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  • Unexpected output from Bubblesort program with MSVC vs TCC

    - by Sujith S Pillai
    One of my friends sent this code to me, saying it doesn't work as expected: #include<stdio.h> void main() { int a [10] ={23, 100, 20, 30, 25, 45, 40, 55, 43, 42}; int sizeOfInput = sizeof(a)/sizeof(int); int b, outer, inner, c; printf("Size is : %d \n", sizeOfInput); printf("Values before bubble sort are : \n"); for ( b = 0; b &lt; sizeOfInput; b++) printf("%d\n", a[b]); printf("End of values before bubble sort... \n"); for ( outer = sizeOfInput; outer &gt; 0; outer-- ) { for ( inner = 0 ; inner &lt; outer ; inner++) { printf ( "Comparing positions: %d and %d\n",inner,inner+1); if ( a[inner] &gt; a[inner + 1] ) { int tmp = a[inner]; a[inner] = a [inner+1]; a[inner+1] = tmp; } } printf ( "Bubble sort total array size after inner loop is %d :\n",sizeOfInput); printf ( "Bubble sort sizeOfInput after inner loop is %d :\n",sizeOfInput); } printf ( "Bubble sort total array size at the end is %d :\n",sizeOfInput); for ( c = 0 ; c &lt; sizeOfInput; c++) printf("Element: %d\n", a[c]); } I am using Micosoft Visual Studio Command Line Tool for compiling this on a Windows XP machine. cl /EHsc bubblesort01.c My friend gets the correct output on a dinosaur machine (code is compiled using TCC there). My output is unexpected. The array mysteriously grows in size, in between. If you change the code so that the variable sizeOfInput is changed to sizeOfInputt, it gives the expected results! A search done at Microsoft Visual C++ Developer Center doesn't give any results for "sizeOfInput". I am not a C/C++ expert, and am curious to find out why this happens - any C/C++ experts who can "shed some light" on this? Unrelated note: I seriously thought of rewriting the whole code to use quicksort or merge sort before posting it here. But, after all, it is not Stooge sort... Edit: I know the code is not correct (it reads beyond the last element), but I am curious why the variable name makes a difference.

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  • WPF: Exception if i add a eventhandler to a MenuItem (in a ListBox)

    - by user437899
    Hi, i wanted a contextmenu for my ListBoxItems. So i created this: <ListBox Name="listBoxName"> <ListBox.ItemTemplate> <DataTemplate> <TextBlock Text="{Binding UserName}" /> </DataTemplate> </ListBox.ItemTemplate> <ListBox.ItemContainerStyle> <Style TargetType="ListBoxItem"> <Setter Property="ContextMenu"> <Setter.Value> <ContextMenu> <MenuItem Header="View" Name="MenuItemView" /> </ContextMenu> </Setter.Value> </Setter> </Style> </ListBox.ItemContainerStyle> </ListBox> This works great. I have the contextmenu for all items, but if i want to add a click-eventhandler to the menuitem, like this: <MenuItem Header="View" Name="MenuItemView" Click="MenuItemView_Click" /> I get a XamlParseException when the window is created. InnerException: The Object System.Windows.Controls.MenuItem cannot be converted to type System.Windows.Controls.Grid It throws only the exception if i add a event-handler. The event-method is empty.

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  • How efficient is PHP's substr?

    - by zildjohn01
    I'm writing a parser in PHP which must be able to handle large in-memory strings, so this is a somewhat important issue. (ie, please don't "premature optimize" flame me, please) How does the substr function work? Does it make a second copy of the string data in memory, or does it reference the original? Should I worry about calling, for example, $str = substr($str, 1); in a loop?

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  • How to read a file byte by byte in Python?

    - by zaplec
    Hi, I'm trying to read a file byte by byte, but I'm not sure how to do that. I'm trying to do it like that: file = open(filename, 'rb') while 1: byte = file.read(8) # Do something... So does that make the variable byte to contain 8 next bits at the beginning of every loop? It doesn't matter what those bytes really are. The only thing that matters is that I need to read a file in 8-bit stacks.

