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• Consolidating files in a single directory before you link them into the final executable

  - by David

  I am working on Solaris 10, Sun Studio 11. I am refactoring some old code, and trying to write unit tests for them. My make file looks like: my_model.o:my_model.cc CC -c my_model.cc -I/../../include -library=stlport4 -instances=extern unit_test: unit_test.o my_model.o symbol_dictionary.o CC -o unit_test unit_test.o my_model.o symbol_dictionary.o -I../../include \ -library=stlport4 -instances=extern unit_test.o: unit_test.cc CC -c unit_test.cc -I/../../include -library=stlport4 -instances=extern symbol_dictionary.o: cd ../../test-fixtures && ($MAKE) symbol_dictionary.o mv ../../test-fixtures/symbol_dictionary.o . In the ../../test-fixtures makefile, I have the following target: symbol_dictionary.o: CC -c symbol_dictionary.cc -I/../../include -library=stlport4 -instances=extern I do the instances=extern because I had linking problems before, and this was the recommended solution. The consequence is in each directory that is being compiled, a SunWS_Cache directory is created to store the template instances. This is the long way to get to this question. Is it a standard practice to consolidate object files in a single directory before you link them?

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• Zend Framework multiple databases

  - by Uffo

  I'm currently using only one database with Zend Framework, but now I have to add ONE MORE. I'm using this code right now: public static function setupDatabase() { $config = self::$registry->configuration; $db = Zend_Db::factory($config->db->adapter, $config->db->toArray()); $db->query("SET NAMES 'utf8'"); self::$registry->database = $db; Zend_Db_Table::setDefaultAdapter($db); } What code do I need to write in order to use ONE MORE database; and how I will reference it, when I need to make some queries or so.. Best Regards!

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• how can i set mTextView to show on button click

  - by Ajay Pandey

  i have a UITextView object which i have created in interface builder with it's hidden property unmarked.Now i want this textView to be invisible when my application launches and first view appears.Further i want it to be displayed when a particular method is called.Now this is what i have written in view did load [mTextView setHidden:YES]; self.mTextView=[[UITextView alloc] init]; it hides the textView ats the first view appears but when my desired method is called and i write [mTextView setHidden:NO]; it does not show it again.. Is it like we cant change the appearance of a textView once it is assigned because after assigning memory as self.mTextView=[[UITextView alloc] init]; and then writing [mTextView setHidden:YES]; it does not hide textView in viwDidLoad either.....

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• Rails form helpers: how to add an element to a collection?

  - by Laran Evans

  I have a keychain object. keychain has_many credentials. I'm trying to write the view code to add a new credential to a keychain. This is the code I have: <% form_for(@keychain) do |f| % <tr <td<%= f.select "credentials[]", current_account.services.collect{ |s| [s.friendly_name, s.id] } %</td <td<%= f.text_field 'credentials', :username %</td <td<%= f.password_field 'credentials', :password %</td </tr <% end % But it fails with this message: NoMethodError in Keychains#new Showing app/views/keychains/_keychain_form.html.erb where line #32 raised: undefined method `credentials[]' for # What am I doing wrong?

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• MySQL Locking table from Stored FUNCTION

  - by Brandon

  I have a function in a MySQL Database that determines some sync parameters for a mobile device. The function determines the last date/time the user synchronized with the database. During my sync operation I call this server side function twice. As soon as I call it the second time - the entire Sync_Records table is locked. I cannot write to it from any other connection anywhere (note, after first call, the table is not locked). I changed the function to a Procedure - and all is fine - no locking after the second call. The entire sync operation (including both calls to the function/procedure) is within a transaction. This is an InnoDb table. The function/procedure simply does two select statements. They are storing results in local variables and then returning the date time variable. I don't understand why the tables are locked. Does anyone have any ideas?

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• #include <string> adding ~43 KB to my exe

  - by Lienau

  I'm using Code::Blocks to write my program and when I include <string> (or <iostream>) the size of my exe grows. My program is very simple and I need to keep it small <20kb. I'm pretty sure this is happening because of the C++ Standards Committee swapped the old .h versions for many new libraries without the .h. But how would I keep it from adding the ~43kb? Are there settings for Code::Blocks so that it wont add the extra kb or is there another native lib I can use?

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• Adding a searchbar to display array items on a tableview?

