Search Results

Search found 19603 results on 785 pages for 'variable length'.

Page 246/785 | < Previous Page | 242 243 244 245 246 247 248 249 250 251 252 253  | Next Page >

• Closure and nested lambdas in C++0x

  - by DanDan

  Using C++0x, how do I capture a variable when I have a lambda within a lambda? For example: std::vector<int> c1; int v = 10; <--- I want to capture this variable std::for_each( c1.begin(), c1.end(), [v](int num) <--- This is fine... { std::vector<int> c2; std::for_each( c2.begin(), c2.end(), [v](int num) <--- error on this line, how do I recapture v? { // Do something }); });

  Read the article

• How to find why NSMutableData is invalid

  - by 4thSpace

  I access a RESTFUL url and get back results. The results are in JSON. I turn the response into a string via: - (void)connectionDidFinishLoading:(NSURLConnection *)connection { NSString *json = [[NSString alloc] initWithBytes:[self.receivedData mutableBytes] length:[self.receivedData length] encoding:NSUTF8StringEncoding]; The json variable has a value of 0x0. When I mouse over it, I see <Invalid CFStringRef. How can I debug this to tell why it is invalid? I render the JSON given back through the browser in A JSON parser. That checks out fine. Results are given back by entering an ID in the URL. Other IDs return results without issue. The result set is fairly large.

  Read the article

• Access inner function variables in Javascript

  - by Elazar Leibovich

  In many frameworks, internal function variables are used as private variables, for example Raphael = (function(){ var private = function(a,b) {return a+b;}; var public = function(a) {return private(a,a);} var object = {mult2:public}; return object; })(); here, we cannot access from the global namespace the variable named private, as it is an inner variable of the anonymous function in the first line. Sometimes this function is contains a big Javascript framework, so that it wouldn't pollute the global namespace. I need to unit tests some object Raphael uses internally (in the above example, I wish to run unit tests on the object private). How can I test them?

  Read the article

• Help modifying QuartzDemo example application

  - by BittenApple

  Can anyone please, oh sweet pain, please take me out of my misery by writing a simple example on how the heck you pass a number (int value) which gets created in 1 .m file to another .m file. In the apple demo application called QuartzDemo, there is a file called QuartzImages.m This file has the following line of code: [CODE]CGPDFPageRef page = CGPDFDocumentGetPage(pdf, 1);[/CODE] Notice the (pdf, 1) in that line. This number should be replaced with an integer variable. Now, there is also a file called MainViewController.m. In that file, there is a method? called -(void)viewDidLoad In that method, I want to assign a number to the integer variable which would replace the damn "1" with whatever number I want. I have been pulling my hair trying to get this done, reading beginning iPhone 3 Development book, dev documentation and God knows what not, without results. Any help would be greatly appreciated... Sigh.

  Read the article

• Need some help synch'ing outer loop counter with dialog.onconfirm()

