Search Results

Search found 13749 results on 550 pages for 'reason'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 151/550 | < Previous Page | 147 148 149 150 151 152 153 154 155 156 157 158  | Next Page >

  • Use of malloc() and free() in C++

    - by Matt H
    Is there any reason to use malloc and free in C++ over their more modern counterparts? Occasionally I see this, and I can't see why some people do it. Are there any advantages/disadvantage, or is there no real difference, except that it's just better to use C++ constructs in C++?

    Read the article

  • Shell complains 'cannot execute binary file'

    - by Negai
    Hi everyone, I've playing around with linux and noticed that for some mysterious reason commands like '/bin/sh ' just will not work. Each time I'm trying to start a process it yields 'cannot execute binary file' error message. m@sanctuary:~$ sh sed /bin/sed: /bin/sed: cannot execute binary file When I first launch sh and try to execute sed, it succeeds. I'm starting to loose my wits. It would be just great, if somebody could help me. Thank you.

    Read the article

  • Adding a clustered index to a SQL table: what dangers exist for a live production system?

    - by MoSlo
    Right, keep in mind i need to describe this by abstracting all possible confidential info: I've been put in charge of a 10-year old transactional system of which the majority business logic is implemented at database level (triggers, stored procedures etc). Win2000 server, MSSQL 2000 Enterprise. No immediate plans for replacing/updating the system are being considered :( The core process is a program that executes transactions - specifically, it executes a stored procedure with various parameters, lets call it sp_ProcessTrans. The program executes the stored procedure at asynchronous intervals. By itself, things work fine. But there are 30 instances of this program on remotely located workstations, all of them asynchronously executing sp_ProcessTrans and then retrieving data from the SQL server (execution is pretty regular - ranging 0 to 60 times a minute, depending on what items the program instance is responsible for) . Performance of the system has dropped considerably with 10 yrs of data growth: the reason is the deadlocks and specifically deadlock wait times. The deadlock is on the Employee table. I have discovered: In sp_ProcessTrans' execution, it selects from an Employee table 7 times (dont ask) The select is done on a field that is NOT the primary key No index exists on this field. Thus a table scan is performed. 7 times. per transaction So the reason for deadlocks is clear. I created a non-unique ordered clustered index on the field (field looks good, almost unique, NUM(7), very rarely changes). Immediate improvement in the test environment. The problem is that i cannot simulate the deadlocks in a test environment (I'd need 30 workstations; i'd need to simulate 'realistic' activity on those stations, so visualization is out). I need to know if i must schedule downtime. Creating an index shouldn't be a risky operation for MSSQL, but is there any danger (data corruption in transactions/select statements/extra wait time etc) to create this field index on the production database while the transactions are still taking place? (although i can select a time when transactions are fairly quiet through the 30 stations) Are there any hidden dangers i'm not seeing (not looking forward to needing to restore the DB if something goes wrong, restoring would take a lot of time with 10yrs of data).

    Read the article

  • C# if no error contiune.. if error occurse do else

    - by NightsEVil
    hi i have a question i have some code that works good on like 70% of the computers i use it on but.. for some reason theres a few that are pesky and id like to do something like this (keep in mind this is a hypothetical) private void test_click(object sender, EventArgs e) { MessageBox.Show("hi"); //if it works ok without a error it continues to MessageBox.Show("worked ok"); //if it encountered a error of some kind it would go to MessageBox.Show("DID NOT WORK OK"); }

    Read the article

  • callback function for php preg_replace_callback not getting called on linux CentOS 5.4

    - by user105165
    I have used the preg_replace_callback as $string = preg_replace_callback($pattern,'CreateTemplatesController::callbackhandler',$string ); I have called the callbackhandler function with the class name as this function is a private static function. Problem is "callbackhandler" function is not getting called. Please post if any one know the reason for the same. Thanks in Advance

    Read the article

  • clear command in my mac os terminal gives the following error

    - by sil
    dyld: Library not loaded: /opt/local/lib/libncursesw.5.dylib Referenced from: /opt/local/bin/clear Reason: image not found Trace/BPT trap This is what my bash_login looks like: export PATH="/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:$PATH" export PATH="/usr/local/apache-maven-2.2.1/bin:$PATH" export PATH="~/.gem/ruby/1.8/bin:$PATH" export PATH="/usr/local/mysql/bin:$PATH" export PATH="/System/Library/Frameworks/JavaVM.framework/Versions/1.6/Home/bin:$PATH" export PATH=/opt/local/bin:/opt/local/sbin:$PATH export MANPATH=/opt/local/share/man:$MANPATH

    Read the article

  • Select all text in an <input /> when it gains focus

    - by Chris Barr
    I've got a textbox (set to readonly) and I need its' contents to be selected for easy copy/paste when it gains focus. Using the code below it only seems to quickly select the text and then unselect it for some reason. HTML <input id='thing' type='text' value='some text' readonly='readonly' />? JavaScript document.getElementById('thing').onfocus = function(){ this.select(); };? Fiddle: http://jsfiddle.net/cfqje/

    Read the article

  • Internet Explorer treating AJAX GET request as POST request?

