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• C - how to convert a pointer in an array to an index?

  - by hatorade

  In the many search functions of C (bsearch comes to mind) if a result is found, a pointer to the spot in the array is returned. How can I convert this pointer to the index in the array that was searched (using pointer arithmetic, i assume).

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• do's and don'ts for writing mysql queries

  - by nik

  One thing I always wonder while writing query is that am I writing most optimized query or not? I know certain things like: 1) using SELECT field1, filed2 instead of SELECT * 2) Giving proper indexes to the tables but I am sure there are more things that should be kept in mind for writing queries, since most of the database can only grow more and optimal query will help gr8 in execution time, Can u share some tips and tricks on writing queries?

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• CallLogs in Blackberry

  - by Farhan

  Hi, i am working on CallLogs Sync Application in Blackberry and partially i have done it, one point that i didn't understand is how to add information to CallLogs. I have retrieved information from CallLogs and Store on Server but now i retrieved information from Server but how to add info to CallLogs didn't come in my mind as i retrieved all the information in Strings from Server and PhoneCallLog Constructor look like this: PhoneCallLog call = new PhoneCallLog(Date,int Type,int Duration,int Status,participantID participant,String Notes); Please tell me as soon as Possible, i will be very thankful to you.

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• How do I move from being a software developer to being a software architect?

  - by Nestor

  I mean... Should I start programming less and designing more? Should I stop reading programming books, and start reading more books about pattern designs, etc? Should I stop focusing primarily on Microsoft technologies and open up my horizons with other technologies (in order to get a broader perspective)? How should I change my mind set in general (perhaps less detail oriented) ? etc I'm looking for concrete advice, especially from your own experience!

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• How to make a row of ListView like this?

  - by Jack101

  Hello, Sorry, this's my first time to ask a question here. So, I don't have the permission to upload the image to describe. Never Mind. What I would like to make is a row of ListView like this. The block on the left is an icon. Much appreciated if you could feedback the correct XML tags. Thanks. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ------- | | some text some text | | some text some text ------- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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• display gnu diff in HTML

  - by acidzombie24

  Is there a lib i can use to diff between two pieces of code and display it in html? I am using diff - GNU diffutils version 2.7, C#, asp.net. I dont mind the code being in javascript. I would like just the output with color text + css. I'll build the page around it. Does anyone know a suitable lib?

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• Web services that implement the same interface

  - by zachary

  My friend build a web service in java I build one in .net I want them to implement the same interface then in my program change the web.config to point to one or the other. In my mind this would be done by implementing the same interface. Not sure how it would actually be done...

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• Facebook status update URL

  - by dandu

  Does Facebook provide a URL the user can access that will take him to his profile page with the "What's on your mind" box auto completed with a value provided in the URL? I need something like "http://facebook.com?status=This is my new status message".

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• How many copies of files are needed by video server?

  - by Trilok

  A quick question. How many copies of the same movie are kept in a video server (a video streaming server)? Suppose a particular video is at max requested by 1000 users at the same instant of time, how many copies would be sufficient so that parallel streams can be provided to each user? Ideally 1 copy would solve the purpose, but what is the optimum number keeping the bandwidth and simultaneous access in mind?

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• In jQuery, should i use parseFloat(el.width()) or parseInt(el.width(),10)? which one is more prefe

  - by adardesign

  I always had this question: When i dont mind the exact floating number Which one is preferred? like this code: parseFloat someValue = parseFloat(el.outerWidth())+parseFloat(ele2.css("marginRight")), parseInt someValue = parseInt(el.outerWidth(), 10)+parseInt(ele2.css("marginRight"), 10), Which method is easier for the JS engine?

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• Any tricks to stop flickering in between page transitions?

  - by SLC

  Specifically, I am using a .hta to display pages. As the content is local, pages load instantly, but there is flicker as they redraw. Are there any tricks you can use to stop it flickering or reduce the effect? I heard somewhere that page transition effects can help, but does anyone have any ideas? Keep in mind that as its a .hta file, I have more flexibility, and can run vbscript etc. and do fancy things.

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• PostGreSQL load increasing over time, why?

  - by TravisO

  It's a CentOS server (I don't know the specs) and just before anybody states the obvious, keep in mind these mitigating factors: the server does a nightly VACUUM job all the tables are indexed it's pretty much read only (meaning the DBs are not increasing in size) the number of queries being ran has been the same every month Here's a graph of the server load:

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• efficient list mapping in python

  - by Joey

  Hi everyone, I have the following input: input = [(dog, dog, cat, mouse), (cat, ruby, python, mouse)] and trying to have the following output: outputlist = [[0, 0, 1, 2], [1, 3, 4, 2]] outputmapping = {0:dog, 1:cat, 2:mouse, 3:ruby, 4:python, 5:mouse} Any tips on how to handle given with scalability in mind (var input can get really large).