  - by Chris Barnhill

  I am writing a game for Facebook. IN the following code, I have a problem. I have a for loop executing, and in that loop, I call a dialog and implement 'onconfirm' for the dialog. The problem is that I need to access th e loop counter inside of the onconfirm function. But because the onconfirm is called outside of the scope of the for loop, the counter value is no longer valid because it's been incremented. I need some way to pass the counter value to the dialog onconfirm as it was at the time the dialog was displayed, not after the loop has finished. Or maybe someone has a better solution. Any help would be appreciated. Thanks. function unloadCargo() { //debugger; var actionPrompt = document.getElementById('action-prompt'); actionPrompt.setTextValue('Unloading cargo...'); var ajax = new Ajax(); ajax.responseType = Ajax.JSON; ajax.ondone = function(data) { debugger; if(data.unloadableCargo.length == 0) { loadCargo(); } else { //console.log('unloadable cargo='+dump(data.unloadableCargo)); var i = 0; var j = 0; var ucCount = data.unloadableCargo.length; for(i = 0; i < ucCount; i++) { cargoDialog = new Dialog(); cargoDialog.showChoice('Unload Cargo', 'Unload ' + data.unloadableCargo[i].goods_name + ' at ' + data.unloadableCargo[i].city_name + ' for ' + data.unloadableCargo[i].payoff + 'M euros?'); cargoDialog.onconfirm = function() { //console.log('unloadable cargo onconfirm='+dump(data.unloadableCargo)); var ajax = new Ajax(); var param = {"city_id": data.unloadableCargo[i].city_id, "goods_id": data.unloadableCargo[i].goods_id, "payoff": data.unloadableCargo[i].payoff}; ajax.ondone = function(demandData) { var demands = document.getElementById('demands'); var innerXhtml = '<span>'; for(var j = 0; j < demandData.demands.length; j++) { innerXhtml = innerXhtml + ' <div class="demand-item"><div class="demand-city">' + demandData.demands[j].city + '</div><div class="demand-pay">' + demandData.demands[j].cost + '</div><div class="demand-goods">' + demandData.demands[j].goods + '</div></div>'; } innerXtml = innerXhtml + ' </span>'; demands.setInnerXHTML(innerXhtml); // update balance loadCargo(); } ajax.post(baseURL + "/turn/do-unload-cargo", param); } cargoDialog.oncancel = function() { loadCargo(); } } //loadCargo(); } } ajax.post(baseURL + '/turn/unload-cargo'); }

  Read the article

• Unmanaged C++ instantiation question

  - by Jim Jones

  Want to verify that my understanding of how this works. Have an unmanaged C++ Class with one public instance variable: char* character_encoding; and whose only constructor is defined as: TF_StringList(const char* encoding = "cp_1252"); when I use this class in either managed or unmanaged C++, the first thing I do is declare a pointer to an object of this class: const TF_StringList * categories; Then later I instantiate it: categories = new TF_StringList(); this gives me a pointer to an object of type TF_StringList whose variable character_encoding is set to "cp_1252"; So, is all that logic valid? Jim

  Read the article

• Type Declaration - Pointer Asterisk Position

  - by sahs

  Hello, in C++, the following means "allocate memory for an int pointer": int* number; So, the asterisk is part of the variable type; without it, that would mean something else (that's why I usually don't separate the asterisk from the variable type). Then what is the reason the asterisk is considered something else, instead of being part of the type? For example, it seems better, if the following meant "allocate memory for two int pointers": int* number1, number2; Am I wrong?

  Read the article

• Get last element of pipeline in powershell

  - by dozacinc

  Hi, This might be weird, but stay with me. I want to get only the last element of a piped result to be assigned to a varaiable. I know how I would do this in "regular" code of course, but since this must be a one-liner. More specifically, I'm interested in getting the file extension when getting the result from an FTP request ListDirectoryDetails. Since this is done within a string expansion, I can't figure out the proper code. Currently I'm getting the last 3 hars, but that is real nasty. New-Object PSObject -Property @{ LastWriteTime = [DateTime]::ParseExact($tempDate, "MMM dd HH:mm",[System.Globalization.CultureInfo]::InvariantCulture) Type = $(if([int]$tempSize -eq 0) { "Directory" } else { $tempName.SubString($tempName.length-3,3) }) Name = $tempName Size = [int]$tempSize } My idea was doing something similar to $tempName.Split(".") | ? {$_ -eq $input[$input.Length-1]} that is, iterate over all, but only take out where the element I'm looking at is the last one of the input-array. What am I missing ? Fire at will /M

  Read the article

• How can I possibly sort this in JavaScript?

