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• How do you get subversion diff summary to ignore mergeinfo properties?

  - by tolomea

  I have subversion 1.6.5 client and 1.5.4 server. And I mostly only care about diffs on fully repository paths, not working copies. When diffing branches ones that have been merged already show up as identical except for the mergeinfo properties. This is a touch annoying for a human who has to then look through the changes looking for anything that might be a real change. However it's somewhat worse in out use case as we have scripts that run around checking on the merge state of various things and the mergeinfo properties cause them to highlight a lot of things as being out of sync when they aren't. Is there a way to get the diff summary to ignore the mergeinfo properties?

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• CFLAGS vs CPPFLAGS

  - by EB

  I understand that CFLAGS (or CXXFLAGS for C++) are for the compiler, whereas CPPFLAGS is used by the preprocessor. But I still don't understand the difference. I need to specify an include path for a header file that is included with #include -- because #include is a preprocessor directive, is the preprocessor (CPPFLAGS) the only thing I care about? Under what circumstances do I need to give the compiler an extra include path? In general, if the preprocessor finds and includes needed header files, why does it ever need to be told about extra include directories? What use is CFLAGS at all? (In my case, I actually found that BOTH of these allow me to compile my program, which adds to the confusion... I can use CFLAGS OR CPPFLAGS to accomplish my goal (in autoconf context at least). What gives?)

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• Why do mainframe greybeards refer to DB2/zOS as "he"? [closed]

  - by Alex Nauda

  If you ask a DB2/zOS engine DBA a question about DB2's behavior, the DBA will refer to the DB2 engine as "he" much the way a sailor uses "she" to refer to his ship. For example: "Once you fill the freespace, DB2 still wants to keep those rows in cluster order in the tablespace. That's why he'll split that page in half, and you end up with lots of half-empty pages. That is, unless the cluster key of the row you've just inserted is the highest in the table, in which case he makes a new empty page, and he puts just your new row into that page. So I wouldn't have to do this REORG if you would just sort your input like I suggested." Does anyone know where this tradition comes from?

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• How to scale MongoDB

  - by terence410

  I know that MongoDB can scale vertically. What about if I running out of disk? I am currently using EC2 with EBS. As you know, I have to assign EBS for a fixed size. What if the mongodb growth bigger than the EBS size? Do I have to create a larger EBS and Copy & Paste the files? Or shall we start more MongoDB instance and each connect to different EBS disk? In such case, I could connect to a different instance for different databases.

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• subversion merge back to trunk

  - by Berryl

  I set up a branch several weeks ago. When some changes were made to the trunk, SVN was committing to the branch, and not the trunk. The changes were minor and applicable to the branch anyway, so I assumed this is how the branch should work. Now that the branch work is finished, I merged back the branch back to my working trunk, assuming SVN would replace the old trunk with the new branch in the repository as well. That is not the case though. My repository trunk is out of date. I would like to make the repository trunk be same as the branch and then delete the branch. How can I do this? Cheers, Berryl Note: I am using tortoise / visualvsn client.

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• close camera application in blackberry

  - by user324884

  I need to close camera when a file is taken from camera. I invoke camera by Invoke method and added FileJournalListener and then use Inject.post. But it si working fine in simulator and but not working in actual device. any Idea. ....... case FileSystemJournalEntry.FILE_ADDED: filepath=path; EventInjector.KeyEvent inject = new EventInjector.KeyEvent(EventInjector.KeyEvent.KEY_DOWN,Characters.ESCAPE, 50); inject.post(); inject.post(); ............

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• page transitions using javascript

  - by hasan

  hey, i saw this on a site a couple of days ago and i cant seem to find it again. in any case, this is what was on the site: the page opened regularly when you entered the url. upon clicking one of the links on the page, it "transitioned" to the next page (there was a color change). and the url in the address bar was changed to reflect that. eg: if the background was blue on site.com, when clicking on the about link, the background would change to green and the browser would show site.com/about. and so on. also, if the url entered was site.com/about, the bg would be green and on cliking the home page, the site would transition from green to blue and browser would show site.com im interested in finding out how this was done. searching on google got me the meta-refresh tag, but the ffect was much more complex and worked on all browsers. is there any other method out there?