  - by skiria

  I want to build an app that shows a empty tableview. Then users can write a text on a searchbar and when they click on Search button the tableview will be written with array items founded. I've see this tutorial: link text, but I only need to search when user click SearchButton. How can I do this? What methods do i have to use? I've tried with this method, but it doesn't works. - (void) searchBarSearchButtonClicked:(UISearchBar *)theSearchBar { NSInteger nVideos = [appDelegate.allVideos count]; NSLog(@"number of videos: %i", nVideos);

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• Finding a users maximum score and the associated details

  - by VolatileStorm

  I have a table in which users store scores and other information about said score (for example notes on score, or time taken etc). I want a mysql query that finds each users personal best score and it's associated notes and time etc. What I have tried to use is something like this: SELECT *, MAX(score) FROM table GROUP BY (user) The problem with this is that whilst you can extra the users personal best from that query [MAX(score)], the returned notes and times etc are not associated with the maximum score, but a different score (specifically the one contained in *). Is there a way I can write a query that selects what I want? Or will I have to do it manually in PhP?

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• Android XML file doesn't save

  - by Shane

  I'm writing a game with LibGDX, and I'm trying to save an XML file, but there's always an exception (java.io.FileNotFoundException: /data/Slugfest/teams/Team1.xml: open failed: ENOENT (No such file or directory)) when saving the file. This code saves the file. public void save() { try { TransformerFactory transformerFactory = TransformerFactory.newInstance(); Transformer transformer = transformerFactory.newTransformer(); DOMSource source = new DOMSource(doc); StreamResult result; if (Gdx.app.getType() == ApplicationType.Android) { result = new StreamResult(new File("/data/Slugfest/teams/" + name + ".xml")); } else { result = new StreamResult(new File(name + ".xml")); } transformer.transform(source, result); Gdx.app.log("Slugfest", "File saved."); } catch (TransformerException tfe) { Gdx.app.log("Slugfest", tfe.getLocalizedMessage()); } } My manifest file includes the WRITE/READ_EXTERNAL_STORAGE permissions, by the way.

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• Javascript push Object to cookies using JSON

  - by Hunkeone

  Hi All on click button I need to add object to array and then write array to cookies. From the start this array can be not empty so I parse cookie first. function addToBasket(){ var basket = $.parseJSON($.cookie("basket")) if (basket.length==0||!basket){ var basket=[]; basket.push( { 'number' : this.getAttribute('number'), 'type' : this.getAttribute('product') } ); } else{ basket.push( { 'number' : this.getAttribute('number'), 'type' : this.getAttribute('product') } ); } $.cookie("basket", JSON.stringify(basket)); } And HTML <button type="button" class="btn btn-success btn-lg" number="12" product="accs" onclick="addToBasket()">Add</button> Unfortunately I'm getting Uncaught ReferenceError: addToBasket is not defined onclick. Can't understand what am I doing wrong? Thanks!

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• Is it hard problem?

  - by Lukasz Lew

  I can't solve it: You are given 8 integers: A, B, C representing a line on a plane with equation A*x + B*y = C a, b, c representing another line x, y representing a point on a plane The two lines are not parallel therefore divide plane into 4 pieces. Point (x, y) lies inside of one these pieces. Problem: Write a fast algorithm that will find a point with integer coordinates in the same piece as (x,y) that is closest to the cross point of the two given lines. Note: This is not a homework, this is old Euler-type task that I have absolutely no idea how to approach.

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• Turing's Craft exercise stumped me... seems too easy.

  - by Chris

  "Write a for loop that prints the integers 1 through 40, separated by spaces or new lines. You may use only one variable, count which has already been declared as an integer." So I use... for(count = 1; count <= 40; count++) { cout << " " << count; } but they are using stdio.h as the only header and cout is not recognized. It hints that the output format should be (" ",count), but I can't figure out what print function to use. stdio.h can use fprintf or fwrite, but I don't have enough parameters for either function. Any ideas?

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• build a chrome extension in order to upload images (from clipboard)

  - by dayscott

  I wanted to write a simple chrome extension in order to substitute the following sequence of steps which i have to do very often for university: make screenshot of something edit screenshot in Paint save unnamend.png to harddrive upload unnamed.png to imageshack.us/pic-upload.de or any other website share link of image with others. I don't care which image upload service to use, i just want automize this use-case in order to save time (I already red and did a getting-started chrome extension and checked out their API, but that's it, this page: http://farter.users.sourceforge.net/blog/2010/11/20/accessing-operating-system-clipboard-in-chromium-chrome-extensions/ seemed useful, but i couldn't make it overwrite my systems clipboard - moreover i can't find a tutorial which helps me further).

