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• stl string return by const reference vs. const char*

  - by user342673

  i have a STL string member variable in my class, class A { public: const char* getData1() const { return data.c_str()); const string& getData2() const { return _data; } private: string _data; }; getData1() vs. getData2(), which one is better?

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• Using 'this': where is good and where is not [closed]

  - by abatishchev

  I like to use 'this' statement for all non-local variables: for properties, for class variables, etc. I do this for code easy reading, easy understanding where from this variable has got. object someVar; object SomeProperty { get; set } void SomeMethod(object arg1, object arg2) { this.SomeProperty = arg1; this.someVar = arg2; } How do you think, what is proper way to use 'this'?

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• I want the actual file name that is returned by a PHP script

  - by Aymon Fournier

  I am writing a python script that downloads a file given by a URL. Unfortuneatly the URL is in the form of a PHP script i.e. www.website.com/generatefilename.php?file=5233 If you visit the link in a browser, you are prompted to download the actual file and extension. I need to send this link to the downloader, but I can't send the downloader the PHP link. How would I get the full file name in a usable variable?

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• Why thread specific data is required in pthread ?

  - by user504542

  Hi As i know, all the threads share memory location. For example a global variable changes in one thread will reflect in another thread. Since each thread has its own stack, the local variables that are created inside the thread is unique. In this case, why do we need to go for thread specific data mechanism?. Can't it be achieved by auto storage varibles inside the thread function ? Kindly clarify!!!. BR Rj

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• Display different iphone views depending on logged in status

  - by user330936

  I want to display a login view to my users if they are not logged in and the main view if they are. In my header file I define a variable to hold the logged in status #define loggedIn 0 I figure I should then reference this in the initWithNibName method and then decide which nib to load. Is the right way of doing it? If so can someone help me out with the exact code? Thanks for any help

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• Fetch html page content into a var

  - by Cipher

  Just a small question here, that how do we get fetch the html content via ajax into a variable that I could use later. Right now, I have a button on the click of which, I fetch another html page simply through load method as follows: $('#container').load('http://127.0.0.1/someUrl') I want to get the content into a var instead that I could at a later time use to append to the dom $('#someContainer').append(someVar)

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• How do I create a multiline textbox that adjusts the height automatically when the window is resized

  - by tmim

  I have an xul file with a multiline textbox. When I resize the window, its width changes but its height is constant. How do I make its height variable?

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• Can I tag in svn with nant?

  - by David Belanger

  Hi, I'm needing to build multiple environments and tag them in subversion using a nant script. Is there a way that I can use nant to create the tags in svn with a variable I supply? Thanks.

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• Can a trait state if a C++ class has a default constructor?

  - by Vicente Botet Escriba

  Traits classes can be defined to check if a C++ class has a member variable, function or a type (see here). Curiously, the ConceptTraits do not include traits to check if a C++ class defines a default constructor or given constructor? Can traits be used to check the constructor presence? If yes, how? If not, why it is not possible?

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• What is the equivalent of Java's final in C#?

  - by Nosrama

  What is the equivalent of Java's final in C#? EDIT: Sorry, I should have been clearer. I meant what is the equivalent when applied to a member variable - so it must be assigned once and only once.

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• adding a click event to fullcalendar

  - by sbekele

  How can I add a click event on the event and pass the day and event time as url variable to another page. Like when user click in the event I want to pass the date and event time to another page for processing. Any idea are welcome. Thanks

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• Is it possible to use 'variables' for css / html element ?

  - by stighy

  Hi, i would like to make 'skinnable' a web site written in asp.net... I explain: for example, i have a 'div' element, and i would like to define a background-color using a variable, not a fixed value. How can i do ? Css ? Or other tecniques ? Thanks

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• PHP MySQL query help

  - by user547794

  Hello, I am trying to use this query to return every instance where the variable $d['userID'] is equal to the User ID in a separate table, and then echo the username tied to that user ID. Here's what I have so far: $uid = $d['userID']; $result = mysql_query("SELECT u.username FROM users u LEFT JOIN comments c ON c.userID = u.id WHERE u.id = $uid;")$row = mysql_fetch_assoc($result); echo $row['username'];

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• How to check the existence of a row in SQLite?

