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  • C++ Function Calling Itself

    - by Ben
    Suppose I wish to have a function that fills an array either in pattern x,y,x,y,x,ywhere x and y are variables defined by some algorithm and x,y,z,x,y,z where x, y and z are variables defined by the same algorithm. This should continue for all number of variables. Is this a viable way to implement it. int recurse_n(int n) { while(n > 0) { --n; recurse_n(n); n = 0; // Use algorithm here } }

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  • how to use ByteArrayOutputStream and DataOutputStream simultaneously (Java)

    - by Manuel
    Hi! I'm having quite a problem here, and I think it is because I don't understand very much how I should use the API provided by Java. I need to write an int and a byte[] into a byte[] I thought of using a DataOutputStream to solve the data writing with writeInt(int i) and write(byte[] b), and to be able to put that into a byte array, I should use ByteArrayOutputStream's method toByteArray(). I understand that this classes use the Wrapper pattern, so I had two options: DataOutputStream w = new DataOutputStream(new ByteArrayOutputStream()); or ByteArrayOutputStream w = new ByteArrayOutputStream(new DataOutputStream()); but in both cases, I "loose" a method. in the first case, I can't access the toByteArray method, and in the second, I can't access the writeInt method. How should I use this classes together?

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  • Regex for Date DD-MM-YYYY

    - by Josh M
    I have the following expression which will be used as date validation in the HTML5 "pattern" attribute. ?:0[1-9]|1[0-9]|2[0-9])|(?:(?!02)(?:0[1-9]|1[0-2])-(?:30))|(?:(?:0[13578]|1[02])-31))-(?:(?:0[1-9]|1[0-2])-(?:19|20)[0-9]{2} I want it to allow only valid dates, using "-" as a separator. This means up to 29th in February if it's a leap year, and 30/31 for other months respectively. Currently, it only allows years starting with 2 (2012) and months up to 12 (December). But it limits the day to 29 regardless of which month. Can anybody help me fix it?

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  • (g)Vim with version control like Eclipse

    - by Somebody still uses you MS-DOS
    I was an Eclipse user, now I have to use Vim in my machine. I used to "compare" a file I edited with a CVS repository to do merges an commit the files, using a context menu and my mouse. Is this possible in Vim? Opening a vimdiff for a file before commiting, and commit it from vim itself? And how is that supposed to work? I'm supposing I would be editing a file. Then, I want to see the modifications. I run vimdiff in gvim, and a new window (or buffer) is opened. I run the modifications, save what is applicable (using vimdiff commands), and commit running another command. Is this all transparent in vim? Do I have to keep getting out of vim to my terminal, or can all be done inside it? Do I need to use some plugins, or just really simple functions inside my vimrc?

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  • Jython project in Eclipse can't find the xml module, but works in an identical project

    - by Rob Lourens
    I have two projects in Eclipse with Java and Python code, using Jython. Also I'm using PyDev. One project can import and use the xml module just fine, and the other gives the error ImportError: No module named xml. As far as I can tell, all the project properties are set identically. The working project was created from scratch and the other comes from code checked out of an svn repository and put into a new project. What could be the difference? edit- Same for os, btw. It's just missing some path somewhere...

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  • Using TFS source control - how to remove files

    - by arame3333
    I am a lone developer, and I am now using TFS 2010, having until recently used VSS. I have not found it easy to get any books for beginners to help me use this. So I have now got my project in source control. But when I check in I get references to a number of files that I no longer use. How do I remove files from the TFS Source Control repository? So in the example below you can see lots of files from different projects that I do not want to see.

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  • Mongodb, simple IN problem

    - by afvasd
    Hi everyone I am new to mongo, this is my db design: product := { name: str group: ref, comments: [ ref, ref, ref, ref ] } comments := { ... a bunch of comments stuff } tag := { _id: int, #Need this for online requests tag: str, products: [ {product: ref, score: float}, ... ], comments: [ {comment: ref, score: float}, ...], } So my usage pattern is: GIVEN a product, find comments that have certain tag and sort them accordingly. My current approach involves: Look for that tag object that has tag=myTag pull all the comments out, sorted look for that product where product.name=myProduct pull all the comments out (which are dbrefs by the way) loop through the result of 2, and checking if they are in 4, (this I can do a limit 10) etc. It's pretty inefficient. Any better methods?