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• Available options for hosting FTP server in .NET application

  - by duane

  I need to implement an FTP service inside my .NET application (running as a Windows Service) and have not had much luck finding good/current source code or vendors. Ideally it needs to be able to respond to the basic FTP Protocol and accept the data stream from an upload via a stream, enabling me to process the data as it is being received (think on the fly hashing). I need to be able to integrate it into my service because it will stack on top of our current code base with an existing custom TCP/IP communication protocol. I don't want to write (and then spend time debugging and performance testing) my own protocol, or implementation. I have already found plenty of ftp client implementations, I just need an acceptable server solution.

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• Convert Text with newlines to a List<String>

  - by Vaccano

  I need a way to take a list of numbers in string form to a List object. Here is an example: string ids = "10\r\n11\r\n12\r\n13\r\n14\r\n15\r\n16\r\n17\r\n18\r\n19"; List<String> idList = new List<String>(); idList.SomeCoolMethodToParseTheText(ids); <------+ | foreach (string id in idList) | { | // Do stuff with each id. | } | | // This is the Method that I need ----------------+ Is there something in the .net library so that I don't have to write the SomeCoolMethodToParseTheText myself?

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• Exposing an ISO C++ class to C#

  - by Stick it to THE MAN

  I need to expose some C++ classes to C# (I am building on Linux, using mono, so COM is not an option) The evidence I have gathered so far suggests that the best way to approach this is: Write a wrapper C++.Net class around the ISO C++ class Consume the C++.Net classes from C# I have the following questions: First, is this the "best" way of achieving the goal of exposing ISO C++ classes to C# ? So far though, I have not seen any examples that actually show how to do this - can anyone suggest some links, or a code snippet to show how this is done for a dummy class? How may I send asynchronous message notifications from the C++ code to the C# code ?. Ideally, I would like to cause the C# class to raise an event, with the received data as an argument

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• Python __setattr__ and __getattr__ for global scope?

  - by KT

  Suppose I need to create my own small DSL that would use Python to describe a certain data structure. E.g. I'd like to be able to write something like f(x) = some_stuff(a,b,c) and have Python, instead of complaining about undeclared identifiers or attempting to invoke the function some_stuff, convert it to a literal expression for my further convenience. It is possible to get a reasonable approximation to this by creating a class with properly redefined __getattr__ and __setattr__ methods and use it as follows: e = Expression() e.f[e.x] = e.some_stuff(e.a, e.b, e.c) It would be cool though, if it were possible to get rid of the annoying "e." prefixes and maybe even avoid the use of []. So I was wondering, is it possible to somehow temporarily "redefine" global name lookups and assignments? On a related note, maybe there are good packages for easily achieving such "quoting" functionality for Python expressions?

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• POSIX Threads and signal masks

  - by Max

  Is there a way to change the signal mask of a thread from another thread? I am supposed to write a multithreaded C application that doesn't use mutex, semaphores and condition variables, only signals. So it would look like something like this: The main Thread sends SIGUSR1 to its process and and one of the 2 threads (not including the main thread), will respond to the signal and block SIGUSR1 from the sigmask and sleep. Then the main thread sends SIGUSR1 again, the other thread will respond, block SIGUSR1 from its sigmask, unblock SIGUSR1 from the other threads sigmask, so it will respond to SIGUSR1 again. So essentially whenever the main thread sends SIGUSR1 the two other threads swap between each other. Can somebody help?

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• Access to the path Server.MapPath is denied

  - by Alex

  I created one pdf document var document = new Document(); string path = Server.MapPath("AttachementToMail"); PdfWriter.GetInstance(document, new FileStream(path + "/"+DateTime.Now.ToShortDateString()+".pdf", FileMode.Create)); Now I want to download this document Response.ContentType = "Application/pdf"; Response.AppendHeader("Content-Disposition", "attachment; filename="+ DateTime.Now.ToShortDateString() + ".pdf" + ""); Response.TransmitFile(path); Response.End(); but it gave me error Access to the path '~\AttachementToMail' is denied. read / write access for IIS_IUSRS exists

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• Get Rails to save a record to the database in a non-UTC time

  - by Shaun

  Is there a way to get Rails to save records to the database without it automagically converting the timestamp into UTC before saving? The problem is that I have a few models that pull data from a legacy database that saves everything in Mountain Time and occasionally I have to have my Rails app write to that database. The problem is that every time it does, it converts the time I give it from Mountain Time to UTC, which is 6-7 hours ahead (depending on DST)! Needless to say, this really messes with reporting on that database. If I could get around doing this, I would. Unfortunately, I can't do anything about the fact that this other database uses a different timezone, nor can I really get away from the need for this app to save to that database occasionally. If I could just get Rails to stop trying to help me, it'd be great.