  - by fx

  I have the cursor with the query statement as follows: cursor.execute("select rowid from components where name = ?", (name,)) I want to check for the existence of the components: name and return to a python variable. How do I do that?

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• Difference between B b and A<B> b.

  - by chitresh

  Assume class B extends class A and I want to declare a variable for B. What is more efficient and why? B b OR A<B> b.

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• how to store int data type in bool?

  - by shak

  i want to read a file which consists of 1's and 0's in each line, how do can i store a false in any bool variable after reading 0 from the file. language c++

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• Is there a way to read an .ini file into memory and then read particular values from it?

  - by Clay Nichols

  I've got a situation where an ini file is in memory (in a string variable) and I'd like to read values out of it without writing the ini file data to disk. Is there any way to do that in VB6? Maybe with a Win API call?

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• Use jQuery to Enable/Disable a Button based on vars

  - by Rylea S.

  Ok so, Im using jQuery to do username and email checks before a signup... this sets a variable true or false depending on the response from php. $(document).ready(function() { if (usr_checked == true) { if (em_checked == true) { $("#registerbttn").removeAttr("disabled"); } } else { $("#registerbttn").attr("disabled", "disabled"); } }); How exactly do i get it to watch those variables live? Thanks :D

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• Retrieve Specific Data/Value From Database 1 Line PHP

  - by Belgin Fish

  Hi, I'm just wondering how I can retrieve a specific value (only 1 thing will be returned) from a database using php. My query is mysql_query("SELECT balance FROM users WHERE username = '". $this->username . "'") I'm just looking for it to retrieve the data from that row so I can save it directory into a variable.

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• C++ function dynamic data type definition

  - by user330352

  Hi all, in C++, when you define a function which takes one argument, you have to define the data type of that variable: void makeProccess(int request) However, I want to implement a function which takes different data types rather taking statically defined integer type. void makeProccess(anyType request) How can I design a proccess like this, any idea? Thanks.

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• What's the benefit of function refrence?

  - by SpawnCxy

  When I reading the code of CodeIgniter,I found some functions written as follows: function &get_instance() { global $CI, $OBJ; if (is_object($CI)) { return $CI; } return $OBJ->load; } I can understand variable refrence,but I can hardly get this through.Is it necessary to use this function style?And any benefit? Thanks.

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• Dynamic allocation in C

  - by Kerby82

  I'm writing a program and I have the following problem: char *tmp; sprintf (tmp,"%ld",(long)time_stamp_for_file_name); Could someone explain how much memory allocate for the string tmp. How many chars are a long variable? Thank you, I would appreciate also a link to an exahustive resource on this kind of information. Thank you

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• implementing custom timeline with notifications

  - by user299233

  Hello, I am using compositionTarget_rendering function to do some stuff in silverlight. Now I want to implement some kind of timelime, with notifications, i.e add some markers, and when a variable X reaches the marker value, an event is raised .. How should be the best way to do this? Thanks in advance

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• Evaluate empty or null JSLT c tags

  - by user338381

  How can I validate a String null or empty using the c tags of JSLT. I have a variable of name var1 and I can display it, but I want to add a comparator for validate it. I want to validate when is different of null or empty (my values are string).

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• Why subtract a value from itself (x - x) in Python?

  - by endolith

  In NumPy functions, there are often initial lines that do checking of variable types, forcing them to be certain types, etc. Can someone explain the point of these lines? What does subtracting a value from itself do? t,w = asarray(t), asarray(duty) w = asarray(w + (t-t)) t = asarray(t + (w-w))

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