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• What is the difference between a private and public funtion?

  - by Kyle

  I am a new programmer, and I started in C and am now starting to enjoy JavaScript and a tiny bit of PHP more. Lately I've heard the terms 'private' and 'public' functions a lot. Could anybody give an explanation of the both and how they are of use to a programmer? And I'm probably totally wrong here... but is a (function(){}) in javascript a private function?

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• How do I prevent use of beta classes from google guava library?

  - by mjlee

  We have been using Google collections in the production for several months. We would like to start using guava for additional functions. However, I'm afraid to bring guava into our product stack b/c some developers may start to use 'beta' classes. We have various unit-tests in our code but at this point, I prefer not to include 'beta' class b/c it is subject to change in the future. Is there any easy way to do detect if the project includes any 'beta' guava classes?

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• VB.NET Function Return

  - by waves

  In order to return a value from a VB.NET function one can assign a value to the "Functions Name" or use "return value." I sometimes see these inter-mixed in the same function. Personally, I prefer the return. My question is, what is the internal difference, if any, between the two?

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• How to create a named temporary file in memory?

  - by conradlee

  I would like to use Python's tempfile module to create a temporary file that I will use for communication between processes (use of pipes is awkward). The documentation I've linked to above shows two functions that almost do what I want: tempfile.NamedTemporaryFile # For creating named tempfiles tempfile.SpooledTemporaryFile # For creating tempfiles in memory but actually I want a tempfile that is both named AND in memory. Any ideas?

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• Order of evaluation in C++ function parameters

  - by wowus

  If we have three functions (foo, bar, and baz) that are composed like so... foo(bar(), baz()) Is there any guarantee by the C++ standard that bar will be evaluated before baz?

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• Any PHP MVC framework planning to use 5.3 features?

  - by alexandrul

  I would like to get started with PHP, and 5.3 release seems to bring many nice features (namespaces, lambda functions, and many others). I have found some MVC frameworks, and some of them support only PHP 5: PHP Frameworks PHP MVC Frameworks Model–view–controller on Wikipedia but can anyone recommend one of those MVC frameworks that plans to actively use PHP 5.3 features, not just being compatible with PHP 5.3? Update Results so far: Zend Framework 2.0 (in development) Lithium (in development, based on CakePHP) Symfony (in development) FLOW3 (in development, alpha)

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• how can I use the exec function in PHP on a specific user

  - by Eric

  By default when system() and exec() functions are used in PHP the default user is SYSTEM so I can never see the result. Is there a way to change the user it runs on?

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• Qt - serialize/deserialaize text plus picture

  - by Narek

  I want to use a field (kind of QTextEdit), which is capabale of storing picture and text (like MS Word is doing) and it serializes and deserialaizes picture+text data. Is there any Qt Widget that allows us to manipulate with picture and text simultaniously and it has set/get functions which operate with serializable type? In othger words, I want to know if there exsists any Qt widget that can store picture+text and has "get" types of function that returns the content of that widgets editable area, which is a Type that could be serialized with QDataStream.

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• How do i call a method by a string name using python?

  - by gath

  I have the following class; class myStringMethod(): def __init__(self): self.func_list= [('func1','print_func1()'),('func2','print_func2()')] def print_func1(self, name): print name def print_func2(self, name): print name def call_func_by_name(self): for func in self.func_list: getattr(self, func[1])('Func Name') if __name__=='__main__': strM = myStringMethod() strM.call_func_by_name() #Nothing prints out! No functions get called out, what am i missing? gath

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• Variable timeouts in GLib

  - by Matachana

  I need to modify a GLib's time-out interval while it is in execution. Is that possible? I took a look to the source code and it seems possible to me, but is required use some non-public functions from GLib internals. Should I reimplement GTimeoutSource or there are a way to do it?

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• Can you turn a Haskell list into a series of do instructions?

  - by toofarsideways

  Can you create a list of functions and then execute them sequentially, perhaps passing them into do notation? I'm currently doing this by mapping over a list of data and am wondering if I can call somehow pass the result as a series of sequential calls?

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• Aggregate analog of row count component?

  - by JSacksteder

  I'd like to have a way to get the sum of a field stored into a variable from inside a dataflow task. The rowcount transform does this, but I can't see how to use any other aggregate functions. Is scripting a transform component my best bet?

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• How do I create both a .lib file and an .exe file in Visual C++?

  - by Spidey

  I currently have a console project which creates an .exe file; I want it to also create a .lib file so other projects, compiled as DLLs, would be able to call functions from the original project. I know it is possible, but I couldn't find how to do that. How do I tell the linker to also link a .lib?

