Search Results

Search found 15698 results on 628 pages for 'keep alive'.

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 238/628 | < Previous Page | 234 235 236 237 238 239 240 241 242 243 244 245  | Next Page >

  • Is throwing an exception a healthy way to exit?

    - by ramaseshan
    I have a setup that looks like this. class Checker { // member data Results m_results; // see below public: bool Check(); private: bool Check1(); bool Check2(); // .. so on }; Checker is a class that performs lengthy check computations for engineering analysis. Each type of check has a resultant double that the checker stores. (see below) bool Checker::Check() { // initilisations etc. Check1(); Check2(); // ... so on } A typical Check function would look like this: bool Checker::Check1() { double result; // lots of code m_results.SetCheck1Result(result); } And the results class looks something like this: class Results { double m_check1Result; double m_check2Result; // ... public: void SetCheck1Result(double d); double GetOverallResult() { return max(m_check1Result, m_check2Result, ...); } }; Note: all code is oversimplified. The Checker and Result classes were initially written to perform all checks and return an overall double result. There is now a new requirement where I only need to know if any of the results exceeds 1. If it does, subsequent checks need not be carried out(it's an optimisation). To achieve this, I could either: Modify every CheckN function to keep check for result and return. The parent Check function would keep checking m_results. OR In the Results::SetCheckNResults(), throw an exception if the value exceeds 1 and catch it at the end of Checker::Check(). The first is tedious, error prone and sub-optimal because every CheckN function further branches out into sub-checks etc. The second is non-intrusive and quick. One disadvantage is I can think of is that the Checker code may not necessarily be exception-safe(although there is no other exception being thrown anywhere else). Is there anything else that's obvious that I'm overlooking? What about the cost of throwing exceptions and stack unwinding? Is there a better 3rd option?

    Read the article

  • Help me choose between XML or SQL Lite on android

    - by Ngetha
    I have an android app that periodically, say once a week downloads content from a server in XML. The content is used by the app, different Acitivities use different parts of the content. My question is a design one, should I save the data in SQlite or just keep it as an XML file, which one would be faster to read? The app can only use one content piece at a time, which means subsequent XML content downloads replace the old one.

    Read the article

  • Can a domain owner be hidden?

    - by Tal Galili
    Hello all, I am not sure if this question belongs here or superuser (or other). If not - please let me know and I'll erase the question. A friend of mine wishes to buy a domain but keep his name hidden. Is there a secure way of doing so?

    Read the article

  • How important is it for me to pool my connections?

    - by Rio Mango
    It has been suggested to me that I rearrange my code to "pool" my ADO connections. On each web page I would open one connection and keep using the same open connection. But someone else told me that was important 10 years ago but is not so important now. If I make, let's say, 5 db calls on a web posting, is it problematic to be using 5 separate connections that I open/close?

    Read the article

  • show message in new windows

    - by lolalola
    Hi, now program show Messagebox and wait user decision. How make, that program don't wait? Show Messagebox, ant keep going. (I do not need a user action. I just need to show text) Or maybe a better option than to report the information to a new window? I hope to understand my problem.

    Read the article

  • ruby enclose selected whole words in brackets

    - by astropanic
    @string = "Sometimes some stupid people say some stupid words" @string.enclose_in_brackets("some") # => "Sometimes {some} stupid people say {some} stupid words" How should the method enclose_in_brackets look ? Please keep in mind, I want only enclose whole words, (I don't want "{Some}times {some} stupid....", the "sometimes" word should be left unchanged

    Read the article

  • ASP.NET MVC - Where do you put your .js files if you dont want to store them in /Scripts?

    - by Jimbo
    I have a number of .js files that I would like to be stored in the same directories as their views (they're specific to a view - its simply to keep the javascript separate from the view's HTML) However, adding them to the /Views/ControllerName/ directory wont work because when a request is made to the webserver for the .js file: <script type="text/javascript" src="/Views/ControllerName/myscript.js"></script> It would essentially be directed at the 'Views' controller which obviously doesnt exist. Thanks

    Read the article

  • Add effects to datagrid invalidate

    - by MooCow
    Is it possible to add an effect to a datagrid when I call invalidatelist to update the data? If it can be done, can the effects be selectively applied to only certain cells in the grid? The grid is showing an array with some nested array in it. I'm using an int counter to keep track of the nested array element position. When the counter is advanced, I tell the grid to update using invalidatelist.