  - by orokusaki

  I've been pounding my head on the wall trying to figure out how to sort this in JavaScript (I have to work with it in this format unfortunately). I need to sort it based on Small, Medium, Large, XL, XXL (Small ranking the highest) in each variationValues size field. The problem is that I need to sort the variationCosts and variationInventories at the same time to match the new order (since each value in order corresponds to the values in the other fields :( Input I have to work with var m = { variationNames: ["Length", "Size" ], variationValues: [ ["26.5\"", "XXL"], ["25\"", "Large"], ["25\"", "Medium"], ["25\"", "Small"], ["25\"", "XL"], ["25\"", "XXL"], ["26.5\"", "Large"], ["26.5\"", "Small"], ["26.5\"", "XL"] ], variationCosts: [ 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00 ], variationInventories: [ 10, 60, 51, 10, 15, 10, 60, 10, 15 ], parentCost: 20.00 }; Desired output var m = { variationNames: ["Length", "Size" ], variationValues: [ ["25\"", "Small"], ["26.5\"", "Small"], ["25\"", "Medium"], ["25\"", "Large"], ["26.5\"", "Large"], ["25\"", "XL"], ["26.5\"", "XL"] ["25\"", "XXL"], ["26.5\"", "XXL"], ], variationCosts: [ 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00, 20.00 ], variationInventories: [ 10, 10, 51, 60, 15, 15, 15, 10, 10 ], parentCost: 20.00 };

  Read the article

• javascript image source

  - by udhaya

  img src tag i want, when click on image the source of the image in javascript variable i want to use the src in javascript

  Read the article

• Why Doesn't This Java Code Skip Lines with #?

  - by Nathan

  I'm trying to allow an external .txt file that is read by a Java script be able to have some comments in the beginning of the file so others can easily edit it and add more to it. But if the file contains # (the sign designated for a line that is a comment) it just returns the error that there is a "Format Error in file" (the IOException - so it is getting past that first "IF"...) Can someone help? Here's the portion of the code that deals with commenting lines out of the .txt file being called earlier in the script: while ((line = br.readLine()) != null) { line = line.trim(); if (line.length() < 1 || line.charAt(0) == '#') { // ignore comments continue; } final String[] parts = line.split("="); if (parts.length != 2) { throw new IOException("Format error in file " + JLanguageTool.getDataBroker().getFromRulesDirAsUrl(getFileName()) + ", line: " + line); }

  Read the article

• Elements added with appendTo() not immediately available

  - by Zip Gun Jim

  I'm having a problem with elements added with appendTo() not being immediately available in the DOM. First, I'm reading some data from a JSON file and then appending some html to a div. jsonUrl = "js/performers.json"; $.getJSON(jsonUrl, function(json) { $.each(json.performers, function(i, performer) { var html = '<div class="performer_mini">'; html += '<img src="' + performer.thumbnail + '" alt="' + performer.name + '" /><br />'; html += performer.name + '<br /></div>'; $(html).appendTo("div#performer_spotlight"); }); }); Then I'm calling a random shuffler plugin to show one of the added divs at a time. $("#performer_spotlight").randomShuffler(".performer_mini", 3000, 3000, 9000); The random shuffler does the following: (function($) { $.fn.randomShuffler = function(shuffledElements, fadeInTime, fadeOutTime, timeout) { fadeInTime = fadeInTime || 3000; fadeOutTime = fadeOutTime || 3000; timeout = timeout || 9000; $(shuffledElements).hide(); var $old_element; var $new_element; var old_index = 0; var new_index = 0; function shuffleElement() { $old_element = $new_element; old_index = new_index; while ($(shuffledElements).length > 0 && old_index == new_index) { // don't display the same element twice in a row new_index = Math.floor(Math.random()*$(shuffledElements).length); } $new_element = $(shuffledElements + ":eq(" + new_index + ")"); if ($old_element != undefined) { $old_element.fadeOut(fadeOutTime, function() { $new_element.fadeIn(fadeInTime); }); } else { $new_element.fadeIn(fadeInTime); } setTimeout(shuffleElement, timeout); } $(this).show(); shuffleElement(); } })(jQuery); The first time the shuffleElement() function is called $(shuffledElements).length equals 0, so no element is displayed. On the next call to shuffleElement(), the elements added with appendTo() are available and one is selected at random as expected. Everything works correctly after that. Is there some way to refresh the DOM or make these elements available to jQuery immediately after I add them with appendTo()? Any other suggestions for how to accomplish this?