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• MongoDB - how to join parent and child products by reference

  - by Jaro

  my mongo collection stores products. There are two product types: child and parent. Parent product holds array of its child as reference. Use case: use mydb; child1 = { _id: 1, name: "Child 1", is_child: true, is_parent: false, children : [] } child2 = { _id: 2, name: "Child 2", is_child: true, is_parent: false, children : [] } parent = { _id: 3, name: "Parent product", is_child: false, is_parent: true, children : [1, 2] } db.product.insert( [child1, child2, parent] ); And I'm looking for any query returning { _id: 3, name: "Parent product", is_child: false, is_parent: true, children: [ { _id: 1, name: "Child 1", is_child: true, is_parent: false, children : [] }, { _id: 2, name: "Child 2", is_child: true, is_parent: false, children : [] } ] } I'm newbie to mongodb, but I guess an usage of map-reduce could solve the problem. Can anyone advice? Thx

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• Getting Wikipedia infoboxes in a format that Ruby can understand

  - by hadees

  I am trying to get the data from Wikipedia's infoboxes into a hash or something so that I can use it in my Ruby on Rails program. Specifically I'm interested in the Infobox company and Infobox person. The example I have been using is "Ford Motor Company". I want to get the company info for that and the person info for the people linked to in Ford's company box. I've tried figuring out how to do this from the Wikipedia API or DBPedia but I haven't had much luck. I know wikipedia can return some things as json which I could parse with ruby but I haven't been able to figure out how to get the infobox. In the case of DBPedia I am kind of lost on how to even query it to get the info for Ford Motor Company.

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• Converting String^ and Collection of String^ to const char*

  - by Jim Jones

  Using VS2008 Managed C++ to wrap a dll. The native method takes a series of single const char* values and a collection of char* values. Going to make an example function: Function1(char * value1, TF_StringList& catList); TF_StringList is a dll class with 3 insert methods, the one I want to use is: TF_StringList::insert(const char* str); So I set up a wrapper method of: WrapperClass::callFunction(String^ mvalue1, ArrayList mcatList); mvalue1 is converted to const char* using: const char* value1 = (char*)(Marshal::StringToHGlobalAnsi(mvalue1)).ToPointer(); However, when a get to the collection of strings, I iterate over it getting each string using the index: String^ mstr = mcatList[i]; Have tried every way of converting String^ to const char* and in every case the TF_StringList::insert(const char* str) method throws a C2663 error which has to do with the const-ness of the value. What is the problem?

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• Sandcastle setup - Navigation to webpage was canceled.

  - by Prof Plum

  I am try to use Sandcastle Help File Builder, but can't quite get it to work. Here is what I have done: 1) installed the program; works like normal 2) enabled xml in the project I want documentation for that gets generated in the /bin 3) created a new sandcastle help file project 4) added the C# project as (its a WCF service in case that matters) a documentation service 5) ran the "build" to generate the help file 6) went to "documentation"/"view help file"/"view help file" in the GUI 7) The file opens and contains the appopriate "folders", but every page says "Navigation to the webpage was canceled" I have seen the xml file in the /bin and it contains all of my /// comments, so why are they not showing up in the help file? Any ideas?

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• need identical string comparison function in php and java

  - by steelbytes

  I have sorted list of strings that I move between php and java. to be able to bsearch on this data, I need the same comparison function. any idea what string compare functions I can use that will always give the same result in both? eg php's strcmp() vs java's String.compareTo() yes I know I could make my own string compare that does char by char carefully, but I was hoping there's a simple answer. PS, don't care if case sensitive or not, as long as it is consistant.

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• SQL Server - CAST AND DIVIDE

  - by rs

  DECLARE @table table(XYZ VARCHAR(8) , id int) INSERT INTO @table SELECT '4000', 1 UNION ALL SELECT '3.123', 2 UNION ALL SELECT '7.0', 3 UNION ALL SELECT '80000', 4 UNION ALL SELECT NULL, 5 SELECT CASE WHEN PATINDEX('^[0-9]{1,5}[\.][0-9]{1,3}$', XYZ) = 0 THEN XYZ WHEN PATINDEX('^[0-9]{1,8}$',XYZ) = 0 THEN CAST(XYZ AS decimal(18,3))/1000 ELSE NULL END FROM @table This part - CAST(XYZ AS decimal(18,3))/1000 doesn't divide value it gives me more number of zeros after decimal instead of dividing it. (I even enclosed that in brackets and tried but same result) Am i doing something wrong here?

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• Batch INSYNC help needed...