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  • Custom Model Validator for MVC

    - by scottrakes
    I am trying to add a custom model validation at the property level but need to pass in two values. Below is my class definition and validation implementation. When it runs, the "value" in the IsValid method is always null. I can get this working at the class level but the property level is causing me issues. What am I missing? Event Class: public class Event { public int? EventID {get;set;} [ValidPURL("EventID", "PURLValue")] public string PURLValue { get; set; } ... } Validation Class [AttributeUsage(AttributeTargets.All, AllowMultiple = true, Inherited = true)] public sealed class ValidPURL : ValidationAttribute { private const string _defaultErrorMessage = "Web address already exist."; private readonly object _typeId = new object(); public ValidPURL(int eventID, string purlValue) : base(_defaultErrorMessage) { EventID = eventID; PURLValue = purlValue; } public int EventID { get; private set; } public string PURLValue { get; private set; } public override object TypeId { get { return _typeId; } } public override string FormatErrorMessage(string name) { return String.Format(CultureInfo.CurrentUICulture, ErrorMessageString, EventID, PURLValue); } public override bool IsValid(object value) { PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(value); object eventIDValue = properties.Find(EventID, true /* ignoreCase */).GetValue(value); object purlValue = properties.Find(PURLValue, true /* ignoreCase */).GetValue(value); [Some Validation Logic against the database] return true; } } Thank for the help!

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  • I am trying to insert value from combo box to database !! but this is not working