  Read the article

• Any strategies for assessing the trade-off between CPU loss and memory gain from compression of data

  - by indiehacker

  Are very large TextProperties a burden? Should they be compressed? Say I have a information stored in 2 attributes of type TextProperty in my datastore entities. The strings are always the same length of 65,000 characters and have lots of repeating integers, a sample appearing as follows: entity.pixel_idx = 0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,5,5,5,5,5,5,5,5,5,5,5,5....etc. entity.pixel_color = 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,1,1,1,1,1,1,1,1,1,1,1,1,...etc. So these above could also be represented using much less storage memory by compressing say using only each integer and the length of its series ( '0,8' for '0,0,0,0,0,0,0,0') but then its takes time and CPU to compress and decompress? Any general ideas? Are there some tricks for testing different attempts to the problem?

  Read the article

• Memory leak in C++ program.

  - by lampshade

  What I have is a very crude linked list..THe problem for me is that I am getting a memory leak in the constructor or main. I think it is the constructor. I have not yet deleted the eventName varaible that I have allocated memory for. Could someone help please? :/ (This is not a homework question) class Event { private: char * eventName ; string userEvent; struct node { node(); node * nextByName; const char * eventName; }; node * headByName; public: Event(const char * eventName, const Date &myDate); Event(); virtual ~Event(); void insert(const char * eventName, const Date &myDate, const Time &myTime); void setEvent(); const char * const getEvent() const { return userEvent.c_str(); }; void displayByName(ostream& out) const; }; Event::Event(const char * eventName, const Date &myDate) : eventName(new char[strlen(eventName)+1]), headByName(NULL), userEvent("") { if (eventName) { size_t length = strlen(eventName) +1; strcpy_s(this->eventName, length, eventName); } else eventName = NULL; } Event::Event() : eventName(NULL), userEvent(NULL), headByName(NULL) { } Event::~Event() { node * temp_node = NULL; node * current_node = headByName; while ( current_node ) { temp_node = current_node->nextByName; delete current_node; current_node = temp_node; } } void Event::insert(const char * eventName, const Date &myDate, const Time &myTime) // when we insert we dont care about the time, just the name and the date { node * current_node = new node(); if ( headByName == NULL ) { headByName = current_node; headByName->eventName = eventName; } else { node * search_node = headByName; node * prev_node = NULL; while ( search_node != NULL ) { prev_node = search_node; search_node = search_node->nextByName; } if ( NULL == prev_node ) { headByName = current_node; } else { prev_node->nextByName = current_node; } current_node->nextByName = search_node; current_node->eventName = eventName ; } } void Event::displayByName(ostream& out) const { cout << "Scheduled Events are: " << endl << endl; node * current_node = headByName; while ( current_node ) { (char*)eventName = (char*)current_node->eventName; out << eventName << endl; current_node = current_node->nextByName; } } Event::node::node() : nextByName(NULL), eventName(NULL) { } void Event::setEvent() { cout << "\n\nEnter a new event! "; cin.getline((char*)userEvent.c_str(), 256); size_t length = strlen(userEvent.c_str()) +1; strcpy_s((char*)this->userEvent.c_str(), length, userEvent.c_str()); } /********************************************************************************* **********************************************************************************/ int main() { Date * dPtr = new Date("March", 21, 2010); // instaintiate our Date class object by allocating default date paramateres. Event * ePtr = new Event("First Day of Spring", *dPtr); Time * tPtr = new Time(10,12,"PM"); cout << "default Time is: " << tPtr << endl; cout << "default Date is: " << dPtr << endl; ePtr->insert("First Day of Spring",*dPtr, *tPtr); ePtr->insert("Valentines Day", Date("February",14,2010), *tPtr); ePtr->insert("New Years Day", Date("Janurary",1,2011), *tPtr); ePtr->insert("St. Patricks Day", Date("March",17,2010), *tPtr); ePtr->displayByName(cout); ePtr->setEvent(); const char * const theEvent = ePtr->getEvent(); dPtr->setDate(); ePtr->insert(theEvent, *dPtr, *tPtr); tPtr->setTime(); cout << "Your event: " << theEvent << " is scheduled for: " << endl << dPtr << "at" << tPtr; ePtr->displayByName(cout); delete tPtr; delete dPtr; delete ePtr; cin.ignore(); return 0; }

