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Search found 15637 results on 626 pages for 'memory efficient'.

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• Printing Variable names and contents as debugging tool; looking for emacs/Python shortcut

  - by Schof

  I find myself adding debugging "print" statements quite often -- stuff like this: print("a_variable_name: %s" % a_variable_name) How do you all do that? Am I being neurotic in trying to find a way to optimize this? I may be working on a function and put in a half-dozen or so of those lines, figure out why it's not working, and then cut them out again. Have you developed an efficient way of doing that? I'm coding Python in Emacs.

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• How to figure out which lines of css is not actually affecting anything again?

  - by Shore

  I changed the html multiple times,but without deleting the related css specification. And now there are quite some useless css there. Is there an efficient solution to grep all them?

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• Convert hexadecimal notation into latitudinal hours and minutes

  - by Dave Jarvis

  Given: 0x12E7 represents 48°39' 0x3026 represents 123°26' What is the most efficient way to convert the representation of those latitudes into two variables: hours minutes Where the first example would be: hours = 48 minutes = 39 And the second example: hours = 123 minutes = 26 Thank you!

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• Best way to render Tesselated Objects (OpenGL)

  - by user146780

  I'm using the GLUTesselator for Polygons. Right now the vertex callback does glvertex2f and gltex2f. Would it be better simply to collect the verticies from the vertex callback in a std::vector then use gldrawarrays()? Or would this actually be less efficient since it has to put the verts and texture coordinates in a vector? Thanks

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• Serializing Vector<String> to String

  - by dhroller

  I need to convert a Vector to a String (an vice versa) to be stored in a CHAR field in a database. What is the most efficient way to do this ?

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• C++ struct sorting

  - by Betamoo

  I have a vector of custom Struct that needs to be sorted on different criteria each time Implementing operator < will allow only one criteria But I want to be able to specify sorting criteria each time I call C++ standard sort. How to do that? Please note it is better to be efficient in running time.. Thanks

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• Creating Auto Incrementing column in Google Appengine

  - by demos

  What is the easiest and most efficient way to create an auto-increment counter for every data row in google appengine? basically I want to give every row a unique row_number so that I can overcome the issue of only being able to get the first 1000 results in a select query. I can thus add a counter lies between condition and mine all the entires in the table.

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• Rails query to find other likes based on category

  - by Mik

  I need to do something like the following: Find other categories people like based on the categories you like. I have a likes table, which is joined to users and categories. I need to do an efficient query to find out what other categories people who liked a given category also like. Any thoughts on this would be appreciated. Thanks in advance.

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• How to test if a table is empty, using Hibernate

  - by landon9720

  Using Hibernate, what is the most efficient way to determine if a table is empty or non-empty? In other words, does the table have 0, or more than 0 rows? I could execute the HQL query select count(*) from tablename and then check if result is 0 or non-0, but this isn't optimal as I would be asking the database for more detail than I really need.

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• SQL Query Question - Select * from view or Select col1,col2.....from view

  - by Napco

  We are using SQL2005 but this question can be for any rdbms. Which is more efficient, when selecting all columns from a view Select * from view or Select col1,col2.....from view

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• Parse CSS out from <style> elements

  - by awj

  Can someone tell me an efficient method of retrieving the CSS between tags on a page of markup in .NET? I've come up with a method which uses recursion, Split() and CompareTo() but is really long-winded, and I feel sure that there must be a far shorter (and more clever) method of doing the same. Please keep in mind that it is possible to have more than one element on a page, and that the element can be either or .

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• How do I detect an array

  - by Dan

  OK so, is there an efficient way to detect on what array you're currently on by using the KeyListener? My code: http://www.javadan.pastebin.com/X68VyuGL What I am trying to do here is see if the current tile I am on is BLOCKED. Thanks.

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• How to print string in this way

  - by xRobot

  For every string, I need to print # each 6 characters. For example: example_string = "this is an example string. ok ????" myfunction(example_string) "this i#s an e#ample #string#. ok ?#???" What is the most efficient way to do that ?

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• Expand my knowledge in DB programming

  - by talgleichger

  Hi there, my name is Tal, Im working on a PHP Application the should have lots and lots of records, what DB should I use, and are there guides on the web that explains how to build efficient dbs and tables? Tnx!

