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• CGRect and utesting

  - by killdash10

  I am trying to add unit tests to my iPhone project in Xcode. Everything works, its great. Except when I am adding a class.m that uses CGRect (or other structs, CGPoint etc) to the unit test target (under "Compile Sources") - I am getting a compilation error: "'CGRect' undeclared (first use in this function)". I tried messing with my unit test target in various ways, but so far I haven't been able to get past this. What am I missing?

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• htaccess url rewrite with multiple variables in url

  - by Cata

  Hello, I want to make some url rewrite rules on my .htaccess file so that this link: http://myseite.com/index.php?var1=value1&var2=value2 will become : http://myseite.com/var1/value2.html So far I have managed successfully to solve this problem but only for one variable. I also tried this code: RewriteRule ^([^/]*)/([^/]*)\.html$ /index.php?var1=$1&var2=$2 [L] But it doesn't work.. Thank you for the help!

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• From a Java programming perspective, what difference does multicast make to a networking program?

  - by pnut butter

  My manager has asked me to assess what changes would be required to add multicast support to a socket-based TCP/IP networking program that is part of a trading system. As far as I can tell, from the perspective of a Java program, it doesn't seem to matter too much whether the program is unicast or multicast. Doesn't the Java networking API make all of this transparent? By this I mean, wouldn't the change be a simple one of simply adding additional destinations for the outgoing connections?

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• recursive cumulative sums

  - by user1816377

  I need to write a program that compute cumulative sums from a list of numbers with def but ONLY with recursion. I did it, but now I need to write the same program without using the method sum, but no success so far. Any idea? my code: def rec_cumsum(numbers): ''' Input: numbers - a list of numbers, Output: a list of cumulative sums of the numbers''' if len(numbers)==0: return numbers return rec_cumsum(numbers[:-1])+ [sum(numbers)] input: 1 [1,2,3] 2 [2, 2, 2, 3] output: 1 [1,3,6] 2 [2, 4, 6, 9]

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• Including/Importing aliases and functions for both bash and zsh

  - by blueblank

  I have a directory of functions and aliases I'd like to include for both bash and zsh terminal invocations (So I don't need to put every function and alias into every separate script and to facilitate organization/tidying of .rc files) What I've tried so far hasn't worked. Just setting this out for further suggestions.

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• Is there a shorthand term for O(n log n)?

  - by jemfinch

  We usually have a single-word shorthand for most complexities we encounter in algorithmic analysis: O(1) == "constant" O(log n) == "logarithmic" O(n) == "linear" O(n^2) == "quadratic" O(n^3) == "cubic" O(2^n) == "exponential" We encounter algorithms with O(n log n) complexity with some regularity (think of all the algorithms dominated by sort complexity) but as far as I know, there's no single word we can use in English to refer to that complexity. Is this a gap in my knowledge, or a real gap in our English discourse on computational complexity?

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• Maximum number of cookies allowed

  - by Nouveau

  As far as Google searches tell me, the maximum allowed number of cookies depends very much on the browser, however I cannot find any recent data as to how much cookies are allowed on modern browsers. I need to store a somewhat large number of user preferences in cookies (for not-yet-registered users), so what would be the best way of doing that? (Also, those cookies would be accessed both via javascript client-side and php server-side)

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• What is the difference between these two statements (asp.net/c#/entity framework)

  - by user318573

  IEnumerable<Department> myQuery = (from D in myContext.Departments orderby D.DeptName select D); var myQuery = (from D in myContext.Departments orderby D.DeptName select D); What is the difference between these two statements above? In my little asp.net/C#/ EF4.0 app I can write them either way, and as far as how I want to use them, they both work, but there has to be a reason why I would choose one over the other?

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• Is it possible to cancel a BeginRead on a NamedPipeServerStream without closing the pipe?

  - by romkyns

  What the title says, really. I have a named pipe. I would like to attempt a read, but if it doesn't succeed after a timeout I'd like to still be able to use the pipe afterwards. Is this possible with NamedPipeServerStream, or do I have to rethink the entire approach? So far the only way I've found of cancelling a BeginRead is by disposing of the pipe.

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• Regular expression help

  - by dmr

  I need to do a find and replace in Notepad of Err.Number, canBeAnything, canBeAnything, Err.Description (where canBeAnything is just what it says) with Err.Number, "canBeAnything", "canBeAnything", Err.Description (basically, put quotes around canBeAnything) I got as far as the find Err.Number, .+, .+, Err.Description But I'm stuck on the replace. Any suggestions?

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• limiting a query to a specific item

  - by Dev-Ria

  I have a db with thousands of domains and data. I want to list only 100 rows of each domain. i can't use LIMIT 100 cause that only limits 100 records but I want dom1 to list 100 dom2 to list 100 dom3 to list 100 all in one query. This is what I have so far. SELECT domain COUNT(Key) AS DomCount FROM table_domain GROUP BY user,location ORDER BY domain,DomCount DESC Could I use a CASE?