  Read the article

• How can I manage command line arguements/variables for a script written in Perl?

  - by Structure

  I am trying to manage numerous arguments that are specified by a user when they execute a command. So far, I have been trying to limit my script design to manage arguments as flags that I can easily manage with Getopt::Long as follows: GetOptions ("a" => \$a, "b" => \$b); In this way I can check to see if a or b were specified and then execute the respective code/functions. However, I now have a case where the user can specify two arguments variables as follows: command -a black -b white This is fine, but I cannot come up with a good way to determine whether -a or -b is specified first. Therefore I do not know whether the argument variable is assigned to $ARGV[0] or $ARGV[1] after I have executed GetOptions ("a" => \$a, "b" => \$b);. How can I tell which variable is associated with -a and which is associated with -b in the example above?

  Read the article

• Output something other than True or False

  - by David

  Newb to JS. Trying to determain how to to output something other than Question 1 is True and False. If I understand this correctly, the output is the expression of the flag True or False. Trying to change to say Correct and Incorrect. Also trying to express a percentage of correct instead of the for example: Your total score is 10/100 $(function(){ var jQuiz = { answers: { q1: 'd', q2: 'd', }, questionLenght: 2, checkAnswers: function() { var arr = this.answers; var ans = this.userAnswers; var resultArr = [] for (var p in ans) { var x = parseInt(p) + 1; var key = 'q' + x; var flag = false; if (ans[p] == 'q' + x + '-' + arr[key]) { flag = true; g } else { flag = false; } resultArr.push(flag); } return resultArr; }, init: function(){ $("[class=btnNext]").click(function(){ if ($('input[type=radio]:checked:visible').length == 0) { return incorrect ; } $(this).parents('.questionContainer').fadeOut(500, function(){ $(this).next().fadeIn(500); }); var el = $('#progress'); el.width(el.width() + 11 + 'px'); }); $('.btnPrev').click(function(){ $(this).parents('.questionContainer').fadeOut(500, function(){ $(this).prev().fadeIn(500) }); var el = $('#progress'); el.width(el.width() - 11 + 'px'); }) $("[class=btnShowResult]").click(function(){ var arr = $('input[type=radio]:checked'); var ans = jQuiz.userAnswers = []; for (var i = 0, ii = arr.length; i < ii; i++) { ans.push(arr[i].getAttribute('id')) } }) $('.btnShowResult').click(function(){ $('#progress').width(260); $('#progressKeeper').hide(); var results = jQuiz.checkAnswers(); var resultSet = ''; var trueCount = 0; for (var i = 0, ii = results.length; i < ii; i++){ if (results[i] == true) trueCount++; resultSet += '<div> Question ' + (i + 1) + ' is ' + results[i] + '</div>' } resultSet += '<div class="totalScore">Your total score is ' + trueCount * 4 + ' / 100</div>' $('#resultKeeper').html(resultSet).show(); }) } }; jQuiz.init(); })