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  • What is the right way to implement communication between java objects?

    - by imoschak
    I'm working on an academic project which simulates a rather large queuing procedure in java. The core of the simulator rests within one package where there exist 8 classes, each one implementing a single concept. Every class in the project follows SRP. These classes encapsulate the behavior of the simulator and inter-connect every other class in the project. The problem that has arisen is that most of these 8 classes are, as is logical i think, tightly coupled and each one has to have working knowledge of every other class in this package in order to be able to call methods from it when needed. The application needs only one instance of each class so it might be better to create static fields for each class in a new class and use that to make calls -instead of preserving a reference in each class for every other class in the package (which I'm certain that is incorrect)-, but is this considered a correct design solution? or is there a design pattern maybe that better suits my needs?

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  • What do you name your files when using MVC?

    - by sprugman
    When using the MVC pattern, which I'm not terribly experienced with, I find myself naming things like this: /app/views/widget.php /app/models/widget.php /app/controllers/widget.php That appeals to me because it's easy to find associated classes, and I lean towards shorter names when practical. However, when I'm looking in my IDE, I see three different files called widget.php, which is confusing. I'm tempted to add "_v", "_c", "_m" or something to each name. How do you handle this? FWIW, I'm using CodeIgniter at the moment, and I don't know if there are any special benefits to using a particular convention, or any standard practices. Regardless, I'm intersted in the best-practices from various platforms.

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  • Is it possible to create a branch from a tag in TortoiseSVN without first checking out the tag from

    - by Scott Vierregger
    Our trunk directory contains about 100mb of code and we create tags from the trunk directory. Normally, this is not an issue because a tag takes up no space until you need to use it for something. Since branches are created from tags in SVN, how can I create a branch from a tag wtihout first checking out the tag? It appears I need to do a Tortoise Update from Windows Explorer to get the tag down to my local machine before I can use Tortoise Branch/Tag... to create a branch from it. This seems illogical since we don't make changes to tag folders, and it requires that I check out 100mb of code, only to create a branch, and then check out another 100mb of code in the branch folder, where the changes will actually be made. Ideally, I'd be able to create a branch directly in the repository via RepoBrowser - but I can't see an option for it there. Am I missing something?

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  • Conditional on WebClient

    - by CarryFlag
    Given: thin client (JS) model services client use services. services use model. Model consists of (for sample): Rect Circle ... Ellipse services: class CanvasProviger { public Canvas getCanvas() { return new Canvas(); } } model: class Canvas ... { private List < Figure > figures = new List < Figure >; ... } class Circle extends Figure { private int x, y, r; } class Rect extends Figure { private x, y, w, h; } client: ... var figure = MyJSRPCImpl.getCanvas().nextFigure(); if(figure == JSLocalModel.Rect) { drawRect(figure); } else if(figure == JSLocalModel.Circle) { drawCircle(figure); } ... How else can do way conditional? In rich client I used pattern Visitor. // my bad english, I know =(

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  • What are the merits of using the various VCS (Version Control Systems) that exist to track Drupal pr

    - by ZoFreX
    I'm trying to find the best version control strategy for my workflow with Drupal. I have multiple sites per install and I'm pretty sure I'll have a separate repository for each website. As far as I know, the VCSs worth considering are: SVN Bazaar (bzr) Git Mercurial (hg) I know how these compare to each other in general, but want to learn their merits/demerits for Drupal. If you're using (or have used) any of these for Drupal: What is your setup? What about the VCS you chose works well for managing Drupal projects? What doesn't?

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  • git is very very slow

    - by dorelal
    My project is six months old and git is very very slow. We track around 30 files which are of size 5 MB to 50 MB. Those are binary files and we keep them in git. I believe those files are making git slow. Is there a way to kill all files of size 5MB from the repository. I know I would lose all of these files and that is okay with me. Ideally I would like a command that would list all the big files ( 5MB) . I can see the list and then I say okay go ahead and delete those files and make git faster.

