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• Tracing memory leaks

  - by iFloh

  My favorite candidate again. I am in the process of identifying memory leaks in my app (a puzzling challenge for a newbe like me). I am using the xCode leak analyzer, but what puzzles me is how to trace back a memory leak to its variable or value. Is there a pointer to the instances that have reserved a memory address where a leak is identifyed? How do I best go about it?

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• How do I convert jstring to wchar_t *

  - by Obediah Stane

  Let's say that on the C++ side my function takes a variable of type jstring named myString. I can convert it to an ANSI string as follows: const char* ansiString = env-GetStringUTFChars(myString, 0); is there a way of getting const wchar_t* unicodeString = ...

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• how to pass a parameter safely into linq to sql

  - by Blankman

  If I want to get a user that has the email address of '[email protected]', how do I pass that as a parameter in linq? ie.: var a = from u in Users where u.Email = @email Select u; So this would be used in my method: public static GetuserByEmail(string email) Do I just pass in the variable or?

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• what factors should a fresher(for programmer job) consider and learn before saying yes to employer f

  - by Senthil

  what factors should a fresher(for programmer job) consider and learn before saying yes to employer for job offer? and to contract? and most importantly how should one get the details?how can I approach them? I know some employers dont want to give such details..right? I have shortlisted by a Software COmpany..that is parter with microsoft. and works on technology like VB ADO.DOTNET,and some other reporting stuffs.,sql servers etc.,Tell me about scope of that..because They are asking me to sign for 2 year certificate bond agreement..I want to be a great programmer and Project Leader after 5 years..advise me guys..Language/OS not problem for me,As I curious to learn more things. Most of the SO members are programmers..so yours advice is greatly appreciated

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• Diferent default remote for git pull and git push

  - by svick

  Is there a way to set up a git repository, so that git pull defaults to one remote and git push defaults to another? I know I can set both by changing the value of the remote variable in branch section of .git/config, but how to do it for each direction separately?

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• JSP doPost getAtribute null value

  - by newbie123

  I want to pass value to servlet but I keep get null value. <jsp:useBean id="Helper" class="model.Registration" scope="request"/> <form action="/Project/Registration" method="post" enctype="multipart/form-data"> <input type="text" size="20" name="name" value="<%=Helper.getName()%>"> <input type="submit"> </form> protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Registrationh2 = (Registration) request.getAttribute("Helper"); if(h2!=null){ System. out.println(h2.getName()); } else System. out.println("NULL"); } Is there anything wrong with my code?

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• How could I add multiple stylesheets to Colorbox (lightbox clone)?

  - by Neurofluxation

  What I basically want is a Colorbox (which is a lightbox clone), to have an argument which chooses different stylesheets dependant on which variable I provide.

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• How many indexes will actually get used?

  - by Ender

  I'm writing a page that does very simple search queries, resulting in something like: SELECT * FROM my_table WHERE A in (a1, a2, a3) AND B in (b1, b2) AND C in (c1, c2, c3, c4) AND And so on for a variable number of columns, usually ~5. If I create a separate index for each column (one for A, one for B, one for C, not (A,B,C)), will all of them be used in the above query?

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• how to selectively filter items in a collection

  - by Samuel

  I use the following snippet to filter the list of selected users, where isSelected is a boolean variable. Is there a simpler way (helper function) to populate the selectedUsers collection instead of writing the following lines of code. List<User> selectedUsers = new ArrayList<User>(0); for (User user : this.getUsers()) { if (user.isSelected()) { selectedUsers.add(user.getId()); } }

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• What alternatives to __attribute__ exist on 64-bit kernels?

  - by Saifi Khan

  Hi: Is there any alternative to non-ISO gcc specific extension __attribute__ on 64-bit kernels ? Three types that i've noticed are: function attributes, type attributes and variable attributes. eg. i'd like to avoid using __attribute__((__packed__)) for structures passed over the network, even though some gcc based code do use it. Any suggestions or pointers on how to entirely avoid __attribute__ usage in C systems/kernel code ? thanks Saifi.

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• How to store and access JSON data for a site?

  - by Callmeed

  I'm buiding an HTML/jQuery site where almost all the content comes from remote JSON data. I'm having trouble coming up with a good way to store and access the data in the future (scope-wise). Currently, I've written a jQuery plugin that gets the JSONP data when the site loads. But I have other functions and jQuery plugins that need to access this data. Where should this data be stored so other functions and plugins can access it? Should it be a global variable? If it matters, this site will only run on the iPad and the back-end of the site is in Rails.

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• How to move value from the stack to ST(0)?

  - by George Edison

  I am having trouble believing the following code is the most efficient way to move a value from the stack to ST(0): .data var dd 4.2 tmp dd ? .code mov EAX, var push EAX ; top of stack now contains a value ; move it to ST(0) pop EAX mov tmp, EAX fld tmp Is the temporary variable really necessary? Further, is there an easier way to get a value from the stack to ST(0)?

