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• how to separate debug and release mode code

  - by john

  during debug mode or while i am doing testing, i need to print lost of various information, so i use this method ifdef TESTING // code with lots of debugging info else // clean code only endif // TESTING` Is this the good method, or is there any other simple and elegant method. But this way, I am repating the same code in two places and if anything is to be changed later on in the code, I have to do it in both places, which is time consuming and error prone. Thanks. I am using MS Visual Studio.

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• Having trouble understanding some code (Ruby on Rails)

  - by user284194

  I posted a question awhile ago asking how I could limit the rate at which a form could be submitted from a rails application. I was helped by a very patient user and their solution works great. The code was for my comments controller, and now I find myself wanting to add this functionality to another controller, my Messages controller. I immediately tried reusing the working code from the comments controller but I couldn't get it to work. Instead of asking for the working code, could someone please help me understand my working comment controller code? class CommentsController < ApplicationController #... before_filter :post_check def record_post_time cookies[:last_post_at] = Time.now.to_i end def last_post_time Time.at((cookies[:last_post_at].to_i rescue 0)) end MIN_POST_TIME = 2.minutes def post_check return true if (Time.now - last_post_time) > MIN_POST_TIME flash[:warning] = "You are trying to reply too fast." @message = Message.find(params[:message_id]) redirect_to(@message) return false end #... def create @message = Message.find(params[:message_id]) @comment = @message.comments.build(params[:comment]) if @comment.save record_post_time flash[:notice] = "Replied to \"#{@message.title}\"" redirect_to(@message) else render :action => "new" end end def update @message = Message.find(params[:message_id]) @comment = Comment.find(params[:id]) if @comment.update_attributes(params[:comment]) record_post_time redirect_to post_comment_url(@message, @comment) else render :action => "edit" end end #... end My Messages controller is pretty much a standard rails generated controller with a few before filters and associated private methods for DRYing up the code and a redirect for non existent pages. I'll explain how much of the code I understand. When a comment is created, a cookie is created with a last_post_time value. If they try to post another comment, the cookie is checked if the last one was made in the last two minutes. If it was a flash warning is displayed and no comment is recorded. What I don't really understand is how the post_check method works and how I can adapt it for my simpler posts controller. I thought I could reuse all the code in the message controller with the exception of the line: @message = Message.find(params[:message_id]) # (don't need the redirect code) in the post_check method. But it trips up on the "record_post_time" in the create action/method. I really want to understand this. Can someone explain why this doesn't work? I greatly appreciate you reading my lengthy question.

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• Access varialbe from code behind via jQery

  - by Morron

  Hi, I have the following code that I want to return to a variable "t" in jQery: Code behind: Public Shared Function GetSomeText() As String Dim result = "This is from code behind" Return result End Function Caller variable in jQuery: //This is not working like that, I think var t = GetSomeText(); So, how can I make variable "t" get the "result" from Function GetSomeText from code-behind? Thank you.

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• c code compiles but is not executed in kubuntu

  - by yurib

  I'm running kubuntu 9.10 in VirtualBox, i wrote the simplest "hello world" program in C, the code compiles, i ran it through a debugger and it seems to run fine. the only problem is nothing gets actually printed to the console... any ideas ? heres the code: #include <stdlib.h> int main (int argc, char **argv) { printf("hello world"); return 0; }

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• JavaScript code compression

  - by Yashwant Chavan

  Is there is way to compress JavaScript code? e.g. function test(){ // some code here } after compression it should be function test(){//some code here} Also, I need vise versa at the time of editing the code.

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• Library to write javascript code

  - by Melursus

  Is there a c# library that can help to write and indent Javascript code. It's because I'm writing some c# code that generated some Javascript code. Something like this : js += "<script type=\"text/javascript\">\n"; js += " function()...\n"; And I find that generated a lot of ugly code. So, I thought that maybe a existing library can help me doing that ?

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• Will php code exit after echo for ajax?

  - by Steve

  I am running a typical php-engined ajax webpage. I use echo to return a html string from the php code. My question is, if I have some other code after the echo, will those code get executed? Or echo behaves similar to exit, which immediately return and stop running the php code? Thanks.

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• How to split mobile number into country code, area code and local number?

  - by Vivart

  How to split mobile number into country code, area code and local number? e.g +919567123456 after split country code = 91 area code = 9567 local number = 123456

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• Can anyone tell me whats wrong with this htaccess code

  - by mathew

  I am not able to get through with this code...I need to capture the request but with this code I am able to redirect but it cannot find the particular search page. RewriteCond %{THE_REQUEST} ^[A-Z]+\ /searcha\.php\?name=(www\.)?([^/\ ]+)[^\ ]*\ HTTP/ RewriteRule ^.*$ http://www.mydomain.com/%2? [R=301,L] can any one tell me what is I am missing??

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• Mixed declarations and code in open source projects?