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  • Eclipse and SVN: Missing .project file.

    - by DHC
    Hi, I'm working on a uni project with a few other people using SVN. Much to my annoyance the .project file was removed from the repository since "it contains platform specific information". However, this has obviously broken my setup in Eclipse, giving me the error: Problems occurred opening the selected resources. The project description file (.project) for '___' is missing. This file contains important information about the project. The project will not function properly until this file is restored. Any suggestions? Thank you.

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  • How to run a module

    - by Jimmy
    I have a module file containing the following functions: def replace(filename): match = re.sub(r'[^\s^\w]risk', 'risk', filename) return match def count_words(newstring): from collections import defaultdict word_dict=defaultdict(int) for line in newstring: words=line.lower().split() for word in words: word_dict[word]+=1 for word in word_dict: if'risk'==word: return word, word_dict[word] when I do this in IDLE: >>> mylist = open('C:\\Users\\ahn_133\\Desktop\\Python Project\\test10.txt').read() >>> newstrings=replace(mylist) ### This works fine. >>> newone=count_words(newstrings) ### This leads to the following error. I get the following error: Traceback (most recent call last): File "<pyshell#134>", line 1, in <module> newPH = replace(newPassage) File "C:\Users\ahn_133\Desktop\Python Project\text_modules.py", line 56, in replace match = re.sub(r'[^\s^\w]risk', 'risk', filename) File "C:\Python27\lib\re.py", line 151, in sub return _compile(pattern, flags).sub(repl, string, count) TypeError: expected string or buffer Is there anyway to run both functions without saving newstrings into a file, opening it using readlines(), and then running count_words function?

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  • RFC822 Timezone Parsing in Java

    - by Jamen
    Hi, I have a JS date that is being converted by Dojo into RFC822 format. The function call - dojo.date.toRfc3339(jsDate), generates the following date - 2007-02-26T20:15:00+02:00. I have an application that uses a Java date SimpleDateFormat to parse in the dates generated above. I am having problems parsing this date format due to the timezone. I have attempted to use yyyy-mm-DD'T'hh:mm:ssZ This fails as the 'Z' for timezone doesn't expect a ':' character. Does anyone know how I would specify a pattern to handle a RFC822 date with the ':'? Thanks Jamen

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  • Wordpress Custom Type permalink containing Taxonomy slug

    - by treznik
    I'm trying to create a permalink pattern for a Custom Type, that includes one of its taxonomies. The taxonomy name is known from the start (so I'm not trying to add or mix all of its taxonomies, just a specific one), but the value will by dynamic, of course. Normally, the Custom Type permalink is built using the rewrite arg with the slug param, but I don't see how I could add a dynamic variable in there. http://codex.wordpress.org/Function_Reference/register_post_type I'm guessing a custom solution is required, but I'm not sure what the best unintrusive approach would be. Is there a known practice for this or has anyone built something similar recently? I'm using WP 3.2.1 btw.

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  • How do I search within svn logs

    - by user369311
    I want to be able to search within the commit logs of svn. I know you can do that on tortoise, but couldn't find a way using the command line. We are moving to a two-tiered repository approach, so that the stable branch will only get stories fully completed and tested. To achieve that, we would need a way to search within the commit messages for the story code (eg:#s1322) and get a list of the revisions to be used in a subsequent merge command. Ex: searchsvnapp http://[repo location root] #s1322 result: 4233,4249,4313

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  • What data (if any) persists across web-requests in Ruby on Rails?

    - by Daniel Beardsley
    I decided to use the singleton design pattern while creating a view helper class. This got me thinking; will the singleton instance survive across requests? This led to another question, Which variables (if any) survive across web requests and does that change depending on deployment? (Fastcgi, Mongrel, Passenger, ...) I know that Controller instance variables aren't persisted. I know Constants are persisted (or reloaded?). But I don't know about class variables, instance variables on a class, Eigenclasses, ...

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  • Can Perforce remove a version entry (like ClearCase Destroy)?