    - by user3675488
    At first I have taken some string in which I am trying to save the input values of textboxs and there is a combo box, I am trying to save the input value of the combo box to database, but this following code is unable to do that !!! what is the prob please help me. private void OK_Click(object sender, EventArgs e) { string sTxtcmpnyName = ""; string sTxtcmpnyAdd = ""; string sPhoneno = ""; string sTxtFax = ""; string sPanNo = ""; string sTxtTin = ""; string sTax = ""; string sAccYr = ""; string sComboSt = ""; foreach (Control c in this.Controls) ////*Adding Validation to the textbox.*// // Here the control is entered into GroupBox Grpcmp where c is denoting the name of the control into the groupbox. { // c1 is another control which denotes the textboxes under the GroupBox Grpcmp. foreach (Control c1 in c.Controls) { /////Now this following code snippets reperesents that the name of the company should not be blank. if (c1 is TextBox == true) // simpler that what you've done there { TextBox temp = (TextBox)c1; //The control is entering into Txtcompany. if (temp.Name == "Txtcompanyname") { //Condition checking is the TextBox is empty or Null then the following message will be shown. if ((temp.Text == "") || (temp.Text == "NULL")) { MessageBox.Show("Company Name should not be Blank"); } sTxtcmpnyName = temp.Text; } else if (c1.Name == "TxtcompanyAddress") { sTxtcmpnyAdd = c1.Text; } else if (c1.Name == "Txtphoneno") { sPhoneno = c1.Text; } else if (c1.Name == "TxtFax ") { sTxtFax = c1.Text; } else if (c1.Name == "Txtpanno") { sPanNo = c1.Text; } else if (c1.Name == "TxtTin") { sTxtTin = c1.Text; } else if (c1.Name == "Txtservicetax") { sTax = c1.Text; } //Now I am converting the TxtAcYr into Date format. //For this purpose two conditions are checked first. //First If the TextBox TxtAcYr is Null or empty it will show the message to enter the accountyear!! //Second If the length of the TextBox TxtAcYr is less than 10, it will again generate a message The date format should be in DD/MM/YYYY // Then the value of the use input will be picked using a For loop. if (c1.Name == "TxtAcYr") { sAccYr = c1.Text; //Here a string is taken named as yearlength and the value of the TxtAcYr is assigned to it by using control c1. //Condition Checking If the TextBox TxtAcYr is Null or empty it will show the message to enter the accountyear!! if ((c1.Text == "") || (c1.Text == "NULL")) { MessageBox.Show("Account Year should be entered!!"); } //Condition 2 is checking. Here the length of the string yearlength is whether equals to 10 or not is checked. //Because there are total 10 characters in Date Format along with special character. else // MessageBox.Show(yearlength.Length.ToString()); if (sAccYr.Length != 10) { MessageBox.Show("The Data Format DD-MM-YYYY"); } //Now the value of user will be picked by using the code snippets. else { //A string named as JK is taken for further use. String JK = ""; //This following loop is initiated to pick the user input. //The loop will check wheather the value of i is less than the length of string yearlength or not. //If Yes then it will go further. for (int i = 0; i < sAccYr.Length; i++) { //This condition is checking special characters. //The positions of special characters(Here '-') are placed at 2nd and 5th numbers. //So, the value of i can not be equals to 2 && 5. if ((i != 2) && (i != 5)) { //The new of value of year length i is assinged to the variable JK. JK = JK + sAccYr[i]; } //If the value of i is equals to 1, then enter the following. if (i == 1) { //*Should add the function of TOInt32* // If ToInt32(JK)>= the maximum length of days of a month then the following alert message will be shown. if (Convert.ToInt32(JK) >= 32) { MessageBox.Show("The Data Format DD-MM-YYYY"); } //**Comment should be added.** JK = ""; } else //If the value of i is equals to 4, then enter the following. if (i == 4) { //*Should add the function of TOInt32* // If ToInt32(JK)>= the maximum length of month then the following alert message will be shown. if (Convert.ToInt32(JK) >= 13) { MessageBox.Show("The Data Format DD-MM-YYYY"); } JK = ""; } } } } } else if (c1.Name == "state_cmb") { //sTxttate = c1.Text.ToString(); sComboSt = c1.Text; MessageBox.Show(c1.Text); } } } //////DATABASE CONNECTION///// try { SqlConnection conn = new SqlConnection(); SqlCommand cmd = new SqlCommand(); conn.ConnectionString = ("Data Source =192.168.0.2 ;database= Mee_Company; Persist Security Info =true; User ID =sa;Password = soso654321@"); conn.Open(); cmd.CommandText = ("INSERT INTO CompanyMaster(CompanyName,Address,State,Phone,Fax,PAN,TIN,STAX,AccountsYear)values('" + sTxtcmpnyName + "','" + sTxtcmpnyAdd + "','" + sComboSt + "','" + sPhoneno + "','" + sTxtFax + "','" + sPanNo + "','" + sTxtTin + "','" + sTax + "','" + sAccYr + "')"); //('" + sTxtcmpnyName + "', '" + TxtcompanyAddress.Text + "', '" + Txtphoneno.Text + "', '" + TxtFax.Text + "', '" + Txtservicetax.Text + "','" + TxtAcYr.Text + "')"); cmd.Connection = conn; cmd.ExecuteNonQuery(); conn.Close(); //cmd.Parameters.AddWithValue } catch (Exception ee) { MessageBox.Show(ee.ToString()); } } //An event is created here so that when the user will click on the Cancel Button, the Form will be closed. private void BtmCancle_Click(object sender, EventArgs e) { //this means the form. this.Close(); } //Another Event is created here named as TxtAcYr_KeyPress. //It is for making the TextBox TxtAcYr only allowance of numeric input along with special character '-'. private void TxtAcYr_KeyPress(object sender, KeyPressEventArgs e) { //If the input is number or '-' is checked //And also the backspace and delete option is enabled here. if (char.IsNumber(e.KeyChar) || e.KeyChar == (char)Keys.Back || e.KeyChar == (char)Keys.Delete || e.KeyChar == '-') { e.Handled = false; //ok } else { e.Handled = true; //not ok } }

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  • Easy way to check if item is in list?

    - by befall
    Hey guys, I'm writing a search algorithm in C++, and one of the things I need to do is have a few if statements that check cells above, below, left of, and right of. Each time a cell is found to be open and added to the stack, I want it added to a list of cells already checked. I want to be able to say in the if loop if(thisCell is not in checkedCells). Any simple ideas? Thanks!

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  • What does PHP stand for?

    - by Rob
    PHP Hypertext Preprocessor So the abbreviation is an infinite loop of itself. PHP = PHP Hypertext Preprocessor Hypertext Preprocessor Which is = PHP Hypertext Preprocessor Hypertext Preprocessor Hypertext Preprocessor Or easier to understand: <? $php = $php . "Hypertext Preprocessor"; echo $php; ?> So uh, my question is: What the hell?

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  • Windows.Forms RichTextBox Control - Avoid inserting large data.