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• the "new" operator in c++, pointer question

  - by Crystal

  Dumb question, but whenever you call new, do you always have a pointer? SomeClass *person = new SomeClass(); And is that because you need a pointer to point to that new space of memory that was allocated for the SomeClass variable person? Thanks!

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• xargs command works on ubuntu, but not mac

  - by Corey Hart

  I have the following line of code that I use to update my personal date variable in my projects to todays current date. This line works in Ubuntu's terminal, but the Mac terminal seems to be far behind. Unfortunately, I copied this snippet from some site, so I'm not sure how it exactly works. Suggestions? grep -ilr --exclude=revar.sh --exclude=README.md "[DATE]" * | grep -v .git | xargs -i@ sed -i "s/\[DATE\]/${today}/g" @

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• Android - Volume Buttons used in my application

  - by Iuliu Atudosiei

  Hi, I need to use volume buttons to control a variable parameter in my application. I use Activity.onKeyDown to get notified when the button is pressed but the media volume is also increased. Android is doing something like below when I press the volume key: 1. increase media / ringtone volume 2. pass the event to my application Is there a way to avoid increasing the system volume and use volume key only for my application ? Thanks

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• Selecting all elements

  - by Eelke

  This should be really simple but I'm a javascript/jQuery rookie, so here we go: With the following code I can select a certain element var user = $(".ui-selected .user-name").html(); But if there are multiple elements with the above classes, only the first value gets selected. What I would like to accomplish is a variable with all the elements seperated by a , like: user1,user2,user3 ... etc. Any help would be greatly appreciated, thanks in advance!

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• On a system level, adding a directory to the Perl library path

  - by paulj3000

  On a standard linux set up, where can I add a directory to the @INC variable? In the /etc/profile file, I added: export PERLLIB=$PERLLIB:/foo/bar export PERL5LIB=$PERL5LIB:/foo/bar Thanks

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• Passing a parameter to an html function

  - by user338543

  how pass a parameter to onload function?? <body onLoad="myFunction(<%=myVar%>)"> It crashes. The parameter is a vb variable defined with Dim The function is a vbscript function Urgent HELP

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• Persisting sensitve data in asp.net, odd implementation

  - by rawsonstreet

  For reasons not in scope of this question I have implemented a .net project in an iframe which runs from a classic asp page. The classic asp site persisted a few sensitive values by hitting the db on each page. I have passed there variables as xml to the aspx page, now I need to make these values available on any page of this .net site. I've looked into the cache object but we are on a web farm so I am not sure it would work. Is there a way I can can instantiate an object in a base page class and have other pages inherit from the base page to access these values? What is the best way to persist these values? A few more points to consider the site runs in https mode and I cannot use session variables, and I would like to avoid cookies if possible..

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• Django: Get bound IP address inside settings.py

  - by Silver Light

  Hello! I want to enable debug (DEBUG = True) For my Django project only if it runs on localhost. How can I get user IP address inside settings.py? I would like something like this to work: #Debugging only on localhost if user_ip = '127.0.0.1': DEBUG = True else: DEBUG = False How do I put user IP address in user_ip variable inside settings.py file?

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• How to store multiple values in TSQL Variables

  - by RPS

  I have the following TSQL Statement: SELECT ProductId, OwnerId FROM Product How I can store the ProductId and OwnerId in a TSQL variable and then return it to the calling application?

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• Selecting rows from DataTable by DateTime column (hours)

  - by nCdy

  DatarowsForOneDay = dt.Select( dt.Columns[0].Caption + "='" + x.ToString("dd/MM/yyyy HH") + "'"); doesn't work, but DatarowsForOneDay = dt.Select( dt.Columns[0].Caption + "='" + x.ToString("dd/MM/yyyy") + "'"); works. So how can I select the date with a same hour? Variable x type is DateTime.

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• Call main() itself in c++?

  - by Mask

  int main() { cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!! system("pause"); return main(); } The above works,but it hardcoded the main(),is there a magic variable to get the current running function?

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• Large number of tables and Hibernate memory consumption

  - by Vedran

  I'm working on a large ERP project which has database model with about 2100 tables. With "only" 500 tables mapped with Hibernate, application deployed on the web server takes about 3GB of working memory. Is there any way to reduce Hibernate's metamodel memory footprint when using that many tables in one persistence unit? Or should I just give up on ORMs and go with plain old JDBC (or even jOOQ)? Right now I'm using Hibernate 4.1.8, Spring 3.1.3, JBoss AS 7.1 and working with MSSQL database. Edit: JavaMelody memory histogram output - with 2000 generated test tables that are a bit smaller in scope from the original db model (hence 'only' 1.3GB of spent memory)

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• How can I find the dimensions of a matrix in Python?

  - by PBD10017

  How can I find the dimensions of a matrix in Python. Len(A) returns only one variable. Edit: Hi Thanks. close = dataobj.get_data(timestamps, symbols, closefield) Is (I assume) generating a matrix of integers (less likely strings). I need to find the size of that matrix, so I can run some tests without having to iterate through all of the elements. As far as the data type goes, I assume it's an array of arrays (or list of lists).

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