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• When to Multithread and when not to Multithread c++ applications?

  - by Ashwin

  I have been in an assumption that multithreading gives a lot of flexibility and power to make efficient programs. But I am wrong. Multithreading is sometimes not desirable as it will create serious impact on the way the actual program behaves. My question? I am not sure of when to use and when not to use multithreads in applications. Please update this thread and give your opinions on multithreading and suggestions on its usage scenarios.

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• linked list problem

  - by progster

  Delete every 't'th (t1) node of a single linked list. In the resultant linked list, again delete 't'th node. Repeat this till only t-1 nodes remains. For this i have come up with: Traverse until you reach 't'th node, delete all the nodes till the end. Is there any efficient way other than this?. Can any one please help me out. Thanks.

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• Get the Integer from the end of a string (variable length)

  - by black666

  I have a string of a variable length and at the end of the string are some digits. What would be the best / efficient way, to parse the string and get the number from the end as an Integer? The String and the digits at the end can can be of any length. For example: abcd123 -- 123 abc12345 -- 12345 ab4cd1 -- 1

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• in Javascript, should I be using the for-loop construct or the forEach method for iteration?

  - by Dutch

  Is one way more efficient? Are there any limitations in one method versus the other? Thanks for any input you guys can give me ;-)

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• Is there a sorted_vector class, which supports insert() etc.?

  - by Frank

  Often, it is more efficient to use a sorted std::vector instead of a std::set. Does anyone know a library class sorted_vector, which basically has a similar interface to std::set, but inserts elements into the sorted vector (so that there are no duplicates), uses binary search to find elements, etc.? I know it's not hard to write, but probably better not to waste time and use an existing implementation anyway.

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• Iphone sdk code to capture images at 15 FPS on 3g mobile and sending to ffmpeg server .

  - by user286517

  I'm writing an app code to do video recording on iPhone much like all the available apps :) ... All im trying to do is capture screen from iPhone camera on 3g mobile and sending them to server .. but want some time efficient approach for sending to server and capturing image sequences ... its like i want to send 15 images / second to server in one single go :P i've set up server with FFMPEG and other codecs so their is no issue in generation of live video / stream .... Help me ...special reward for best helping answer

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• How to quickly re-sort a MySQL table by one of the columns?

  - by Vacilando

  What are the most efficient SQL queries that would take an existing MySQL table and re-sort it by one of the columns? Not a selection, but the whole table should be sorted by one column. Somehow using a temporary table, I guess, but what's the best way?

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• What pitfalls (if any) are there to learning C/C++ as a first language?

  - by thyrgle

  Hi, I first learned C++ then moved to C (I know kind of backwards) and then I found a thing called iTunes U and began watching programming classes to extend my knowledge and noticed that Stanford and MIT both did not teach C or C++ as an introduction to computer programming. Then I began to wonder why they didn't begin teaching C/C++ because I thought C/C++ was more efficient than Java (which Stanford taught) and Python (which MIT taught). Or maybe there is no particular reason?

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• Going from web browser to web request

  - by Patrick

  I am working on a program that automates tasks in a browser like entering text, clicking, etc and right now everything is working fine when using the Web Browser tool in Visual Studio 2010. What I'd like to know is how should I approach converting all of this so I can use send requests instead of the browser? I heard its a lot more efficient and a lot better if you are going to be using multi threading but I have so much code that already works now and am not sure how I should do this without scraping quite a bit of it.

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• Rails find all with association

  - by aaronrussell

  I have what I think is a very simple problem (famous last words)... I have a Category model that has_and_belongs_to_many Events. I want to construct a simple and efficient query that finds all categories that have 1 or more events. (using Rails 3) I'm sure I'm having a dumb moment here - any help appreciated :)

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• Best way to update record X when Y is inserted

  - by Saif Bechan

  I have a huge table that is mainly used for backup and administrative purposes. The only records that matters is the last inserted record. On every hit to order by time inserted is just too slow. I want keep a separate table with the last inserted id. In PHP I now insert, get last inserted id, and update the other table. Is there a more efficient way to do this.

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