    - by SchlaWiener
    I have a Windows Form with a RichTextBox on it. The content of the RichTextBox is written to a database field that ist limited to 64k data. For my purpose that is way more than enough text to store. I have set the MaxLength property to avoid insertng more data than allowed. rtcControl.MaxLength = 65536 Howevery, that only restricts the amount of characters that so is allowed to put in the text. But with the formatting overhead from the Rtf I can type more text than I should be allowed to. It even get's worse if I insert a large image, which dosn't increase the TextLength at all but the Rtf Length grows quite a lot. At the moment I check the Length of the richttextboxes' Rtf property in the FormClosing event and display a message to the user if it's to large. However that is just a workaround because I want to disallow putting more data than allowed into the control (like in a textbox if you exceed the MaxLength property nothing is inserted into the control and you hear the default beep(). Any ideas how to achive this? I already tried: using a custom control which extends the richtextbox and shadows th Rtf property to intercept the insertation. But it seems it isn't executed if I add text. Even the TextChanged Event does not fire if I type smth. in the control.

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  • Should I use concrete Inheritance or not?

    - by Mez
    I have a project using Propel where I have three objects (potentially more in the future) Occasion Event extends Occasion Gig extends Occasion Occasion is an item that has the shared things, that will always be needed (Venue, start, end etc) With this - I want to be able to add in extra functionality, say for example, adding "Band" objects to the Gig object, or "Flyers" to an "Event" object. For this, I plan to create objects for these. However, without concrete inheritance, I have to have the foreign key point to the Occasion object - giving the (propel generated) functions for all of these extra bits to anything inherited from Occasion. I could, in theory do this without a foreign constraint, and add in functions to use the Peer or Query classes to get things related to the "Gig" or similar. Whereas with concrete inheritance, I would only have these functions in the things where they are. I think the decision here is whether I should Duck Type the objects (after all they are occasions) or whether I should just use the "Occasion" object as a "template" (only being used to search for things, like, all occasions at a venue) Thoughts? Comments?

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  • Javascript onclick stops working, multiple dynamically created divs.

    - by Patrick
    I have run into a strange problem, i am creating a lot of dynamically divs. And i recently found out that some of my divs doesn't fire the onclick event? All the divs are created using the same template, so why are some not working? Most of the time, its the 4-5 from the bottom. If you click on one of the others and then try again, you might get one of those to trigger. But only sporadically. Code to create the divs: GameField.prototype.InitField = function(fieldNumber) { var newField = document.createElement("div"); if (fieldNumber == 0 || fieldNumber == 6 || fieldNumber == 8 || fieldNumber == 17) newField.className = 'gameCellSmall borderFull gameText gameTextAlign'; else newField.className = 'gameCellSmall borderWithoutTop gameText gameTextAlign'; var instance = this; if (fieldNumber == 6 || fieldNumber == 7 || fieldNumber == 17) { } else newField.onclick = function() { instance.DivClick(fieldNumber); return false; } this.fields[fieldNumber] = newField; this.score[fieldNumber] = 0; return newField; } I added the return false to the click function, but it still behaves strangely. Why are some not triggering? I create around 18 divs / player. But it happens even if i just create one player. Do i perhaps need to cancel the event once i am done with it? (Like the return false; is trying to do)

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  • UI Design, incase of numerous situations

    - by The King
    Hi... I'm creating a web form, where in there are around 12-15 Input Fields... You can have a look at the screen and The request is such that depending on the data the user selects in the Gridview and the DropDown list, the appropriate Textboxes and CheckBoxes needs to be displayed. Some times the conditions are very direct, like when the DDL value is "ABC", get only paid amount from the user. Sometime they are so complex like... IF DDL is "DEF" and Selected GPMS value is between 1000-2000, calculate the values of allowed, paid etc (using some formula) and the focus should be directed to Page No Field, leaving the other fields open incase user wants to edit... There are around 10-15 conditions like this. As this was done through agile, conditions were being added as and when, and wherever it feels appropriate (DDL on change Event, GridView on selecting change event etc... etc..) After completion, now I see the code has become a big chuck, is growing unmanageably... Now, I'm planning to clear this... From you experience, what you think is the best way to handle this. There is a possibility to add more conditions like this in future... Please let me know, incase you need more information. I'm currently developing this app in C# .Net WindowsForms Edit: Currently there are only three items (The Datagrid, the DDL, the OverrideAmt CheckBox) that change the way other fields behave... Almost all of the conditions will fall between the two situations I mentioned... Mostly they belong to "Enabling/Disabling".. "Setting of Values"... and "Changing Focus" or any combination of these.

