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  • what is size_t in C

    - by benjamin button
    Hi, i am getting confused with size_t in C. i know that it is returned by a sizeof operator. But what exactly it is?Is it a datatype? let's say i have a for loop int i; or size_t i;//which one should i use? for(i=0;i<some_size;i++)

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  • SQLite MYSQL character encoding

    - by Lee Armstrong
    I have a strange situation where the following code works however XCode warns it is deprecated... NSString *col1 = [NSString stringWithCString:(char *)sqlite3_column_text(compiledStatement, 0)]; However as that is the deprecated method if I set an encoding the string comes out wrong! I have tried all the encodings but none work! NSString *col1 = [NSString stringWithCString:(char *)sqlite3_column_text(compiledStatement, 0) encoding:NSASCIIStringEncoding];

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  • Error with my JQuery code in IE but not Firefox

    - by Kaz Lee
    Guys, I have this code below which works in firefox and all others except in IE. Am I making a syntaxt error somewhere? Can't seem to find it and its driving me nuts. Any help is appreciated! <script> $(document).ready(function(){ $("label:contains('Number')").html("Register:"); $("input[type='textbox']").each(function(){ var name = $(this).attr('name'); // grab name of original /* create new visible input */ var html = '<input type="checkbox" class="NetscapeFix" size="4" maxlength="5" name="'+name+'" id="'+name+'" value="1" dir="rtl" />'; $(this).after(html).remove(); // add new, then remove original input }); }); </script> Thank you, Kaz

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  • Sql joining a table

    - by benjamin button
    I have a question regarding the Sql Joins. whenever we join two different tables on some fields. what will happen exactly inside oracle which will result in the query output. will there be a temporary table created just for presenting the query output.

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  • How do I call Matlab in a script on Windows?

    - by Benjamin Oakes
    I'm working on a project that uses several languages: SQL for querying a database Perl/Ruby for quick-and-dirty processing of the data from the database and some other bookkeeping Matlab for matrix-oriented computations Various statistics languages (SAS/R/SPSS) for processing the Matlab output Each language fits its niche well and we already have a fair amount of code in each. Right now, there's a lot of manual work to run all these steps that would be much better scripted. I've already done this on Linux, and it works relatively well. On Linux: matlab -nosplash -nodesktop -r "command" or echo "command" | matlab -nosplash -nodesktop ...opens Matlab in a "command line" mode. (That is, no windows are created -- it just reads from STDIN, executes, and outputs to STDOUT/STDERR.) My problem is that on Windows (XP and 7), this same code opens up a window and doesn't read from / write to the command line. It just stares me blankly in the face, totally ignoring STDIN and STDOUT. How can I script running Matlab commands on Windows? I basically want something that will do: ruby database_query.rb perl legacy_code.pl ruby other_stuff.rb matlab processing_step_1.m matlab processing_step_2.m # etc, etc. I've found out that Matlab has an -automation flag on Windows to start an "automation server". That sounds like overkill for my purposes, and I'd like something that works on both platforms. What options do I have for automating Matlab in this workflow?

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  • Changing a Select dropdown with a jquery ui slider

    - by Chris J. Lee
    Trying to set a select dropdown with a slider. You move the jquery ui slider and then it will change the selection of the other two dropdowns. is there a current method in jquery that would set these options? Current dropdown: <select id="alert-options-frequency-opts"> <option value=""></option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> <option value="4">4</option> <option value="5">5</option> <option value="6">6</option> <option value="7">7</option> <option value="8">8</option> <option value="9">9</option> <option value="10">10</option> </select>

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  • 'cross-referencing' DataTable's

    - by Lee
    I have a DataGridView that is being filled with data from a table. Inside this table is a column called 'group' that has the ID of an individual group in another table. What I would like to do, is when the DataGridView is filled, instead of showing the ID contained in 'group', I'd like it to display the name of the group. Is there some type of VB.net 'magic' that can do this, or do I need to cross-reference the data myself? Here is a breakdown of what the 2 tables look like: table1 id group (this holds the value of column id in table 2) weight last_update table2 id description (this is what I would like to be displayed in the DGV.) BTW - I am using Visual Studio Express.

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  • Rename INDEX Column

    - by Lee
    Hey All I have a database with around 40 tables and need to rename every index column. IE USER a table has a bunch of fields like user_id | user_username | user_password | etc... I want to rename the ID columns just to id ie id | user_username | user_password | etc... But I keep getting mysql errors on the alter table command ie. ALTER TABLE database RENAME COLUMN user_id to id; Plus many different variations. Whats the best way to do this ? Hope you can advise

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  • interpreting assembly instructions

    - by David Lee
    I am trying to translate the following: Action: pushl %ebp movl %esp, %eax subl $32, %esp movl $0, -8(%eax) movl $0, -4(%eax) movl -4(%eax), %eax cmpl 32(%eax), %ebp movl -4(%ebp), %eax sall $2, %ebp addl 8(%ebp), %ebp movl (%ebp), %ebp addl %ebp, -8(%eax) addl $1, -4(%eax) What is the best way to learn assembly and translating this code?

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  • Rails activerecord includes. How to access the included columns?

