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Search found 14292 results on 572 pages for 'high integrity systems'.

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• Why is C++ backward compatible with C ? Why isn't there some "pure" C++ language ?

  - by gokoon

  C and C++ are different languages, blababla we know that. But if those language are different, why is it still possible to use function like malloc or free ? I'm sure there are all sort of dusty things C++ has because of C, but since C++ is another language, why not remove those things to make it a little less bloat and more clean and clear ? Is it because it allows programmers to work without the OO model or because some compilers doesn't support high-level abstract features of C++ ?

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• How can I make Access think there is a primary key

  - by user3692757

  I have a table and I'm trying to join it with another table, but it doesn't have a distinctive primary key. The two tables do share similarities, “Acct” and “Location”. If I could concatenate “Acct&Location” it would become a primary key, but Access won’t let me make a primary key from a calculation. I provided a small sample below. Each hospital has an “Acct”, but the “Acct” will show up once for each “Location”. How can I make join these in a relationship? I connected the two in a relationships and tried to “Enforce Referential Integrity”, but it indicated “No unique index found for the referenced field of the primary key”. Also, if I run a “Find UnMatched Query” it doesn’t find anything. I think its because I can’t make it realize that in combination “Acct” and “Location” can be perceived as primary keys when used in conjunction of each other. Acct 1 2 3 1 2 3 1 2 3| Location ABI ABI ABI NHO NHO NHO NTX NTX NTX I tried to load an image to illustrate it better, but I haven't made enough post.

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• License plate recognition

  - by WowtaH

  As a side-project I'm trying to create an app that scans license plates from passing cars from my living-room window. I have hooked up a high resolution camera to my system to capture (moving) images into my c# app. Now all I need is a way to interpret these images into something readable. I´m thinking about some sort of OCR-solution that is fast/accurate enough for moving images. Hope you can give me some direction!

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• C: performance of assignments, binary operations, et cetera...

  - by Shinka

  I've heard many things about performance in C; casting is slow compared to normal assignments, functional call is slow, binary operation are much faster than normal operations, et cetera... I'm sure some of those things are specific to the architecture, and compiler optimization might make a huge difference, but I would like to see a chart to get a general idea what I should do and what I should avoid to write high-performance programs. Is there such a chart (or a website, a book, anything) ?

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• What's the best practice for single sign on at one web server?

  - by Jade.Wang

  We have some apps written in classic ASP, ASP.NET and PHP. They are all in one same web server. We want to transfer between the apps who is currently log in or none, we do not need to transfer everything in the session object. What is the best way? We need secure and high performance. Thanks.

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• Are there machine (and human) readable specification languages for algorithm collections and meta-li

  - by Jabavu Adams

  Is there high-level language out there for describing algorithms, that's geared towards specification, rather than implementation? The idea would be to have a machine-readable archive of standard algorithms, with machine-readable annotations on trade-offs, and variants. I'm thinking of something like CycL / OpenCyC, but for algorithms and programming patterns.

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• How can I create a self-consistent .jar file with Eclipse?

  - by Roman

  I wrote my Java application in Eclipse. Now I would like to generate a .jar file which can be run on other systems from the command line. Is there a easy way to do it in Eclipse? In particular I am wondering what should I do with the jar files of external library that I use (should it be included into my .jar file?). Moreover, should I generate some manifest files?

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• Is it faster to construct jQuery objects using method syntax or pure html?

  - by Evan Carroll

  Using jQuery what provides for faster object construction: With the HTML code $('<dd class="foo baz" id="bar"> foobar </dd>') Or with the pure object/method variant $('</dd>').addClass('foo').addClass('baz').id('bar').text('foobar') I'm not sure how the internals work, feel free to supply a high level summary.

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• Using ActiveRecord caching library in Heroku

  - by zetarun

  Hi all, I'm studying how to use caching in Heroku for my Rails app. HTTP cache powered by Varnish is superb and I'll use it in all pages without user info but I also want to use a kind of ActiveRecord caching with Memcached using "high livel" plugins such as cache_fu or cache-money...but it seems that Heroku supports only the memcached gem (http://docs.heroku.com/memcache) and it's a very low level Memcachad API... Do you have any other solutions? Thx.

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• Subversion auto update problem (client is too old)

  - by uzay95

  svn: This client is too old to work with working copy 'D:\CemT\PublishFolder' lease get a newer Subversion client? Because i only can find subversion server systems not its command line client tools. :(

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• JRuby-friendly method for parallel-testing Rails app

  - by Toby Hede

  I am looking for a system to parallelise a large suite of tests in a Ruby on Rails app (using rspec, cucumber) that works using JRuby. Cucumber is actually not too bad, but the full rSpec suite currently takes nearly 20 minutes to run. The systems I can find (hydra, parallel-test) look like they use forking, which isn't the ideal solution for the JRuby environment.