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  • SQL Code Smells

    - by Lijo
    Hi Team, Could you please list some of the bad practices in SQL, that novice people do? I have found the use of "WHILE loop" in scenarios which could be resolved using set operations. Another example is inserting data only if it does not exist. This can be achieved using LEFT OUTER JOIN. Some people go for "IF" Any other thoughts? Thanks Lijo

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  • IPhone SDK help with minigame

    - by Harry
    right basically what ive got is an app which is a ball and bat and its how many bounces you can achieve, it works alright but there is one problem, when the ball hits the side of the bat it throws it off course and its like the frame of the ball is bouncing in the frame of the bat, Here is my code in my mainview.m #import "MainView.h" #define kGameStateRunning 1 @implementation MainView @synthesize paddle, ball; - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; CGPoint location = [touch locationInView:touch.view]; CGPoint xLocation = CGPointMake(location.x,paddle.center.y); paddle.center = xLocation; } -(IBAction) play { pos = CGPointMake(14.0,7.0); [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(onTimer) userInfo:nil repeats:YES]; } -(void) onTimer { ball.center = CGPointMake(ball.center.x+pos.x,ball.center.y+pos.y); if(ball.center.x > 320 || ball.center.x < 0) pos.x = -pos.x; if(ball.center.y > 460 || ball.center.y < 0) pos.y = -pos.y; [self checkCollision]; } -(void) checkCollision { if(CGRectIntersectsRect(ball.frame,paddle.frame)) { pos.y = -pos.y; } } @end can anyone work out the problem here? Thanks Harry

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  • WPF EventRouting to Children

    - by Shaun Bowe
    Is there any way to broadcast a RoutedEvent to all of my children in WPF? For example lets say I have a Window that has 4 children. 2 of them know about the RoutedEvent 'DisplayYourself' and are listening for it. How can I raise this event from the window and have it sent to all children? I looked at RoutingStrategy and Bubble is the wrong direction, Tunnel and Direct don't work because I don't know which children I want to send this to. I just want to broadcast this message and have whoever cares about it handle it. update: I declared the events in a static class. public static class StaticEventClass { public static readonly RoutedEvent ClickEvent = EventManager.RegisterRoutedEvent("Click", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(StaticEventClass)); public static readonly RoutedEvent DrawEvent = EventManager.RegisterRoutedEvent("Draw", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(StaticEventClass)); } The problem is when I raise the event from my window, the children never see it. RoutedEventArgs args = new RoutedEventArgs(StaticEventClass.DrawEvent, this); this.RaiseEvent(args); update again.. Here is the handler in the child. public ChildClass() { this.AddHandler(StaticEventClass.DrawEvent, new RoutedEventHandler(ChildClass_Draw)); }

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  • The Classic jQuery Tabs with Bing Maps Issue

    - by Justin
    Hello, I know that there are multiple issues with jQuery Tabs and using Maps. And I have seen the multiple fixes and I am half-way there. But I have the most obscure issue and hoping that someone might understand why. This is my code for the tabs $("#contactTabs").tabs({ spinner: 'Loading <img src="../images/icons/ajax-loader.gif" />' }); $('#contactTabs').bind('tabsshow', function(event, ui) { if (ui.panel.id == "Map") { GetMap(); } }); Which currently does not work. But I was doing some testing and added in an ALERT() to see if the "GetMap()" was even attempting to be loaded... so this was the code that I tested with, and it works just fine. $("#contactTabs").tabs({ spinner: 'Loading <img src="../images/icons/ajax-loader.gif" />' }); $('#contactTabs').bind('tabsshow', function(event, ui) { if (ui.panel.id == "Map") { alert("load map"); GetMap(); } }); So I haven't a clue why adding the ALERT() causes the map to load and removing the ALERT just doesn't load the map at all. Is there any clarification that someone can give me on this issue? Thank you in advance!