  Read the article

• QList as a function parameter - Linking Error - LNK2019

  - by user2445136

  I have an issue with QList as a function parameter and I'll be glad if you can assist me. I have this code for example: void SpinBoxList_Enable(QList spinBoxList) { foreach(QWidget mWidget,*spinBoxList) mWidget-setEnabled(false); } and in the implemantation file I use the QList variable as a pointer: SpinBoxList_Enable(&controlBoardSpinBoxList); ( controlBoardSpinBoxList is a variable of QList ). The Function ToggleBoards_Slot(bool) is a slot that uses When I compile, I get this error message: 1cmosaixserialnumber.obj : error LNK2019: unresolved external symbol "private: void __cdecl CMosaixSerialNumber::SpinBoxList_Disable(class QList *)" (?SpinBoxList_Disable@CMosaixSerialNumber@@AEAAXPEAV?$QList@PEAVQWidget@@@@@Z) referenced in function "public: void __cdecl CMosaixSerialNumber::ToggleBoards_Slot(bool)" (?ToggleBoards_Slot@CMosaixSerialNumber@@QEAAX_N@Z) 1cmosaixserialnumber.obj : error LNK2019: unresolved external symbol "private: void __cdecl CMosaixSerialNumber::SpinBoxList_Enable(class QList *)" (?SpinBoxList_Enable@CMosaixSerialNumber@@AEAAXPEAV?$QList@PEAVQWidget@@@@@Z) referenced in function "private: void __cdecl CMosaixSerialNumber::on_ControlBoardCheckBox_StateChanged(int)" (?on_ControlBoardCheckBox_StateChanged@CMosaixSerialNumber@@AEAAXH@Z) How can I fix this ? Thanks, EVH671

  Read the article

• MPFR Rounding 0.9999 to 1?

  - by Silmaersti

  I'm attempting to store the value 0.9999 into an mpfr_t variable But 0.9999 is rounded to 1 (or some other value != 0.9999) during storage, no matter the round value (GMP_RNDD, GMP_RNDU, GMP_RNDN, GMP_RNDZ) So what's the best method to store 0.9999 in an mpfr_t variable? Is it possible? Here is my test program, it prints "buffer is: 1", instead of the wanted "buffer is: 0.9999": int main() { size_t precision = 4; mpfr_t mpfrValue; mpfr_init2(mpfrValue, precision); mpfr_set_str(mpfrValue, "0.9999", 10, GMP_RNDN); char *buffer = (char*)malloc((sizeof(char) * precision) + 3); mp_exp_t exponent; mpfr_get_str(buffer, &exponent, 10, precision, mpfrValue, GMP_RNDN); printf("buffer is: %s\n", buffer); free(buffer); mpfr_clear(mpfrValue); return 0; } Thanks for any help !

  Read the article

• zChaff not showing output

  - by pns

  Hello, So I downloaded the latest version of zChaff (2007), and was trying out some very simple SAT problems. But zChaff does not output the solution (variable assignments). A very simple example input: p cnf 2 2 1 2 0 1 -2 0 And what I get: c 2 Clauses are true, Verify Solution successful. Instance Satisfiable 1 -2 Random Seed Used 0 Max Decision Level 1 Num. of Decisions 2 ( Stack + Vsids + Shrinking Decisions ) 0 + 1 + 0 Original Num Variables 2 Original Num Clauses 2 Original Num Literals 4 Added Conflict Clauses 0 Num of Shrinkings 0 Deleted Conflict Clauses 0 Deleted Clauses 0 Added Conflict Literals 0 Deleted (Total) Literals 0 Number of Implication 2 Total Run Time 5.1e-05 RESULT: SAT I can see the 1 -2 on the left of "Random Seed Used", but shouldn't this be outputing the variable assignments as "v ..." ? Thanks

  Read the article

• How do I set up the Clojure classpath in Emacs after installing with ELPA?