    - by Lee Quarella
    I my User has_many :event_patrons and EventPatron belongs_to :user. I would like to slap together the user with one specific event patron with something like this sql statement: SELECT * FROM `users` INNER JOIN `event_patrons` ON `event_patrons`.`user_id` = `users`.`id` WHERE `event_patrons`.`event_id` = 1 So in rails I tried this: User.all(:joins => :event_patrons, :condidions => {:event_patrons => {:event_id => 1}}) But that gives me SELECT users.* instead of SELECT *: SELECT `users`* FROM `users` INNER JOIN `event_patrons` ON `event_patrons`.`user_id` = `users`.`id` WHERE `event_patrons`.`event_id` = 1 I then tried to switch the :joins with :include and got a whole jumbled mess that still returned me only the columns in User and none from EventPatron. What am I missing?

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  • Can I load a 32 bit DLL into a 64 bit process on Windows?

    - by Lee
    I recently upgraded a c# windows service to run as a 64 bit .net process. Normally, this would be trivial, but the system makes use of a 32-bit DLL written in C++. It is not an option to convert this DLL to 64 bit, so I wrapped the DLL in a separate 32 bit .net process and exposed a .net interface via remoting. This is quite a reliable solution, but I would prefer to run the system as a single process. Is there any way I can load my 32 bit DLL into a 64 bit process and access it directly (perhaps through some sort of thunking layer)?

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  • Wordpress Hooks vs. includes?

    - by Chris J. Lee
    This is somewhat a subjective question. Noticed themes like thematic and carrington use hooks to display their themes. Trying to figure out which works best for a more efficient workflow. Which seems more efficient at theming? Trying to weigh in the cons and pros of hooks vs. just including static files.

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  • freeing a memory twice

    - by benjamin button
    Hi, AFAIAK, freeing a NULL will result in nothing.i mean nothing is being done by the compiler/no functionality is performed. Still i do see some statements where people say that one of the scenario,where a memory corruption can occur is "freeing a memory twice"? Is this still true?

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  • Python/Ruby IDE (Windows)?

    - by Lee Tang
    Are there any Windows IDEs that support both Ruby and Python? I'm talking about the type of IDE that has syntax suggestions (auto-completion feature). I've tried Netbeans but it only seems to support Ruby (maybe there's a way to add Python support?)

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  • How to retrieve the TabHost object, if you're not using TabActivity?

    - by Lee Olayvar
    I am attempting to use a few of the simple android examples for Tab Views. One thing i am attempting to do different than all the examples i've seen so far, is to not use a TabActivity. I am trying to use a normal activity, which means i need to retrieve the TabHost object some how, so i can add tabs and etc to it. How can this be done? If you wanted to retrieve a view, you can simply use findViewById(R.id.blah), but how can you retrieve the TabHost object in a similar manner?

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  • Error occurs while using SPADE method in R

    - by Yuwon Lee
    I'm currently mining sequence patterns using SPADE algorithm in R. SPADE is included in "arulesSequence" package of R. I'm running R on my CentOS 6.3 64bit. For an exercise, I've tried an example presented in http://en.wikibooks.org/wiki/Data_Mining_Algorithms_In_R/Sequence_Mining/SPADE When I tried to do "cspade(x, parameter = list(support = 0.4), control = list(verbose = TRUE))" R says: parameter specification: support : 0.4 maxsize : 10 maxlen : 10 algorithmic control: bfstype : FALSE verbose : TRUE summary : FALSE preprocessing ... 1 partition(s), 0 MB [0.096s] mining transactions ... 0 MB [0.066s] reading sequences ...Error in asMethod(object) : 's' is not an integer vector When I try to run SPADE on my Window 7 32bit, it runs well without any error. Does anybody know why such errors occur?

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  • *(char**) how to understand this construct?

    - by House.Lee
    recently, while reading former's code in my current project, I encounter the problems below: while implementing the Queue, my former wrote codes like this: while(uq->pHead) { char *tmp = uq->pHead; uq->pHead = *(char **)tmp; //... } the uq-pHead has definition like: typedef struct { char* pHead; //... } Queue; Well, I'm quite confused about the usage that "uq->pHead = *(char**)tmp" , could anyone explain it to me in detail? if we assume that *(uq-pHead) = 32(i.e. ' ') , *(char**)tmp would translate this into pointer-form, but...how could it make sense? Thanks a lot.

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  • Email flow problem in Exchange 2003

    - by Hugo Garcia
    Hello colleagues, I have a problem whit some emails that are not being delivered to the user inbox. The SMTP server on the DMZ that receives email from the internet is a Symantec Brigthmail Gateway, this server reports that the message was delivered normally to the exchange server: The DMZ server forwars the incoming mail to the exchange server that is on the LAN segment, and the message tracking on the exchange server reports the email being submited to the advanced queue: I have done severals searches on google, without any luck. have any one of you guys experienced similar problems? Any help or pointers would be very appreciated. as requested, here is a transcript of a smtp session: helo 250 mail2.XXXXXXXXXXXXXXXX.XXX.XX Hello [192.168.9.6] MAIL FROM: [email protected] RCPT TO: [email protected] DATA Subject: Mensaje de Prueba Test . 250 2.1.0 [email protected] OK 250 2.1.5 [email protected] 354 Start mail input; end with <CRLF>.<CRLF> 250 2.6.0 <'[email protected]> Queued mail for delivery

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