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• ipad logo while submitting app

  - by buzzer

  Hi I have to submit my first iPhone app. I have tested it on iPod touch and iPhone. While submitting, is it necessary to add the iPad logo. if yes how to do it. my application is a small utility application...and I have not programmed it keeping iPad GUI guidelines in mind for example it doesn't have the landscape layout. how is it normally...if I submit an app is it automatically considered for iPad as well.

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• Ruby on Rails: Accessing production database data for testing

  - by williamjones

  With Ruby on Rails, is there a way for me to dump my production database into a form that the test part of Rails can access? I'm thinking either a way to turn the production database into fixtures, or else a way to migrate data from the production database into the test database that will not get routinely cleared out by Rails. I'd like to use this data for a variety of tests, but foremost in my mind is using real data with the performance tests, so that I can get a realistic understanding of load times.

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• How does PHP work - literature

  - by Ondrej Slinták

  I'm interested in literature (articles on internet, in magazines, books, podcasts - I don't really mind anything) that describes how PHP works internally, about its gotchas and perhaps some advanced functions. Is there anything like this out there? I tried to search on Google, but majority of articles were about starting with PHP and its basic functions. Any input is really welcome as I'm trying to understand the language internally - I'm tired of my mindless typing of code without understanding its essence.

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• Options for Cocoa-based text editor

  - by user308444

  Hello. I am working on a cocoa-based text editor. Should I base it on NSTextView or is there a more efficient option? Keep in mind that I plan to support tabs so there can be many editors open at the same time.

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• Trying to create spring project with maven

  - by Gandalf StormCrow

  Hello everyone I was just going trough http://static.springsource.org/docs/Spring-MVC-step-by-step/part1.html spring tutorial, and I thought its old I'll think something better on my own. For starters how do I start spring project with maven, which archtype should I choose? I wanna create simple spring app, write class which I will deploy to jboss, spring will instansiate it at startup .. that is what have in mind for now .. for now I need to start it first

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• Scrapy - Follow RSS links

  - by Tupak Goliam

  Hello, I was wondering if anyone ever tried to extract/follow RSS links using SgmlLinkExtractor/CrawlSpider. I can't get it to work... I am using the following rule: rules = ( Rule(SgmlLinkExtractor(tags=('link',), attrs=False), follow=True, callback='parse_article'), ) (having in mind that rss links are located in the link tag). I am not sure how to tell SgmlLinkExtractor to extract the text() of the link and not to search the attributes ... Any help is welcome, Thanks in advance

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• Other HTML serialisations?

  - by Delan Azabani

  After keeping in mind that HTML has both an SGML and XML serialisations, which are just encodings for a parser to "explode" into a DOM, I'm wondering whether there are other serialisations for HTML. A JSON serialisation? If so, are there any parsers for these alternative serialisations?

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• Why is go language so slow?

  - by oraz

  As we can see from The Computer Language Benchmarks Game: go is in average 10x slower then C go is 3x slower then Java !? How it can be bearing in mind that go compiler produces native code for execution? Immature compilers for go? Or there is some intrinsic problem with the go language?

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• What Java syntax elements would not directly translate to an equivalent Ruby syntax?

  - by Hosh

  I asked a question a few days ago about representing public static final and private static final fields in equivalent Ruby code. It got me thinking about what other syntax elements in Java might not translate directly to Ruby. Generics and Annotations come to mind. Anything else that would not translate well if you tried to port some Java code to Ruby?

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• Sources for news about network security

  - by chris.nullptr

  I am a software developer that wants to stay up-to-date on network security news. What are some of the best sources online for not only keeping tabs on newly discovered security vulnerabilities that may affect projects I'm working on, but also best-practices when developing network software. Please keep in mind that I am looking for sources that cater to the software developer not IT administration.

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• A good manual on c#

  - by I_S_W

  Hey all; i have learned the c# language moving away from java , i have learned all what's new in that language and i found it to be pretty much interesting , i would like to enthusiasm to attempt implementing some projects but yet i have no ideas in mind. does anyone happen to know a good lab manual or something similar? Thanks Alot

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• Testing a db structure before beginnning to code the app

  - by driverate

  I'm in the beginning stages of writing (and learning as I go) a Python database app using SQLite. I have the db structure planned on paper, and I have the queries I'll need in mind, but before I start coding I want to fully test the db design so I know it's right and ready. What's the best free software to use to test the db structure quickest?

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