  - by derefed

  I'm trying to add paths to my classpath in the Clojure REPL that I've set up in Emacs using ELPA. Apparently, this isn't the $CLASSPATH environment variable, but rather the swank-clojure-classpath variable that Swank sets up. Because I used ELPA to install Swank, Clojure, etc., there are a ton of .el files that take care of everything instead of my .emacs file. Unfortunately, I can't figure out how to change the classpath now. I've tried using (setq 'swank-clojure-extra-classpaths (list ...)) both before and after the ELPA stuff in my .emacs, and I've tried adding paths directly to swank-clojure-classpath in .emacs, .emacs.d/init.el, and .emacs.d/user/user.el, but nothing works. What I'm ultimately trying to do is to add both the current directory "." and the directory in which I keep my Clojure programs. I'm assuming swank-clojure-classpath is the thing I need to set here. Thanks for your help.

  Read the article

• Adding to arrays and printing arrays in Java

  - by nfoggia

  I need help figuring out how to get the user to input a number of integers no more than 10, and then add them to an array and print them out from the array. The code I have below, when run, asks the user for the integers and then runs forever and doesn't work. What am I doing wrong? public static void main(String[] args) { Scanner input = new Scanner(System.in); // create a new scanner System.out.print("Enter integers between 1 and 100\n "); int[] nextNumber = new int[10]; int i = 0; int number = input.nextInt(); while (i < nextNumber.length){ i++; nextNumber[i] = number; number = input.nextInt(); } int a = 0; while (a < nextNumber.length){ a++; System.out.println(nextNumber[a]); }

  Read the article

• how to pass varible in function so eclipse can detect its type and work with intelli sense ?

  - by shahjapan

  how can we pass a variable or what we can do inside the method, so eclipse can show the intellisense.

  Read the article

• starting .net application from command prompt is having issue when path is in SHORTNAME

  - by ioWint

  when we start our .net application using a double click on the explorer or from command prompt where your folder path is proper full name then there is no issue at all. But when you start it from command prompt with the path being a Shortname involving a ~ the application behaves weird. IF is entering condition though the condition evaluates to FALSE in quick watch. Accessing a value of a variable in quick watch and immediate window shows value. but when you use it to assign to another variable in code, it returns NULL / no value. another observation: when you attach Visual studio to debug the app, and when you go about "Set as next statement" visual studio is giving options to select which dll to work up on. i have never seen this prompt before!

  Read the article

• Need help understanding .net ThreadPool

  - by Meredith

  I am trying to understand what ThreadPool does, I have this .NET example: class Program { static void Main() { int c = 2; // Use AutoResetEvent for thread management AutoResetEvent[] arr = new AutoResetEvent[50]; for (int i = 0; i < arr.Length; ++i) { arr[i] = new AutoResetEvent(false); } // Set the number of minimum threads ThreadPool.SetMinThreads(c, 4); // Enqueue 50 work items that run the code in this delegate function for (int i = 0; i < arr.Length; i++) { ThreadPool.QueueUserWorkItem(delegate(object o) { Thread.Sleep(100); arr[(int)o].Set(); // Signals completion }, i); } // Wait for all tasks to complete WaitHandle.WaitAll(arr); } } Does this run 50 "tasks", in groups of 2 (int c) until they all finish? Or I am not understanding what it really does.

  Read the article

• Space requirements of a merge-sort

  - by Arkaitz Jimenez

  I'm trying to understand the space requirements for a Mergesort, O(n). I see that time requirements are basically, amount of levels(logn) * merge(n) so that makes (n log n). Now, we are still allocating n per level, in 2 different arrays, left and right. I do understand that the key here is that when the recursive functions return the space gets deallocated, but I'm not seeing it too obvious. Besides, all the info I find, just states space required is O(n) but don't explain it. Any hint? function merge_sort(m) if length(m) = 1 return m var list left, right, result var integer middle = length(m) / 2 for each x in m up to middle add x to left for each x in m after middle add x to right left = merge_sort(left) right = merge_sort(right) result = merge(left, right) return result

  Read the article

< Previous Page | 242 243 244 245 246 247 248 249 250 251 252 253  | Next Page >