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• C++ networking simple send and receive

  - by Wallter

  I'm trying to link 10 computers together, the program i would like to write would have one 'control' computer. From what I've looked up this computer would take all the packets sent over the network and do a echo with them... right? The other computers would need to be able to send information (then echoed to the others) to the 'control' ... is there a easy! or simple way to do this? From what I've seen i want a non-blocking socket? I have looked into sockets and such but for an armature programmer like me, this seems like a daunting task :) I'm kind-of looking for an easy class implication that has a send() and an event driven recv(). I'm not going to be sending that much information over the network.

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• MPI Large Data all to all transfer

  - by csslayer

  My application of MPI has some process that generate some large data. Say we have N+1 process (one for master control, others are workers), each of worker processes generate large data, which is now simply write to normal file, named file1, file2, ..., fileN. The size of each file may be quite different. Now I need to send all fileM to rank M process to do the next job, So it's just like all to all data transfer. My problem is how should I use MPI API to send these files efficiently? I used to use windows share folder to transfer these before, but I think it's not a good idea. I have think about MPI_file and MPI_All_to_all, but these functions seems not to be so suitable for my case. Simple MPI_Send and MPI_Recv seems hard to be used because every process need to transfer large data, and I don't want to use distributed file system for now.

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• Loop and ListView

  - by monomi

  I find a match with Regexp. How to correctly organize a loop, if more than one match and write it in the ListView? listAlbums = (ListView)findViewById(R.id.listAlbums); ... Pattern patternNameToId = Pattern.compile(kRegexp); String nameTo = "" Matcher matcherName = patternNameToId.matcher(response); if (matcherName.find()) { nameTo = matcherTopicTitle.group(2); albumsList = new ArrayList<String>(); albumsList.add(nameTo); ArrayAdapter<String> adapter = new ArrayAdapter<String>(context, android.R.layout.simple_list_item_1, albumsList); listAlbums.setAdapter(adapter); } else Toast.makeText(context, "?? ???????", Toast.LENGTH_LONG).show();

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• Java, JavaCC: How to check if a char (or char pair) is inside a given UTF32 range?

  - by java.is.for.desktop

  Hello, everyone! I am referring to the XML 1.1 spec. Look at the definition of NameStartChar: NameStartChar ::= ":" | [A-Z] | "_" | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] | [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF] If I interpret this correctly, the last range (#x10000-#xEFFFF) goes beyond the UTF16 range of Java's char type. So it must be UTF32, right? So, I need to check pairs of char against this range, instead of single chars, right? My questions are: How do I check for such character ranges using standard Java methods? How is it possible to define such ranges in JavaCC? JavaCC complains about \u10000 and \uEFFFF Thank you! NOTE: Don't worry, I am not trying to write an own XML-parser. I need those character ranges for other reasons.

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• Regular expressions in a Python find-and-replace script?

  - by Haidon

  I'm new to Python scripting, so please forgive me in advance if the answer to this question seems inherently obvious. I'm trying to put together a large-scale find-and-replace script using Python. I'm using code similar to the following: findreplace = [ ('term1', 'term2'), ] inF = open(infile,'rb') s=unicode(inF.read(),charenc) inF.close() for couple in findreplace: outtext=s.replace(couple[0],couple[1]) s=outtext outF = open(outFile,'wb') outF.write(outtext.encode('utf-8')) outF.close() How would I go about having the script do a find and replace for regular expressions? Specifically, I want it to find some information (metadata) specified at the top of a text file. Eg: Title: This is the title Author: This is the author Date: This is the date and convert it into LaTeX format. Eg: \title{This is the title} \author{This is the author} \date{This is the date} Maybe I'm tackling this the wrong way. If there's a better way than regular expressions please let me know! Thanks!

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