    - by Tim
    I submitted a Changelist in Perforce, but I forgot to remove a couple of files from the list first. I want to undo those changes. I understand that Perforce allows me to "rollback" -- but that just submits another change to the file, cluttering my branch. This is a file I did not intend to change at all. When I go to integrate back into the baseline, this file shows up as needing to be integrated (even though it's the same as what's on the baseline). In Clearcase, I had the ability to simply issue a "destroy" command on the specific version of the file, nuking it from the repository, as if had never been (yes, I realize this is scary from a revision control perspective - I understand the risks). Is there an equivalent command in Perforce? Or am I trying to do something expressly forbidden?

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  • Regex: Match opening/closing chars with spaces

    - by Israfel
    I'm trying to complete a regular expression that will pull out matches based on their opening and closing characters, the closest I've gotten is ^(\[\[)[a-zA-Z.-_]+(\]\]) Which will match a string such as "[[word1]]" and bring me back all the matches if there is more than one, The problem is I want it to pick up matchs where there may be a space in so for example "[[word1 word2]]", now this will work if I add a space into my pattern above however this pops up a problem that it will only get one match for my entire string so for example if I have a string "Hi [[Title]] [[Name]] [[surname]], How are you" then the match will be "[[Title]] [[Name]] [[surname]]" rather than 3 matches "[[Title]]", "[[Name]]", "[[surname]]". I'm sure I'm just a char or two away in the Regex but I'm stuck, How can I make it return the 3 matches. Thanks

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  • Multiple Concurrent Changes Using SVN, GIT, and CVS

    - by KlaxSmashing
    At work, we are using SVN, CVS, and GIT because there any many projects that were started at various times. Anyway, a common sequence that occurs is as follows: Working on task A, making changes to project Has new task B, some bug or functionality needs to be done on project, independent of task A but may affect same set of files Check in task B Check in task A Unfortunately, what I do at this time is two maintain 2 working copies of each project. So I can always work on task B from a clean copy. As you can imagine, this is wasteful and also, does not scale well (task C, D, E, etc.) For each of these versioning systems, are there commands that can help me do the following: "Save" task A, reverting working copy to current repository Work on task B, check in changes "Restore" task A changes back to working copy

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  • Queues And Wait Handles in C#

    - by Michael Covelli
    I've had the following code in my application for some years and have never seen an issue from it. while ((PendingOrders.Count > 0) || (WaitHandle.WaitAny(CommandEventArr) != 1)) { lock (PendingOrders) { if (PendingOrders.Count > 0) { fbo = PendingOrders.Dequeue(); } else { fbo = null; } } // Do Some Work if fbo is != null } Where CommandEventArr is made up of the NewOrderEvent (an auto reset event) and the ExitEvent (a manual reset event). But I just realized today that its not thread safe at all. If this thread gets interrupted right after the first (PendingOrder.Count 0) check has returned false. And then the other thread both enqueues an order and sets the NewOrderEvent before I get a chance to wait on it, the body of the while loop will never run. What's the usual pattern used with a Queue and an AutoResetEvent to fix this and do what I'm trying to do with the code above?

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  • How to migrate a codebase from one svn repo to another preserving history?

    - by chotchki
    I have a branch in a badly structured svn repo that needs to be stripped out and moved to another svn repository. (I'm trying to clean it up some). If I do an 'svn log' and not stop on copy/rename I can see all 3427 commits that I care about. Is there some way to dump the revisions out, short of writing some major scripts? I would follow the advice in this question but this branch has been moved all over the place and I would like to preserve the moves as well. Any ideas?

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  • GIT sharing configuration data

    - by user569980
    Hi, I just started using GIT for my versioning and I want to program some tools that work on top of it. Here is my question: Which information in the .git/config is shared to a remote repo? Is any? Is there a special way to push information to that repo? The reason I am asking is that I would like to add a "unique stamp" to the config of a repo. Also the remote repo and everybody pulling that project should have the stamp. Is that possible? If not, is there any other way to identify a repository? Having a .git folder, I want to decide whether this git repo is the same as a previously specified remote repo (the same means created by pulling the remote repo, changes are okay, of course).

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