    Read the article

  • SEO Friendly URLs where the phrase used may change in Rails

    - by Newy
    Say I have http://www.mysite.com/I-Like-Cheeseburgers and I want that to point to Item with id 3. Sometime later, I change the name of the item, and now its http://www.mysite.com/I-Like-Hamburgers (and perhaps many more times). I want all these URLs to remain pointing to Item 3. Is it efficient to simply keep a table of [strings,item_ids] and do a lookup on this? Is there a better way?

    Read the article

  • What is wrong with this PHP function.

    - by [email protected]
    I am new to PHP and regular expression. I was going thorugh some online examples and came with this example: <?php echo preg_replace_callback('~-([a-z])~', function ($match) { return strtoupper($match[1]); }, 'hello-world'); // outputs helloWorld ?> in php.net but to my surprise it does not work and keep getting error: PHP Parse error: parse error, unexpected T_FUNCTION Why get error ?

    Read the article

  • How to fix windows 7 loader?

    - by Adio
    I have an HD 250 Gb It is portioned to C,D,E C has 50 GB D has 50 GB and the rest is given to E, On C I have Windows 7, I decided to install Opensuse On E. I have installed Opensuse Successfully. Now Opensuse loader shows Windows7 option when I it loads but, when I chose to load windows 7 I get " A Disk read error occured, press ctrl+alt+e to restart". Does any one has an Idea How to fix windows 7 and keep Opensuse ? My Opensuse is 12.2. Thanks

    Read the article

  • Gtk how to remove scroll bar.

    - by PP
    GTK how to remove scroll bar from GtkScrolledWindow. I want to keep scrolling but don't want the visual scrolling bar on right side i just want to hide it. using GTK + C. I Tried gtk_widget_hide_all(gtk_scrolled_window_get_vscrollbar(GTK_SCROLLED_WINDOW(scrolled_window))); but it does not work.

    Read the article

  • Using Int32 or what you need

    - by Sir Psycho
    Should you use Int32 in places where you know the value is not going to be higher than 32,767? I'd like to keep memory down, hoever, using casts everywhere just to perform simple arithmetic is getting annoying. short a = 1; short result = a + 1; // Error short result = (short)(a + 1); // works but looks ugly when does lots of times What would be better for overall application performance?

    Read the article

  • When would I want to model a class with a private ctor?

    - by dotnetdev
    Hi, I've seen plenty of classes in .NET which have private constructor (Stream is one of them I think). When would I want to model a class like this? I keep thinking that if my class has no internal state/fields, then I can make it have a private constructor. Am I on the right track with this idea? I can understand the use of a factory (I've run into the tipping point a few times), but not with a private constructor class. Thanks

    Read the article

  • Compare two times without regard to Date associated - Ruby

    - by H55nick
    I am trying to find the difference in time (without days/years/months) of two different days. Example: #ruby >1.9 time1 = Time.now - 1.day time2 = Time.now #code to make changes #test: time1 == time2 # TRUE My solution: time1 = time1.strftime("%h:%m").to_time time2 = time2.strftime("%h:%m").to_time #test time1 == time2 #True #passes I was wondering if there was a better way of doing this? Maybe we could keep the Date the same as time1/time2?

    Read the article

  • Image animation over CGContextDrawPDFPage

    - by BittenApple
    I have a pdf page displayed with CGContextDrawPDFPage. I want to keep this page shown and have an image slide in from top over this page, just as it can be seen in the iBooks application. It's a book, the sliding image is a bookmark that slides in when you are about to close the book. What is the best way to go about implementing this?

    Read the article

  • How do I simply hide a tooltip?

    - by Jonathan Garrido
    I have a image set as a link, with a title which is used for a caption in a lightbox. I need the "title" set in order to keep the caption for the lightbox, but I don't want the tool tip to pop up when I hover over the links. Anyone got a easy css fix? Or does this need to be done in Javascript?

    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 | 234 235 236 237 238 239 240 241 242 243 244 245  | Next Page >