } return c; } Removing reference symbol from declaration of CopyStack (returning a copy instead of reference) makes no difference in visual studio 2008 (with respect to number of times copying is invoked). I guess it gets optimized away - normally it should first make a copy for the return value, then call assignment operator once more to assign it to variable sc. What is your experience with this sort of optimization in different compilers? Regards, Dženan

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• What is the term(s) used to describe programming language syntax?

  - by Mr Roys

  Is there an exact/correct term to describe this difference between the syntax/constructs of programming langauges e.g VB6 with its (if ... else ... endif) and C# with its curly braces for conditional statements. I'm using VB6 syntax and C# as examples since I'm more familiar with their syntax. For example, Visual Basic 6's syntax uses a more verbose, natural language like structure. If (id = 0) Then id = MyObject.Add(Me) Else Call MyObject.Update(Me) End If while C# has more concise syntax like: if (id == 0) { id = MyObject.Add(this); } else { MyObject.Update(this); } Conciseness? Natural languageness? Or is there a more "scientific" word for describing syntax?

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• Inconsistent Behavior From Declared DLL Function

  - by Steven

  Why might my GetRawData declared function return a correct value when called from my VB.NET application, but return zero when called from my ASP.NET page? The code is exactly the same except for class type difference (Form / Page) and calling event handler (Form1_Load, Page_Load). Note: In the actual code, #DLL# and #RAWDATAFILE# are both absolute filenames to my DLL and raw data file respectively. Note: The DLL file was not created by Visual Studio. Form1.vb Public Class Form1 Declare Auto Function GetRawData Lib "#DLL#" (ByVal filename() As Byte, _ ByVal byteArray() As Byte, _ ByVal length As Int32) As Int32 Private Sub Form1_Load(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles MyBase.Load Dim buffer(10485760) As Byte Dim msg As String, length As Integer = 10485760 Dim filename As String = "#RAWDATAFILE#" length = GetRawData(Encoding.Default.GetBytes(filename), buffer, length) Default.aspx.vb Partial Public Class _Default Inherits System.Web.UI.Page Declare Auto Function GetRawData Lib "#DLL#" (ByVal filename() As Byte, _ ByVal byteArray() As Byte, _ ByVal length As Int32) As Int32 Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Load Dim buffer(10485760) As Byte Dim msg As String, length As Integer = 10485760 Dim filename As String = "#RAWDATAFILE#" length = GetRawData(Encoding.Default.GetBytes(filename), buffer, length)

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• Asterisk + FreePBX + GoTalk. Inbound route not working.

  - by user289581

  I'm running asterisk 1.6.2.6 and freepbx-2.7.0 My trunk is configured as follows: Outgoing Settings Trunk name: GoTalk Peer Details: host=sip.gotalk.com username=09xxxxxx secret=YNxxxxxx type=peer fromuser=09xxxxxx fromdomain=sip.gotalk.com canreinvite=no insecure=very Incoming Settings User Context: 09xxxxx User Details: username=09xxxxx fromuser=09xxxxx type=peer secret=YNxxxxx insecure=very host=dynamic fromdomain=sip.gotalk.com context=from-pstn Register String: 09xxxxxx:[email protected]/09xxxxxx I have an inbound route called Incoming with DID 09xxxxxx diverted to local extension 200 When I do a sip trace and dial my telephone number 0741xxxxx I just get failure beeps. I never see any SIP traffic from GoTalk to my asterisk server trying to connect the call. Seems I'm not registering correctly for incoming calls because GoTalk aren't sending them to me. I am correct in using the GoTalk username 09xxxxxx as the DID, aren't I ? I've tried using my phone number but it makes no difference.

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• Does async and await incease performance of an ASP.Net application

  - by Kerezo

  I recently read a article about c#-5 and new $ nice asynchronous programming. I see it works greate in windows application. The question came to me before is if this feature can increase ASP.Net performance? consider this code: public T GetData() { var d = GetSomeData(); return d; } and public async T GetData2() { var d = await GetSomeData(); return d; } Has in an ASP.Net appication that two codes difference? thanks

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• How are $LOAD_PATH and $: different?

  - by Benjamin Oakes

  I needed to know what was in my Ruby load path, so I did this: $ ruby -e "puts $LOAD_PATH" It didn't print anything out, which I didn't expect. So I tried this: $ ruby -e "puts $:" /usr/local/lib/site_ruby/1.8 /usr/local/lib/site_ruby/1.8/i486-linux /usr/local/lib/site_ruby/1.8/i386-linux /usr/local/lib/site_ruby /usr/lib/ruby/vendor_ruby/1.8 /usr/lib/ruby/vendor_ruby/1.8/i486-linux /usr/lib/ruby/vendor_ruby /usr/lib/ruby/1.8 /usr/lib/ruby/1.8/i486-linux /usr/lib/ruby/1.8/i386-linux . Why does the second one give me the expected output and the first one doesn't? Shouldn't they be the same? I just tried it in irb, and I got the results I expected. This is my Ruby version, in case it makes a difference: $ ruby --version ruby 1.8.7 (2008-08-11 patchlevel 72) [i486-linux]

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• How can creating the SessionFactory become slow after updating Hibernate?

  - by DR

  In my Java SE application I used Hibernate 3.4 and creating the SessionFactory took about 5 seconds. Today I updated to Hibernate 3.5.1 and suddenly it takes over a minute. What can be the cause of such a dramatic effect? I tried different things the better part of the day and I have no clue... Some data I collected According to the profiler the most time is spent in PersisterFactory.createClassPersister and in that method ProxyFactory.createClass takes the most time. The log shows nothing unusual Changing hibernate.bytecode.use_reflection_optimizer makes no difference

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• How to call object's method from constructor?

  - by Kirzilla

  Hello, var Dog = function(name) { this.name = name; this.sayName(); } Dog.prototype.sayName = function() { alert(this.name); } I'm creating new instance of Dog object, but method sayName() is undefined. Why? Or maybe I should do something like (but I can't see difference)... var Dog = function(name) { this.name = name; this.prototype.sayName = function() { alert(this.name); } } Thank you.

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• Is there a way to intersect/diff a std::map and a std::set?

  - by Jack

  I'm wondering if there a way to intersect or make the differences between two structures defined as std::set<MyData*> and std::map<MyData*, MyValue> with standard algorithms (like std::set_intersect) The problem is that I need to compute the difference between the set and the keyset of the map but I would like to avoid reallocating it (since it's something that is done many times per second with large data structures). Is there a way to obtain a "key view" of the std::map? After all what I'm looking is to consider just the keys when doing the set operation so from an implementation point it should be possible but I haven't been able to find anything.

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• Making a PHP object behave like an array?

  - by Mark Biek

  I'd like to be able to write a PHP class that behaves like an array and uses normal array syntax for getting & setting. For example (where Foo is a PHP class of my making): $foo = new Foo(); $foo['fooKey'] = 'foo value'; echo $foo['fooKey']; I know that PHP has the _get and _set magic methods but those don't let you use array notation to access items. Python handles it by overloading __getitem__ and __setitem__. Is there a way to do this in PHP? If it makes a difference, I'm running PHP 5.2.

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