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• How do you automatically remove the preview window after autocompletion in Vim?

  - by Ben Davini

  I'm using omnifunc=pythoncomplete. When autocompleting a word (e.g., os.), I get the list of eligible class members and functions, as expected, as well as a scratch buffer preview window with documentation about the selected member or function. This is great, but after selecting the function I want, the preview window remains. I can get rid of it with ":pc", but I'd like it just to automatically disappear after I've selected my function, a la Eclipse. I've played around with "completeopt" but to no avail.

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• Performance Cost of a Memcopy in C/C++

  - by Cenoc

  So whenever I write code I always think about the performance implications. I've often wondered, what is the "cost" of using a memcopy relative to other functions in terms of performance? For example, I may be writing a sequence of numbers to a static buffer and concentrate on a frame within the buffer, in order to keep the frame once I get to the end of the buffer, I might memcopy all of it to the beginning OR I can implement an algorithm to amortize the computation.

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• Store standalone attachments in Couchdb using ecouch Library

  - by Shree Kavi

  How do I store standalone attachments in Couchdb using eCouch library. Ecouch provides doc_create/3 and doc_Create/2, can we make use of any of these functions? Did anyone has success in storing and retrieving attachments using eCouch? Thanks in advance.

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• What can I use MySQL for?

  - by ilhan

  I know how to store data in MySQL. Shortly, I know the basics: design, storing strings, integers, date. Is there something else that could be done/achieve with MySQL? Like some kind of functions, temprory bla blas? I don't know. (I know PHP)

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• deep or shallow copying?

  - by Dervin Thunk

  Dear all. I was wondering if there are examples of situations where you would purposefully pass an argument by value (deep copy) in C. For instance, passing a char to a function is usually cheaper in space than passing a char* (if there's no need to share the value), since char is 1 byte and pointers are, well, whatever they are in the architecture (4 in my 32 bit machine). ?(When) do you want to pass (big) deep copies to functions? if so, why?

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• What's the regular way of assertion in C?

  - by Eonil

  I'm using NSAssert macro for Objective-C assertion, and it's the regular way to do this. But it's not work in C functions. What do I should use for this?

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• What is a hash function in java?

  - by Mohit Deshpande

  I have check out this Wikipedia page on it, but I still don't understand it. Can someone please help my dim-witted mind to understand the concepts of hashing, hashtable/hashmap, and hash functions? Some examples would really help.

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• String Compression using Lempel-Ziv

  - by roybot

  Im looking for a way of compressing a given string using the Lempel-Ziv Algorithm. Preferably there would only be a set of two functions, encoder and decoder. The encoder takes the string and returns an integer. The decoder takes the integer and returns the original string. Time complexity is not important. How would you implement this?

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• MySQL - Calculate the net time difference between two date-times while excluding breaks?

  - by John M

  In a MySQL query I am using the timediff/time_to_sec functions to calculate the total minutes between two date-times. For example: 2010-03-23 10:00:00 - 2010-03-23 08:00:00 = 120 minutes What I would like to do is exclude any breaks that occur during the selected time range. For example: 2010-03-23 10:00:00 - 2010-03-23 08:00:00 - (break 08:55:00 to 09:10:00) = 105 minutes Is there a good method to do this without resorting to a long list of nested IF statements?

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• Kohana 3 - Get URLs

  - by booze2go

  Hi Guys, could you help me with following questions. How do i get the: absolute/relative current url http://www.example.com/subdir/controller/action /subdir/controller/action absolute/relative application url http://www.example.com/subdir/ /subdir/ I could of course use native php to get it but i think i should rather use ko3 functions. Any idea how that works? Thanks in advance!

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• File Operations in Android NDK

  - by EnderX

  I am using the Android NDK to make an application primarily in C for performance reasons, but it appears that file operations such as fopen do not work correctly in Android. Whenever I try to use these functions, the application crashes. How do I create/write to a file with the Android NDK?

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• Dealing with &rest-parameters in common lisp

  - by Patrick

  I want define a functions that accepts &rest - parameters and delegates them to another function. (html "blah" "foo" baz) = "blahfoobaz" I did not find a better way than this one: (defun html (&rest values) (concatenate 'string "" (reduce #'(lambda(a b) (concatenate 'string a b)) values :initial-value "") "")) But this looks somewhat glumbsy to me, since line 4 does no more than concatenating the &rest parameter "values". I tried (concatenate 'string "" (values-list values) "") but this does not seem to work (SBCL). Could someone give me an advice? Kind regards

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