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• display 25 randomnumbers from an array

  - by qwerty

  Hello, I have in C++ an array of 100 elements, so v[1], ... ,v[100] contains numbers. How can i display, 25 random numbers from this array? So i wanna select 25 random positions from this array and display the values.. How can i do this in C++? Thanks!

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• ordering array keys?

  - by fayer

  i want to create an array with 2 keys and i want them in following order: $array['higher']; $array['escalate']; how could i accomplish this without creating any value. i want to add values to the array with later on... $array['higher'][] = 'some_value'; $array['escalate'][] = 'some_value'; ...but first i need to create the keys in that order. thanks in advance!

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• PHP $array[0] in $string for JSON

  - by user1907696

  I am trying to use PHP to make a JSON file. Part of the code is as follow $array = array("hello", "world"); $string='{"person": [ { "name":'$array[0];', "age":'$array[1];' } ] }'; The file created. However, $array[0] and $array[1] doesn't return the values "hello" and "world" but as $array[0] and $array[1] Any idea? Thanks

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• I'm trying to do a solr search such that results are shown if a certain field has ANY value

  - by Akeem

  I'm running a search with a type field. I'd like to show results of a certain type ONLY if two other field have values for them. So in my filter query I thought it would be(type:sometype AND field1:* AND field2:*) but wildcard queries can't start with the *.

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• Getting all rows from a Table where the column contains only 0

  - by Auro

  I got a little problem i need a sql query that gives all rows back that only contains 0 in it. the column is defined as varchar2(6) the values in the column looks like this: 0 00 00 100 bc00 000000 00000 my first solution would be like this: Oracle: substr('000000' || COLUMN_NAME, -6) = '000000' SQL Server: right('000000' + COLUMN_NAME, 6) = '000000' is there an other way? (it needs to work on both systems)

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• Treating a file of Java floats as a lazy Clojure sequence.

  - by Cumbayah

  Hi; What would be an ideomatic way in Clojure to get a lazy sequence over a file containing float values serialized from Java? (I've toyed with a with-open approach based on line-reading examples but cannot seem to connect the dots to process the stream as floats.) Thanks.

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• Adding Items To A Combo Box Without Code?

  - by Soo

  I want some default values in my combo boxes but can't seem to figure out how to do this without writing a module that populates the combo boxes. How can I manually fill in the combo boxes so I don't have to use code to do something so simple. Thanks

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• Take user input and write to file from javascript inside a pdf?

  - by dazedandconfused

  Is it possible to have a pdf file that asks a user a set of questions and then writes their answers to a file, then next time it is viewed loads those answers as default values? I know pdfs can include javascript and have figured out how to add javascript to a pdf with iText (http://itextpdf.com/) but don't know how to prompt for user input or write to a file from inside the pdf. Any help would be appreciated.

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• Deleteing cache upon submit

  - by user279521

  I have an asp.net web form (c#, .NET framework 3.5) that returns to itself after the user clicks the submit button. I think that some values of the form are cached (some controls in a "placeholder" are out of position... meaning they have moved slightly up or down on the web form). How can I delete the cache after user clicks submit, and ensure that the form reloads fresh, after submit?

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• How to log SQL output to text file on client from C#

  - by Rob Packwood

  I have a large auditing stored procedure that prints values and runs some SELECT statements. When running within SQL Management Studio we have the use select to display "Results to Text" so all of the SQL results and print statement display in one place. Now I need to have some C# code also call this auditing procedure at the end of the process and basically store all data that would be in the "Results to Text" window into a .txt file. How can this be done?

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• Create Oracle Function by checking increment value

  - by Atul

  How to check in Oracle Function whether value is increasing in particular field for last 3 year or not. Suppose one table is company and if we want to consider only values if profit of past 3 year of company is in increasing manner.

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• javascript url parsing

  - by Ra

  Hi, I have a url like http://mywebsite.com/folder1/folder2/index how to parse this above url and get all the values separately? I want the output like http, mywebsite.com, folder1, folder2, index Thanks in adavance

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• Mocking ISession.Query<T>() for testing consumer

  - by TheCloudlessSky

  I'm trying to avoid using an in memory database for testing (though I might have to do this if the following is impossible). I'm using NHibernate 3.0 with LINQ. I'd like to be able to mock session.Query<T>() to return some dummy values but I can't since it's an extension method and these are pretty much impossible to test. Does anyone have any suggestions (other than using an in memory database) for testing session queries with LINQ?

