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• Java API Method Run Times

  - by Mike

  Is there a good resource to get run times for standard API functions? It's somewhat confusing when trying to optimize your program. I know Java isn't made to be particularly speedy but I can't seem to find much info on this at all. Example Problem: If I am looking for a certain token in a file is it faster to scan each line using string.contains(...) or to bring in say 100 or so lines putting them to a local string them performing contains on that chunk.

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• ActionScript JPGEncoder +bad quality of the image

  - by Alex

  I have noticed that the quality of the images produced by the JPEGEncoder does not match that of other encoders available (i.e. php's built in image compression functions from the gd library) Any explanation ? or hints/workarounds for improving the quality of compressed images by JPEGEncoder ??

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• This is a valid C code but not a valid C++ code?

  - by claws

  In some library I'm using (written in C) its StorePGM(image, width, height, filename) char *image; int width, height; char *filename; { // something something } All functions are defined this way. I never seen such function definitions in my life. They seem to be valid to MSVC but when I compile it as C++ it gives errors. What is it? some kind of old version C?

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• Determine if a number is a prime with regex?

  - by kitlite

  I found the following code example for Java on RosettaCode: public static boolean prime(int n) { return !new String(new char[n]).matches(".?|(..+?)\\1+"); } I don't know Java in particular but understand all aspects of this snippet except for the regex itself I have basic to basic-advanced knowledge of Regex as you find it in the built-in PHP functions How does .?|(..+?)\\1+ match prime numbers?

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• Determine if current user is in Administrators group (Windows/Python)

  - by FogleBird

  I want certain functions in my application to only be accessible if the current user is an administrator. How can I determine if the current user is in the local Administrators group using Python on Windows?

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• What's the benefit of function refrence?

  - by SpawnCxy

  When I reading the code of CodeIgniter,I found some functions written as follows: function &get_instance() { global $CI, $OBJ; if (is_object($CI)) { return $CI; } return $OBJ->load; } I can understand variable refrence,but I can hardly get this through.Is it necessary to use this function style?And any benefit? Thanks.

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• reference external javascript in mvc not working

  - by user281180

  Hi I have created an extrenal javascript and inserted the path in my site.master with other scripts. However, I can`t access the functions of the file. What can be the problem? Have I done it right, though I wanted to access it directly from my view?

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• Initiatives to namespace PHP core and libraries

  - by James Maroney

  With the introduction of Object-Oriented and Namespacing capabilities in PHP, I am loving the new found cleanliness of PHP code that can be produced. The annoying thing though is that the core of PHP is still cluttered, unorganized mess of functions. Are there any initiatives to organize the PHP core and "common" libraries into namespaces and classes?

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• What does ObjectName(parameter) refer in the structure OBJECT_ATTRIBUTE?

  - by kiddo

  hi all, I found this structure called OBJECT_ATTRIBUTE in one of the nt dll functions..I was curious to know about that structure and I went through its documentation(msdn)...In the OBJECT_ATTRIBUTE structure there is a parameter called PUNICODE_STRING objectName...As per the msdn documentation..it says that the objectName "the name of the object for which a handle is to be opened" which is actually a name or some root directory,am confused with this.Can anybody explain this term "name of the object"(root directory).what it represents.

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• How do I bring a processes window to the foreground on X Windows? (C++)

  - by Lorenz03Tx

  I have the PID for the process (and the name), I want to bring it to the front on linux (ubuntu). On mac I would simply do SetFrontProcess(pid), on windows I'd enumerate the windows pick out the one I wanted and call SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE); but I'm at a loss of what to do on linux. I've looked at X Lib a bit, but most/all of those functions seem to operate on windows inside your process. Thanks in advanced.

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• How to port a simple application (which uses only stadard libc) to iPhone OS ?

  - by psihodelia

  There is a simple application written in C, which uses only standard C library functions (from stdio, stdlib, etc.) and Makefile+GCC to build it. Now, I wanna port it to iPhone OS for iPhone/iPads. Will it be seamless or are there any possible incompatibility issues?

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• What does the GDI+ background thread do?

  - by uj

  Upon initialization, GDI+ (non .NET) creates a background thread, which can optionally be suppressed subject to calling some hook functions. MSDN, however, doesn't say what this thread actually does. Google doesn't seem to know either. What is it for?