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  • Iterate through directory filenames using JavaScript on ASP.NET C#

    - by Gal V
    Hello all, I'm trying to read all filenames from a specified (server- not client) folder, and insert all the filenames into a javascript Array. It should behave like the Directory.GetFiles method in ASP.NET C#. I created a new array, and I just need the loop method (Javascript or jQuery) to iterate in the specific folder, and insert all the filenames into the array. Thanks all helpers!

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  • jquery-infinite-carousel - jump 3 items instead of one

    - by Rob B
    Successfully used jquery-infinite-carousel in the past but for my current project I need it to loop forever AND also jump 3 items at a time. Example of how it works jumping 1 at a time here. jQuery.fn.carousel = function(previous, next, options){ var sliderList = jQuery(this).children()[0]; if (sliderList) { var increment = jQuery(sliderList).children().outerWidth("true"), elmnts = jQuery(sliderList).children(), numElmts = elmnts.length, sizeFirstElmnt = increment, shownInViewport = Math.round(jQuery(this).width() / sizeFirstElmnt), firstElementOnViewPort = 1, isAnimating = false; //console.log("increment = " + increment); //console.log("numElmts = " + numElmts); //console.log("shownInViewport = " + shownInViewport); for (i = 0; i < shownInViewport; i++) { jQuery(sliderList).css('width',(numElmts+shownInViewport)*increment + increment + "px"); jQuery(sliderList).append(jQuery(elmnts[i]).clone()); } jQuery(previous).click(function(event){ if (!isAnimating) { if (firstElementOnViewPort == 1) { jQuery(sliderList).css('left', "-" + numElmts * sizeFirstElmnt + "px"); firstElementOnViewPort = numElmts; console.log("firstElementOnViewPort = " + firstElementOnViewPort); } else { firstElementOnViewPort--; } jQuery(sliderList).animate({ left: "+=" + increment, y: 0, queue: true }, "swing", function(){isAnimating = false;}); isAnimating = true; } }); jQuery(next).click(function(event){ if (!isAnimating) { if (firstElementOnViewPort > numElmts) { firstElementOnViewPort = 2; jQuery(sliderList).css('left', "0px"); } else { firstElementOnViewPort++; } jQuery(sliderList).animate({ left: "-=" + (increment), y: 0, queue: true }, "swing", function(){isAnimating = false;}); isAnimating = true; } }); } };

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  • Why am I getting "Message sent to deallocated object" in Objective-C?

    - by Dave C
    I have several buttons on my app that are being created dynamically. They are all pointed at the button click event when pressed. When the button pressed method is called, the sender's tag (int value) is parsed into the controller's house ID. It works with one of the buttons — the first one created, to be specific — but the others throw the following error: -[CFNumber intValue]: message sent to deallocated instance 0xc4bb0ff0 I am not releasing these buttons anywhere in my code. I haven't set them to autorelease or anything like that. I'm just wondering why they are doing this on the click. The button click event: - (IBAction) ButtonClick: (id) sender { HouseholdViewController *controller = [[HouseholdViewController alloc] initWithNibName:@"HouseholdViewController" bundle:nil]; controller.delegate = self; controller.HouseID = [(NSInteger)[(UIButton *)sender tag] intValue]; //this line throws an error controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [self presentModalViewController:controller animated:YES]; [controller release]; } Where I am creating the buttons: UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; button.frame = CGRectMake(MyLongInScreenCoords, MyLatInScreenCoords, 50, 50); UIImage *buttonImageNormal = [UIImage imageNamed:@"blue_pin.png"]; UIImage *strechableButtonImageNormal = [buttonImageNormal stretchableImageWithLeftCapWidth:50 topCapHeight:50]; [button setBackgroundImage:strechableButtonImageNormal forState:UIControlStateNormal]; [self.view addSubview:button]; button.tag = [NSNumber numberWithInt:[[words objectAtIndex: i] intValue]]; ButtonPoints[CurrentHouseCount][0] = button; ButtonPoints[CurrentHouseCount][1] = [NSValue valueWithCGPoint:CGPointMake(MyActualLat, MyActualLong)]; [button addTarget:self action:@selector(ButtonClick:) forControlEvents:UIControlEventTouchUpInside]; CurrentHouseCount++;

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  • Using PHP to read a web page with fsockopen(), but fgets is not working