  - by Eduardo

  Why is still C99 mixed declarations and code not used in open source C projects like the Linux kernel or GNOME? I really like mixed declarations and code since it makes the code more readable and prevents hard to see bugs by restricting the scope of the variables to the narrowest possible. This is recommended by Google for C++. For example, Linux requires at least GCC 3.2 and GCC 3.1 has support for C99 mixed declarations and code

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• Debugging with cgdb -- want to debug only my code

  - by rkbang

  Hello all, I am using standard template libraries along with boost. I want to debug code using cgdb. But I just want to debug my code while doing next and step in cgdb, like right now it enters the code in other libraries whereas I want it should just return or step into the code which I have coded and wrote down. Is there any way to make this happen.

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• How to get status code(409 for conflict) and message("your code is conflict") through falut event in

  - by Ankur

  I am calling a server method through HTTPService from client side and in response i am sending sending status code(409 for conflict) and message("your code is conflicted") from serverside on error but on client side in fault event i am getting status code 0 and message = "faultCode:Server.Error.Request faultString:'HTTP request error' faultDetail:'Error: [IOErrorEvent type="ioError" bubbles=false cancelable=false eventPhase=2 text="Error #2032: Stream Error. URL:" I want to know how to get the actual status code and message in fault event.

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• Are there any inherent benefits or drawbacks to choosing Google Code vs. SourceForge vs. Codeplex?

  - by kdmurray

  I've got a couple of different projects that I'd like to post up as open source. I've been trying to decide which of the three big open-source project hosting sites makes the most sense, or if I should just host it myself. Are there any inherent drawbacks or benefits to these three? Is there a "best" place to host a project? Do different sites make more sense for different kinds of projects?

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• Check DVD region code from command line

  - by Unreason

  Is there a way to get DVD region code from command line (linux/ubuntu 9.10)? I want to script this action and store the region code (and other data about DVD) in a log.

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• WPF button click in C# code

  - by KMC

  I have an array of button which is dynamically generated at run time. I have the function for button click in my code, but I can't find a way to set the button's click name in code. So, what is the code equivalent for XAML: <Button x:Name="btn1" Click="btn1_Click"> Or, what should I place for "????" in the following Code: Button btn = new Button()btn.Name = "btn1";btn.???? = "btn1_Click";

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• Partial coverage of a return statement in C++/CLI

  - by brickner

  I have C++/CLI code and I'm using Visual Studio 2008 Team Suite Code Coverage. The code header: // Library.h #pragma once #include <string> using namespace System; namespace Library { public ref class MyClass { public: static void MyFoo(); static std::string Foo(); }; } The code implementation: #include "Library.h" using namespace Library; using namespace System; void MyClass::MyFoo() { Foo(); } std::string MyClass::Foo() { return std::string(); } I have a C# unit test, that calls MyClass.MyFoo(): [TestMethod] public void TestMethod1() { Library.MyClass.MyFoo(); } For some reason, I don't get a full code coverage for MyClass. The Foo() method has 3 uncovered blocks and 5 covered blocks. The closing curly brackets (}) are marked in orange - partially covered. I have no idea why is it partially covered instead of fully covered, and this is my question.

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• Creating semaphores with unmanaged code in C++

  - by Dororo

  I've been using the MSDN Library to create semaphores, located at: http://msdn.microsoft.com/en-us/library/system.threading.semaphore.aspx However, the examples are using Managed code (requires /clr), and I need to use Unmanaged code because FreeType doesn't like working with Managed code it seems. How would I go about creating 2 simple threads which use a semaphore if I'm using unmanaged code? Many thanks for your help.

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• how many lines of code does my class library have

  - by zachary

  for metrics reasons I need to know how many lines of code my class library has. I'm doing this for code coverage.... So if Class library 1 has 50 lines of code and 100% coverage And if Class library 2 has 500 lines of code and 0% coverage My total coverage is 90% Any idea how to do this? Is there a utility or a way to use Visual Studio?

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• Sample code for POST + cookie?

  - by OverTheRainbow

  Hello, I've been googling for some VB.Net code to authenticate to a web server with the POST method, receive a session ID in a cookie, and then send this cookie along with all GET queries... but all I found is half-working code or C# code, ie. difficult to use for a VB.Net newbie. Would someone have some code handy or some pointer that I could use to get started? Thank you.

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• Samples of Scala and Java code where Scala code looks simpler/has less lines?

  - by Roman

  I need some code samples (and I also really curious about them) of Scala and Java code which show that Scala code is more simple and concise then code written in Java (of course both samples should solve the same problem). If there is only Scala sample with comment like "this is abstract factory in Scala, in Java it will look much more cumbersome" then this is also acceptable. Thanks!

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• Editing code in Visual Studio 2008 in debug mode

  - by user279521

  I am curious to know if there is a way to edit code in VS 2008 right when it has hit a breakpoint and I am walking thru the code... can I modify the code (such as the value in a variable or if my stepthrough line is about to hit an if statement ... can I modify the if statement....etc)? So far, I have to stop running VS, modify the code, then hit F5 and wait till the breakpoint is hit again.