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• How can I convert BASE64 encoded HTML to GIF using ColdFusion?

  - by Eric Belair

  I am receiving a BASE64 encoded string from a WebService. The string represents an HTML page, and I can use built-in ColdFusion functions to convert and display it. However, I need a GIF representation of the HTML page, and I'm wondering if there's any way to do this using ColdFusion.

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• quick [php function] -> [javascript function] question

  - by Haroldo

  if anyone fancies doing me a really quick favour, it would be really appreciated: static function make_url_safe($z){ $z = strtolower($z); $z = preg_replace('/[^a-zA-Z0-9\s] /i', '', $z); $z = str_ireplace(' ', '-', $z); return $z; } what js functions should i be looking at to convert this function to javascript?

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• Eclipse: how to show the information about a function?

  - by user248959

  Hi, when i go with the mouse pointer on the function it doesn't show the location, class... i have this problem in one of my projects. All is executed ok so the functions are there :). Build id: 20090920-1017 Any idea? Javi

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• Using recursion to sum two numbers (python)

  - by James

  I need to write a recursive function that can add two numbers (x, y), assuming y is not negative. I need to do it using two functions which return x-1 and x+1, and I can't use + or - anywhere in the code. I have no idea how to start, any hints?

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• automatically generate header

  - by Mercer

  Hello I wonder if you could automatically generate header header class functions automatically for a given package (make a batch processing) ..? Thank you.

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• Why subtract a value from itself (x - x) in Python?

  - by endolith

  In NumPy functions, there are often initial lines that do checking of variable types, forcing them to be certain types, etc. Can someone explain the point of these lines? What does subtracting a value from itself do? t,w = asarray(t), asarray(duty) w = asarray(w + (t-t)) t = asarray(t + (w-w))

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• Where can I learn web programming from start to mastery?

  - by user353046

  I tried doing tutorials but it is unorganized and unstructured, where can I learn PHP from beginner to master? I'm looking for a site like www.w3chools.com, but somehow I feel it is incomplete, specially when it comes to more advanced functions. I know some basics but I wouldn't be able to for example make a secure online webstore, and I seem to be stuck at this point, how / where should I proceed?

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• javascript function to call in order to click OK on confirmation dialog

  - by Thiyagarajan Veluchamy

  I am writed an automated test in Selenium IDE to test one of our applications. Our app throws one of those confirmation dialogs "Are you sure you want to continue." Click OK or Cancel Selenium does not support the clicking of these dialog boxes. I have tried the following SeleniumIDE functions with no success: chooseOkOnNextConfirmation chooseOkOnNextConfirmationAndWait Is there a javascript funtion I can call within SeleniumIDE to do this, or am I out of luck.

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• Getting file extension in C language

  - by iSight

  Say there is a file called 12345.jpg. In C, how can I get the file extension so that I can compare with some file extension? If there are any inbuilt functions, kindly please let me know.

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• writing code for nm-alike command [C++]

  - by Neeraj

  Hi everyone! Out of curiosity about reverse engineering, I am thinking of writing a simple program (in C++) that takes an executable as input and produces the names of all the functions that were a part of source program of that executable. Any pointers on how should I go about it? Step-by-step approach would be much appreciated!

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• Is it possible to slice off the end of a URL with XSLT 1.0?

  - by Eric

  Title says it all really. Using only XSLT 1.0's string functions, how would I go about slicing off the end of a url? So from http://stackoverflow.com/questions/2981175/is-it-possible-to-slice-the-end-of-a-url-with-xslt-1-0 I would like to extract is-it-possible-to-slice-the-end-of-a-url-with-xslt-1-0 Is this possible?

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• Problem with C++ classes

  - by Mike

  I have a class defined called extBlock. I then make an instance of that class with this extBlock mainBlock = new extBlock(1, 1024); I get this error: error C2440: 'initializing' : cannot convert from 'extBlock *' to 'extBlock' Can anyone help me with why I am getting this error. I have seen examples online of declaring it like this with a pointer extBlock *mainBlock = new extBlock(1, 1024); But if I do it this way it does not let me call the functions of mainBlock

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• [C++] Why have pointer parameters?

  - by m00st

  Why would I want to have pointer parameters? The only reason I can see is for small functions to attempt to reduce confusion and a smaller memory footprint.

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