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• in R, how can i save the value of "print"

  - by alex

  in R , when i use "print", i can see all the values, but how can i save this as a vector for example, in for loop, for (i in 1:10), i want the value of A , when i= 1,2,3,4..... but if i use the x=A, it only have the final value of A which is the value when i = 10. so , how can i save the vaule in print(A)

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• C++[MSVC2010]: How does switch compile and how optimized and fast is it?

  - by ekul

  As I found out that I can use only numerical values in C++'s switch statements, I thought that there then must be some deeper difference between it and a bunch of if-else's. Therefore I asked myself: (How) does switch differ from if-elseif-elseif in terms of runtime speed, compile time optimization and general compilation? I'm mainly speaking of MSVC here.

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• Return 0 when a value of a cell is negative

  - by Robert

  I have a google spreadsheet that uses this function: =SUM(E:E) - SUM(C:C) It adds up all the values of column E and column C and them subtracts the difference. I would like to be able to return a 0 if the difference is negative.

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• What's the consequence when Core Data detects an optimistic locking failure when trying to save?

  - by dontWatchMyProfile

  I get it: When a managed object context saves, the snapshots of all edited objects are compared against the values in the persistent store to see if the PS has changed since the snapshot was made. If it did change, then there's a conflict and optimistic locking failed, according to Apple. But now, what's the consequence of this? What happens next? What are my options in this case?

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• MySQL: How to do a conditional update?

  - by Tom

  Hi, I'm trying to a create an update statement along the following lines: TABLE car: id | owner_id | type | status An owner can have multiple cars. UPDATE car c SET c.type = 1 WHERE c.owner_id IN ($ids) AND c.status = [1 IF IT EXISTS, ELSE 0] $ids is reasonably small (under 50 values). It seems simple but I can't seem to get my head around it because I can't use a SELECT subquery with an UPDATE to the same table. Anyone? Thanks

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• how to call a c++ file from python without using any of the spam bindings?

  - by mekasperasky

  i have this encryption algorithm written in C++ , but the values that has to be encrypted are being taken input and stored in a file by a python program . Thus how can i call this c++ program from python?

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• Linux: Can Recvmsg be used to receive the IP_TOS of every incoming packet

  - by Mayutan

  Can one use recvmsg() to obtain the IP_TOS field of every incoming packet or does it just show the IP_TOS value that is set for the particular socket. If not, does anyone know of a solution to obtain the IP_TOS values of every incoming packets. I am using a UDP application and therefore do not get to view the IP_TOS field at the application layer as is the case with TCP. Thanks.

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• How to avoid circular reference when excel cell update

  - by Nimo

  Hi, I'm writing a set of functions in c++ which can be called by excel. However, these functions are asynchronous, therefore no immediate return values available. Once a result is available I used a callback function through VBA which update the result to the relevant cell which called the functions. But, here I'm having circular function calling problem, because when I update the cell. excel automatically call the original function once again. Please help me to get around this problem Thank You

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• Actual AccessDataSource Query With Replaced Parameters

  - by Steven

  I am getting an "Invalid SQL statement" error in my VB code. I have set several SelectQuery parameters. How can I get the actual query with the parameters replaced with actual values?

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• how to send 2-3 param's to Winform C# program ?

  - by Gold

  hi how to send 2-3 param's to Winform C# program ? for example: i'll send something like MyProg.exe 10 20 "abc" and in my program i can receive those values (i dont want to show MyProg.exe - it will work background) thank's in advance

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• C++ STL list vs set

  - by mokaschitta

  Hi, what of those two is faster for random insertions and deletions? I guess list, having the values as the keys as it is with sets seems to be attractive too though. Is performance similar for iterating over the whole container? Thanks!

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• Is there a way to do an "INSERT...ON DUPLICATE KEY UDPATE" in Zend Framework?

  - by danielrsmith

  I would like to use "ON DUPLICATE KEY UPDATE" in Zend Framework, is this possible? Example INSERT INTO sometable (...) VALUES (...) ON DUPLICATE KEY UPDATE ...

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