    - by Matt Huggins
    For some reason, only in IE (tried 7 & 8), jQuery is performing a POST request when it should be a GET. See below: function(...) { /* ... */ $.ajax({ type: 'GET', dataType: 'script', url: '/something/' + id, processData: false, data: 'old_id=' + oldId, success:function(data) { alert(data); } }); /* ... */ } All browsers properly GET, but IE is performing a POST. Why?

    Read the article

  • How can I declare an object with properties that I will be passing around inside of my function using Typescript?

    - by Marilou
    I've been using the following: var modal = { content: '', form: '', href: '' } But now I have started to use Typescript is there a better way I can declare an object and how can I declare the types of my properties. The reason I am using this object is that it's inside of a function and inside that function I have other functions that set and use the values of the properties. Is this the best way for me to do this or is there another way I could better do this with typescript?

    Read the article

  • How to define a constant when running script/server?

    - by Zeke
    I want to start up my Rails development server like this: script/server OFFLINE_MODE=1 and have a method that checks for the presence of that constant: helper_method :offline_mode? def offline_mode? defined?(OFFLINE_MODE) ? true : false end so I can hide stuff in my app when I'm coding without access to the internet. For some reason though, OFFLINE_MODE doesn't ever seem to be defined and the method always returns false.. thoughts?

    Read the article

  • Yield and default case || do not output default case

    - by coulix
    Hello Railers, I have a simple yield use case and for some unknown reason the default case is never shown: In my super_admin layout I have: <%= yield :body_id || 'super_admin_main' %> My controller class Superadmin::GolfsController < ApplicationController layout "super_admin" def show end end My show view With or without <% content_for(:body_id) do %sadmin_golfs<% end % With: sadmin_golfs is shown. without: empty string is shown instead of super_admin_main Can anyone reproduce the same behavior ? Rails 3

    Read the article

  • shell tool which renders web site including javascript

    - by drholzmichl
    Hi, we want to test our webpages on linux shell. For that reason I'm looking for a shell tool, which gets the html page from server (like 'wget') and then executes contained Javascript, include pictures and so on. After this, the tool should give me a 'screenshot' of the rendered page, so that I can create a checksum for that screen. (So I want to the same as opening browser in Windows, open webpage and make a screenshot after page load, but on linux) Can anyone give me a hint?

    Read the article

  • A question is related to exception

    - by user217572
    * -[UIDeviceRGBColor size]: unrecognized selector sent to instance 0x31e520 2010-03-18 12:36:48.511 IChitMe[4012:207] Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '** -[UIDeviceRGBColor size]: unrecognized selector sent to instance 0x31e520' I'm getting this exception when I'm clicking on back button of UIToolBar

    Read the article

  • ReSharper: Rename namespace not available?

    - by Rosarch
    I'm trying to rename a namespace. For some reason, ReSharper isn't giving me the option to do so. I right click on it and choose Refactor, but everything except "Convert" is greyed out. I try the key combination CTRL R + R, and it says the command is unavailable. What am I doing wrong? Here is documentation suggesting that what I am trying to do should work: http://www.jetbrains.com/resharper/documentation/help20/Refactoring/renaming.html#renameNamespace I'm using Visual Studio 2008 with R# 4.5

    Read the article

  • Entity Framework 4 omits some associations during model generation

    - by kzen
    After creating an EF4 model from a SQL Server database I noticed that all the relationships of my Users table were not imported into the model as associations. All the other relationships were imported fine. My Users table has a PK userId which is a char(7) field and it is integrated into several other tables in the database as an FK but for some reason EF4 does not import these relationships as associations during the model generation process... Does anyone have any ideas why this would be happening?

    Read the article

  • Determining if an Activity exists on the current device?

    - by stormin986
    Is there a way to check and see if an Activity exists on your device? If I have a youtube video link I want to specify it open in the YouTube PlayerActivity. However, I don't want to crash if for some reason they don't have it. Is there a way to check and see if the activity exists? I don't think I can catch the runtime exception since startActivity() doesn't throw it.

    Read the article

  • Is complete boost going to be included in C++0x?

    - by iammilind
    Many utilities of boost have been included as part of extended C++ TR1 currently. Is the complete boost library going to be included once the standard is officially out ? In other words, do I need boost library, if I have complete standard conforming C++11 compiler ? If not then any reason for that (Reliability cannot be an issue; as far as I know it's written by many people from standard committee) ?

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 147 148 149 150 151 152 153 154 155 156 157 158  | Next Page >