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• Imagemagik Change an images dpi from 400 to 72

  - by rhousham

  I have an image on my server which I know the dpi of and if it's too high I want to size it down to 72 I still want to keep the same height and width of the image. Any ideas? I've played around with -resample -units and -density but don't seem to be getting anywhere and can't find any answers. Anyone out there that can help

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• Why should I use floats?

  - by wwrob

  I mean, for pixel position, sizes, etc. It's not like I'll be making a rectangle that's 100 and a half pixels high. These might as well be integers.

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• android ringing vibration activate/deactivate

  - by Javadid

  hi friends, I have a small problem... i tried searching high and low but couldnt find a way i can activate and deactivate the vibration at the time of incoming calls... The option in the menu -- Settings -- Sounds & Display mentions - PHONE VIBRATE - vibrate phone for incoming calls... i want to activate and deactivate it through code(if possible)... Thanx...

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• How to load MS Word document in C# (.NET)?

  - by Skuta

  Hi, How do I load MS Word document (.doc and .docx) to memory (variable) without doing this?: wordApp.Documents.Open I don't want to open MS Word, I just want that text inside. You gave me answer for DOCX, but what about DOC? I want free and high performance solution - not to open 12.000 instances of Word to process all of them. :( Aspose is commercial product, and 900$ is a way too much for what I do.

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• For kernel/OS is C still it

  - by Recursion

  I like operating systems and would eventually like to become a OS developer mostly working on kernels. In the future will C still be the language of choice and what else should I be trying to learn.

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• Difference between GIT and CVS

  - by jay

  What is the difference between git and cvs version control systems? I have been happily using CVS for over 10 years and have been told that GIT is much better. Could someone please explain what the difference between the two is and why one is better than the other?

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• How to secure a WCF service to be consumed by a specific application only?

  - by aaginor

  Hi folks, I have a specific Silverlight application, that is fed with data by a WCF-Service. I want to make sure, that the WCF-Service is only called by that specific Silverlight App. What is the best way to accomplish that and what do I have to do? It doesn't have to be a high security solution. Thanks in advance, Frank

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• Cannot change the height of a combo box in the VS Dialog Editor

  - by Hamish Morrison

  Any combo box I create seems to be stuck at 12 dialog units in height. Microsoft's guidelines for spacing and sizing of controls in dialog boxes state that a combo box should be 14 dialog units high. I have even tried editing the resource file in notepad and recompiling in Visual Studio without opening the resource editor - but the combo boxes are still the wrong size! Any ideas?

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• Alternatives to using stat() to get file type?

  - by Helper Method

  Are there any alternatives to stat (which is found on most Unix systems) which can determine the file type? The manpage says that a call to stat is expensive, and I need to call it quite often in my app.

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• what are LPARAM and WPARAM defined as

  - by Mark Heath

  I know I'm being lazy here and I should trawl the header files for myself, but what are the actual types for LPARAM and WPARAM parameters? Are they pointers, or four byte ints? I'm doing some C# interop code and want to be sure I get it working on x64 systems.

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• need explanation for this MySQL query .

  - by Sachindra

  I just came across this database query and wonder what exactly this query does..Please clarify .. select * from tablename order by priority='High' DESC, priority='Medium' DESC, priority='Low" DESC;

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• Lambda functions

  - by Oden

  Hey, I'm really interested in the way of using lambda functions. Does it make sense to use them in a high-level programming language? If yes, why? Is this really just a function embedded in a function (like this) or is there more behind?

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• best database design for city zip & state tables

  - by ryan a

  My application will need to reference addresses. Street info will be stored with my main objects but the rest needs to be stored seperately to reduce redundancy. How should I store/retrieve ZIPs, cities and states? Here are some of my ideas. single table solution (cant do relationships) [locations] locationID locationParent (FK for locationID - 0 for state entries) locationName (city, state) locationZIP two tables (with relationships, FK constraints, ref integrity) [state] stateID stateName [city] cityID stateID (FK for state.stateID) cityName zipCode three tables [state] stateID stateName [city] cityID stateID (FK for state.stateID) cityName [zip] zipID cityID (FK for city.cityID) zipName Then I read into ZIP codes amd how they are assigned. They aren't specifically related to cities. Some cities have more than one ZIP (ok will still work) but some ZIPs are in more than one city (oh snap) and some other ZIPs (very few) are in more than one state! Also some ZIPs are not even in the same state as the address they belong to at all. Seems ZIPs are made for carrier route identification and some remote places are best served by post offices in neighboring cities or states. Does anybody know of a good (not perfect) solution that takes this into consideration to minimize discrepencies as the database grows?

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• Css For Gridview paging

  - by arunendra

  Hi My question is, can I control the style of the paging element separately of top and bottom, I have set the paging to appear in both top and bottom of the gridview, and I want to see that the top pagination is little high up in the page, to do that I used the cssClass and set margin-top:20px and made the position: absolute, this does change the position of the top paging area and set it rightly for me, but the bottom pagination has also come up as a result and now sits inside the grid data!! Is there any way to solve this? Thanks and regards Arunendra

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