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• WinForm And Looping

  - by Soo

  I have a WinForm set up and a process that loops until a button is pressed on the form. When I try to run my code, the form does not even display. I suspect this is because the code gets stuck in the loop and doesn't get far enough to display the WinForm. How can I get the form to display and the loop to run after that point?

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• List of system tables in SQLite

  - by sovanesyan

  I am trying to filter all the tables in a SQLite database based on if they are system tables or user generated ones. So far I've found out that they are the ones with the sqlite_ prefix and AllDataTypes. Has anyone done something like this? Is there a list of them? Thanks in advance.

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• Java / MySQL - How to access connection from another class?

  - by Alex

  I'm just getting my head around java (and OOP for that matter), the only thing I am familiar with is MySQL. I need to keep the DB connection open throughout the duration of the application, as well as a server socket. I'm not even sure if they both need separate classes, but here's what I have so far: http://pastebin.com/qzMFFTrY (it wouldn't all go in a code tag) The variable I need is con for line 86.

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• Does it make sense to replace sub-queries by join?

  - by Roman

  For example I have a query like that. select col1 from t1 where col2>0 and col1 in (select col1 from t2 where col2>0) As far as I understand, I can replace it by the following query: select t1.col1 from t1 join (select col1 from t2 where col2>0) as t2 on t1.col1=t2.col1 where t1.col2>0 ADDED In some answers I see join in other inner join. Are both right? Or they are even identical?

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• What runs before main()?

  - by MikimotoH

  After testing on msvc8, I found: Parse GetCommandLine() to argc and argv Standard C Library initialization C++ Constructor of global variables These three things are called before entering main(). My questions are: Will this execution order be different when I porting my program to different compiler (gcc or armcc), or different platform? What stuff does Standard C Library initialization do? So far I know setlocale() is a must. Is it safe to call standard C functions inside C++ constructor of global variables?

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• Diagram notation for events

  - by Krt_Malta

  Hi :) I have a part of my program which can be called by various events. Each event however does something different before making use of this part. How can I represent these using a diagram? I was thinking of a flowchart but as far as I know a flow chart can have one start terminal, right? Thanks a lot for the help, Regards, Krt_Malta

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• Trivial Q about redefinition.

  - by Knowing me knowing you

  Why this isn't allowed: int a = 0; int a = 0; but this is: for (int i = 0; i < 2; ++i) { int a = 0; } As far as I know code inside for loop will be executed twice whitout actually going out of its scope, so it should also be an error to define a twice. Looking forward to your answers Thanks.

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• Array help in C++

  - by user267237

  I am writing a program that is declaring an array of 100 integer numbers and filling the array with random numbers using rand(). All I have so far is: #include <iostream> using namespace std; int main() { int random_integer = rand();

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• Python how to convert this for loop into a while loop

  - by user1690198

  I have this for a for loop which I made I was wondering how I would write so it would work with a while loop. def scrollList(myList): negativeIndices=[] for i in range(0,len(myList)): if myList[i]<0: negativeIndices.append(i) return negativeIndices So far I have this def scrollList2(myList): negativeIndices=[] i= 0 length= len(myList) while i != length: if myList[i]<0: negativeIndices.append(i) i=i+1 return negativeIndices

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• SQL Server replication question.

  - by schar

  I had inherited this SQL Server where we put data in a table (Call TableA) on a database (DB-A). I can see the tableA in another database on the same server ( DB-B) gets the same data right away. Any ideas how this is implemented? I am trying to see the trace but so far no luck. Any one has an idea? At this stage I am not sure if its replication. This is a guess

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• What to do if one library is not multi-threaded ?

  - by LB

  Hi, I would like to multi-thread an application, however one library i'm using is not multi-thread capable (i don't know what's the right word ? synchronized ?). What are my options ? As far as i know there's nothing in between threads and processes (Runtime.exec) in java (no abstraction in the jvm to have something like an isolated "java process"). How would you deal with that ?

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• Is there a way to programmatically click on a combobox item?

  - by mrentropy

  Hi, I've been trying experiments with the following, but so far to no avail: sel = document.getElementById('myComboBox') sel.selectedIndex = 1; sel.options[1].selected = true; sel[1].click(); Thanks for the help!

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• read, parse and process json (java)

  - by mac

  Guys, simple situation - read a json file discover all key-value pairs compare key-value pairs I tried gson, package from json.org, but can't seem to get far with it. Can someone please provide a clear sample in Java on how to take a file, read it, end up with json objec i can get key/value pairs from thanks so much

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• Xcode save image to camera roll

  - by user1470914

  I am new to Xcode (using 4.3) and am not sure how to save an image to the device's camera roll. All that I have done so far is an IBAction for the button to save the image (the button resides in the top right of the navigation bar. This tutorial (http://www.youtube.com/watch?v=sSdwjQUXA2Y) is EXACTLY what I would like to be able to do but the code is too blurry to read properly. Any help would be greatly appreciated.

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