  - by Raja Reddy

  I have a INSYNC batch to 'extract' certain conditioned data output. For instance, below insync code extracts the data if 44 pos has a value of '25'. Question here is, I wanna get the output in a sorted manner based on a particular field. Can we incorporate the SORT criteria below. Suggestions are really appreciated. FUNCTION=EXTRACT INDD=#INDD OUTDD=#OUTDD RDW=OFF LINESPERPAGE=080 CASE SEARCHDATA=(00044,002,EQ,C'25') ENDCASE PS: We can achieve the same by means of SORT utility through 'SORT FIELDS' parameter.

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• Does MATLAB perform tail call optimization?

  - by Shea Levy

  I've recently learned Haskell, and am trying to carry the pure functional style over to my other code when possible. An important aspect of this is treating all variables as immutable, i.e. constants. In order to do so, many computations that would be implemented using loops in an imperative style have to be performed using recursion, which typically incurs a memory penalty due to the allocation a new stack frame for each function call. In the special case of a tail call (where the return value of a called function is immediately returned to the callee's caller), however, this penalty can be bypassed by a process called tail call optimization (in one method, this can be done by essentially replacing a call with a jmp after setting up the stack properly). Does MATLAB perform TCO by default, or is there a way to tell it to?

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• Why does an onclick property set with setAttribute fail to work in IE?

  - by Aeon

  Ran into this problem today, posting in case someone else has the same issue. var execBtn = document.createElement('input'); execBtn.setAttribute("type", "button"); execBtn.setAttribute("id", "execBtn"); execBtn.setAttribute("value", "Execute"); execBtn.setAttribute("onclick", "runCommand();"); Turns out to get IE to run an onclick on a dynamically generated element, we can't use setAttribute. Instead, we need to set the onclick property on the object with an anonymous function wrapping the code we want to run. execBtn.onclick = function() { runCommand() }; BAD IDEAS: You can do execBtn.setAttribute("onclick", function() { runCommand() }); but it will break in IE in non-standards mode according to @scunliffe. You can't do this at all execBtn.setAttribute("onclick", runCommand() ); because it executes immediately, and sets the result of runCommand() to be the onClick attribute value, nor can you do execBtn.setAttribute("onclick", runCommand);

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• GIS: When and why to use ArcObjects over GDAL programming to work with ArcGIS rasters and vectors?

  - by anotherobject

  Im just starting off with GDAL + python to support operations that cannot be done with ArcGIS python geoprocessing scripting. Mainly I am doing spatial modeling/analysis/editing of raster and vector data. I am a bit confused when ArcObject development is required versus when GDAL can be used? Is there functionality of ArcObjects that GDAL does not do? Is the opposite true too? I am assuming that ArcObjects are more useful in developing online tools versus Desktop analysis and modeling where the difference is more to do with preference? In my case i prefer GDAL because of python support, which I believe ArcObjects lack. thanks!

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• How to make if loop in grails?

  - by user3569696

  I'm beginner in Grails, please help. I have this in my gsp <div class="right66"> <g:select class="time_pick" name="pick_day" placeholder="" from="${['Dani', 'Sati', 'Minute']}" valueMessagePrefix="book.category"/> </div> In translation: Dani=Days, Sati= Hours, Minute= Minutes. I need to save data in minutes but User have privilege to choose will his input be in minutes, days or hours. So i have to do if loop. I now how if loop works but i don't know how to wite it in grails. I was thinking something like this: n=1 if(params.type=Dani){ n= 3600 }else if(params.type=Sati) { n=60 } def minute=params.minute*n but how to call that choosen input "Dani"? I can't write Params.type=Dani. Does if loop go in controller in my case?

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• How to search for "R" materials?

  - by James Lavin

  "The Google" is very helpful... unless your language is called "R," in which case it spits out tons of irrelevant stuff. Anyone have any search engine tricks for "R"? There are some specialized websites, like those below, but how can you tell Google you mean "R" the language? If I'm searching for something specific, I'll use an R-specific term, like "cbind." Are there other such tricks? http://rweb.stat.umn.edu/R/doc/html/search/SearchEngine.html www.rseek.org http://search.r-project.org/ www.dangoldstein.com/search_r.html

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• pitchbend (varispeed) audio with iPhone SDK's AudioUnit

  - by fetzig

  hi, I'm trying to manipulate the speed (and pitch) of a sound while playing. so i played around with iphone sdk's AudioUnit. downloaded iPhoneMultichannelMixerTest and tried to add an AUComponent to the graph (in this case a formatconverter). but i get (pretty soon) following error when building: #import <AudioToolbox/AudioToolbox.h> #import <AudioUnit/AudioUnit.h> ... AUComponentDescription varispeed_desc(kAudioUnitType_FormatConverter, kAudioUnitSubType_Varispeed, kAudioUnitManufacturer_Apple); ^^ error: 'kAudioUnitSubType_Varispeed' was not declared in this scope. any ideas why? the documentation on this topic doesn't help me at all (just api doc isn't very helpful when having no clue about the concept behind). there are no examples on how to wire these effects together and manipulating there properties...so maybe i'm totally wrong, anyway any hint is great. thx for help.