    - by asdasd
    Im using this code here: http://www.digiways.com/articles/php/httpredirects/ public function ReadHttpFile($strUrl, $iHttpRedirectMaxRecursiveCalls = 5) { // parsing the url getting web server name/IP, path and port. $url = parse_url($strUrl); // setting path to '/' if not present in $strUrl if (isset($url['path']) === false) $url['path'] = '/'; // setting port to default HTTP server port 80 if (isset($url['port']) === false) $url['port'] = 80; // connecting to the server] // reseting class data $this->success = false; unset($this->strFile); unset($this->aHeaderLines); $this->strLocation = $strUrl; $fp = fsockopen ($url['host'], $url['port'], $errno, $errstr, 30); // Return if the socket was not open $this-success is set to false. if (!$fp) return; $header = 'GET / HTTP/1.1\r\n'; $header .= 'Host: '.$url['host'].$url['path']; if (isset($url['query'])) $header .= '?'.$url['query']; $header .= '\r\n'; $header .= 'Connection: Close\r\n\r\n'; // sending the request to the server echo "Header is: ".str_replace('\n', '\n', $header).""; $length = strlen($header); if($length != fwrite($fp, $header, $length)) { echo 'error writing to header, exiting'; return; } // $bHeader is set to true while we receive the HTTP header // and after the empty line (end of HTTP header) it's set to false. $bHeader = true; // continuing untill there's no more text to read from the socket while (!feof($fp)) { echo "in loop"; // reading a line of text from the socket // not more than 8192 symbols. $good = $strLine = fgets($fp, 128); if(!$good) { echo 'bad'; return; } // removing trailing \n and \r characters. $strLine = ereg_replace('[\r\n]', '', $strLine); if ($bHeader == false) $this-strFile .= $strLine.'\n'; else $this-aHeaderLines[] = trim($strLine); if (strlen($strLine) == 0) $bHeader = false; echo "read: $strLine"; return; } echo "after loop"; fclose ($fp); } This is all I get: Header is: GET / HTTP/1.1\r\n Host: www.google.com/\r\n Connection: Close\r\n\r\n in loopbad So it fails the fgets($fp, 128);

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  • UIDisplayLink stops updating when UIScrollView scrolled

    - by Tricky
    Title is quite self explanatory, but I have some animation being done in a loop triggered by UIDisplayLink. However, as soon as I scroll a UIScrollView I have added to my view hierarchy, the animation stops immediately, only to return again when scrolling has completely stopped and come to a standstill.... Anyway to cancel this behaviour?

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  • Problem in finalizing the link list in C#

    - by Yasin
    My code was almost finished that a maddening bug came up! when i nullify the last node to finalize the link list , it actually dumps all the links and make the first node link Null ! when i trace it , its working totally fine creating the list in the loop but after the loop is done that happens and it destroys the rest of the link by doing so, and i don't understand why something so obvious is becoming problematic! (last line) struct poly { public int coef; public int pow; public poly* link;} ; poly* start ; poly* start2; poly* p; poly* second; poly* result; poly* ptr; poly* start3; poly* q; poly* q2; private void button1_Click(object sender, EventArgs e) { string holder = ""; IntPtr newP = Marshal.AllocHGlobal(sizeof(poly)); q = (poly*)newP.ToPointer(); start = q; int i = 0; while (this.textBox1.Text[i] != ',') { holder += this.textBox1.Text[i]; i++; } q->coef = int.Parse(holder); i++; holder = ""; while (this.textBox1.Text[i] != ';') { holder += this.textBox1.Text[i]; i++; } q->pow = int.Parse(holder); holder = ""; p = start; //creation of the first node finished! i++; for (; i < this.textBox1.Text.Length; i++) { newP = Marshal.AllocHGlobal(sizeof(poly)); poly* test = (poly*)newP.ToPointer(); while (this.textBox1.Text[i] != ',') { holder += this.textBox1.Text[i]; i++; } test->coef = int.Parse(holder); holder = ""; i++; while (this.textBox1.Text[i] != ';' && i < this.textBox1.Text.Length - 1) { holder += this.textBox1.Text[i]; if (i < this.textBox1.Text.Length - 1) i++; } test->pow = int.Parse(holder); holder = ""; p->link = test; //the addresses are correct and the list is complete } p->link = null; //only the first node exists now with a null link! }

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