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• copy code from one file to other file in c#

  - by gou

  Using Below Code, We Can Copy Code from One textbox to other textbox. private void Copybtn_Click(object sender, EventArgs e) { Clipboard.SetText(txtSour.Text); } //paste the text private void Pastebtn_Click(object sender, EventArgs e) { txtDestinatio.Text = Clipboard.GetText(); } My Requirement is: Copy Code from one file to other file using C#? Is It possible using ClipBoard? Then i need to copy code from one file to other? Please AnyOne Help me

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• if curl getinfo for HTTP CODE is not returning a code!?

  - by jtanmay

  Hi, I am doing a normal curl call to a webservice and I grab the return HTTP code through $code = curl_getinfo ($ch, CURLINFO_HTTP_CODE); It does return me $code as 200 - which is good. But logging the curl calls now from a week, there where few calls to the same webservice which didn't return anything! so basically I am getting $code as blank. Can someone tell me what should be going wrong under those scenarios, and if can debug it more!? Thanks, Tanmay

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• Ubuntu 12.04 on Amazon EC2: /dev/xvda1 will be checked for errors at next reboot?

  - by cwd

  I'm running the lastest Ubuntu 12.04 AMI (ami-a29943cb) from Canonical on Amazon EC2 and quite often when I log in I get the message: *** /dev/xvda1 will be checked for errors at next reboot *** I have read a bunch of documentation on this and seem to understand that every so many reboots (around 37 see Mount count / Maximum mount count below) Ubuntu wants to check a disk for errors. I can see that by using dumpe2fs -h /dev/xvda1 (reference) to get information such as: Last mounted on: / Filesystem UUID: 1ad27d06-4ecf-493d-bb19-4710c3caf924 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash Default mount options: (none) Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 524288 Block count: 2097152 Reserved block count: 104857 Free blocks: 1778055 Free inodes: 482659 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 511 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 Flex block group size: 16 Filesystem created: Tue Apr 24 03:07:48 2012 Last mount time: Thu Nov 8 03:17:58 2012 Last write time: Tue Apr 24 03:08:52 2012 Mount count: 3 Maximum mount count: 37 Last checked: Tue Apr 24 03:07:48 2012 Check interval: 15552000 (6 months) Next check after: Sun Oct 21 03:07:48 2012 Lifetime writes: 2454 MB Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: 0a25e04c-6169-4d68-bfa6-a1acd8e39632 Journal backup: inode blocks Journal features: journal_incompat_revoke Journal size: 128M Journal length: 32768 Journal sequence: 0x0000158b Journal start: 1 I've tried these things to get rid of the message and usually the badblocks is what does it for me: Run this command and reboot: sudo touch /forcefsck Run badblocks to check the disk: badblocks /dev/sda1 Edit /etc/fstab and change the last "0" which is the fs_passno column accordingly and then reboot: The root filesystem should be specified with a fs_passno of 1, and other filesystems should have a fs_passno of 2. I don't understand: If this is a virtual drive shouldn't it be less prone to errors? Was the image created with one of the flags set? If not what is triggering it? Why is fs_passno set to 0 on Amazon EC2 Ubuntu images? This is not the first one that is like this.

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• How do I align my partition table properly?

  - by Jorge Castro

  I am in the process of building my first RAID5 array. I've used mdadm to create the following set up: root@bondigas:~# mdadm --detail /dev/md1 /dev/md1: Version : 00.90 Creation Time : Wed Oct 20 20:00:41 2010 Raid Level : raid5 Array Size : 5860543488 (5589.05 GiB 6001.20 GB) Used Dev Size : 1953514496 (1863.02 GiB 2000.40 GB) Raid Devices : 4 Total Devices : 4 Preferred Minor : 1 Persistence : Superblock is persistent Update Time : Wed Oct 20 20:13:48 2010 State : clean, degraded, recovering Active Devices : 3 Working Devices : 4 Failed Devices : 0 Spare Devices : 1 Layout : left-symmetric Chunk Size : 64K Rebuild Status : 1% complete UUID : f6dc829e:aa29b476:edd1ef19:85032322 (local to host bondigas) Events : 0.12 Number Major Minor RaidDevice State 0 8 16 0 active sync /dev/sdb 1 8 32 1 active sync /dev/sdc 2 8 48 2 active sync /dev/sdd 4 8 64 3 spare rebuilding /dev/sde While that's going I decided to format the beast with the following command: root@bondigas:~# mkfs.ext4 /dev/md1p1 mke2fs 1.41.11 (14-Mar-2010) /dev/md1p1 alignment is offset by 63488 bytes. This may result in very poor performance, (re)-partitioning suggested. Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=16 blocks, Stripe width=48 blocks 97853440 inodes, 391394047 blocks 19569702 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=0 11945 block groups 32768 blocks per group, 32768 fragments per group 8192 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 102400000, 214990848 Writing inode tables: ^C 27/11945 root@bondigas:~# ^C I am unsure what to do about "/dev/md1p1 alignment is offset by 63488 bytes." and how to properly partition the disks to match so I can format it properly.

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