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• MembershipUser class CreateUser password paramter

  - by d3020

  I'm using the ASP.NET Configuration for my users and their roles. I'm also using the MembershipUser class with its function CreateUser. I have it working, but was curious about something. When I add a new user and pass this function its password parameter (which in this case is coming from a textbox on the page). It seems like it only finds and accepts that textbox value when it is 6 chars or more. For example, if I type in ab123 it'll say object not set to instance of an object. However if I do abc123 it works fine. Where is that being told to do that. I didn't know if this was something I could change or where it might be doing that. Thanks.

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• Is the javaScript not part of the DOM?

  - by DKinzer

  Why is it that scripts can still function even after the code used to create them is removed from the DOM? I ran into a situation where I wanted to prevent a broken script from running (@see my post). In my attempt to come up with a solution I wrote an extension with the following line (just to see what would happen). //doc is passed here because this script is running as a firefox extension outside //of the document context. $('script', doc).remove(); I assumed that this would remove all the scripts from the DOM, which it did, and that therefore no scripts would run on the page, which is not the case. I would love to know more about what's behind this behavior.

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• Linux Kernel - Slab Allocator Question

  - by Drex

  I am playing around with the kernel and am looking at the kmem_cache files_cachep belonging to fork.c. It detects the sizeof(files_struct). My question is this: I have altered files_struct and added a rb_root (red/black tree root) using the built-in functionality in linux/rbtree.h. I can properly insert values into this tree. However, at some point, a segfault occurs and GDB backtraces the following information: (gdb) backtrace 0 0x08066ad7 in page_ok (page=) at arch/um/os-Linux/sys-i386/task_size.c:31 1 0x08066bdf in os_get_top_address () at arch/um/os-Linux/sys-i386/task_size.c:100 2 0x0804a216 in linux_main (argc=1, argv=0xbfb05f14) at arch/um/kernel/um_arch.c:277 3 0x0804acdc in main (argc=1, argv=0xbfb05f14, envp=0xbfb05f1c) at arch/um/os-Linux/main.c:150 I have spent many hours trying to figure out why there is a segfault given that the red/black tree inserts properly. I'm thinking it's a memory allocation issue with new processes made by fork() of a parent process. Could this be the case and could it have something to do with kmem_cache files_cachep?

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• referencing ints from other classes

  - by user357032

  if i wanted to reference an int from another class how would i go about doing that??? public class Zoom extends View { private Drawable image; public int zoomControler=20; public Zoom(Context context) { super(context); image=context.getResources().getDrawable(R.drawable.icon); setFocusable(true); } @Override protected void onDraw(Canvas canvas) { // TODO Auto-generated method stub super.onDraw(canvas); image.setBounds((getWidth()/2)-zoomControler, (getHeight()/2)-zoomControler, (getWidth()/2)+zoomControler, (getHeight()/2)+zoomControler); image.draw(canvas); } } class HelloOnTouchListener implements OnTouchListener{ @Override public boolean onTouch(View arg0, MotionEvent arg1) { return true; } } in this case i want to reference the zoomControler from the first class in the second helloontouchlistener class

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• How would you start automating my job? - Part 2

  - by Jurily

  (Followup to this question) After surviving the first wave of incoming shipments (9 hours of copy/paste), I now believe I have all the requirements. Here is the updated workflow: Monkey collects email attachments (4 Excel spreadsheets, 1 PDF) Monkey creates central database, does complex calculations (right now this is also an Excel spreadsheet) Monkey sends data to two bosses, who set the retail prices independently; first one to reply wins Monkey sends order form to our other warehouses, also Excel Monkey sends spreadsheets to VIP customers, carefully sanitized and formatted (4 different discount categories) Jurily enters the data into the accounting system. I've given up on automating this part, there's too much business logic involved, and the database is a pile of sh^W legacy My question: What technologies would you use for a quick and dirty solution? I'm mostly sold on C#, but coming from a Linux/C++ background, I'm horribly confused about my choices in Microsoft-land. For bonus points: How would you redesign the whole system from the ground up? P.S. in case you were wondering, my job title is System Administrator.

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