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  • std::string == operator not working

    - by Paul
    Hello, I've been using std::string's == operator for years on windows and linux. Now I am compiling one of my libraries on linux, it uses == heavily. On linux the following function fails, because the == returns false even when the strings are equal (case sensitive wise equal) const Data* DataBase::getDataByName( const std::string& name ) const { for ( unsigned int i = 0 ; i < m_dataList.getNum() ; i++ ) { if ( m_dataList.get(i)->getName() == name ) { return m_dataList.get(i); } } return NULL; } The getName() method is declared as follows virtual const std::string& getName() const; I am building with gcc 4.4.1 and libstdc++44-4.4.1. Any ideas? it looks perfectly valid to me. Paul

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  • Extended with advice: Moving block wont work in Javascript

    - by Mack
    Hello Note: this is an extension of a question I just asked, i have made the edits & taken the advice but still no luck I am trying to make a webpage where when you click a link, the link moves diagonally every 100 milliseconds. So I have my Javascript, but right now when I click the link nothing happens. I have run my code through JSLint (therefore changed comaprisions to === not ==, thats weird in JS?). I get this error from JSLink though: Error: Implied global: self 15,38, document 31 What do you think I am doing wrong? <script LANGUAGE="JavaScript" type = "text/javascript"> <!-- var block = null; var clockStep = null; var index = 0; var maxIndex = 6; var x = 0; var y = 0; var timerInterval = 100; // milliseconds var xPos = null; var yPos = null; function moveBlock() { if ( index < 0 || index >= maxIndex || block === null || clockStep === null ) { self.clearInterval( clockStep ); return; } block.style.left = xPos[index] + "px"; block.style.top = yPos[index] + "px"; index++; } function onBlockClick( blockID ) { if ( clockStep !== null ) { return; } block = document.getElementById( blockID ); index = 0; x = number(block.style.left); // parseInt( block.style.left, 10 ); y = number(block.style.top); // parseInt( block.style.top, 10 ); xPos = new Array( x+10, x+20, x+30, x+40, x+50, x+60 ); yPos = new Array( y-10, y-20, y-30, y-40, y-50, y-60 ); clockStep = self.SetInterval( moveBlock(), timerInterval ); } --> </script> <style type="text/css" media="all"> <!-- @import url("styles.css"); #blockMenu { z-index: 0; width: 650px; height: 600px; background-color: blue; padding: 0; } #block1 { z-index: 30; position: relative; top: 10px; left: 10px; background-color: red; width: 200px; height: 200px; margin: 0; padding: 0; /* background-image: url("images/block1.png"); */ } #block2 { z-index: 30; position: relative; top: 50px; left: 220px; background-color: red; width: 200px; height: 200px; margin: 0; padding: 0; /* background-image: url("images/block1.png"); */ } #block3 { z-index: 30; position: relative; top: 50px; left: 440px; background-color: red; width: 200px; height: 200px; margin: 0; padding: 0; /* background-image: url("images/block1.png"); */ } #block4 { z-index: 30; position: relative; top: 0px; left: 600px; background-color: red; width: 200px; height: 200px; margin: 0; padding: 0; /* background-image: url("images/block1.png"); */ } #block1 a { display: block; width: 100%; height: 100%; } #block2 a { display: block; width: 100%; height: 100%; } #block3 a { display: block; width: 100%; height: 100%; } #block4 a { display: block; width: 100%; height: 100%; } #block1 a:hover { background-color: green; } #block2 a:hover { background-color: green; } #block3 a:hover { background-color: green; } #block4 a:hover { background-color: green; } #block1 a:active { background-color: yellow; } #block2 a:active { background-color: yellow; } #block3 a:active { background-color: yellow; } #block4 a:active { background-color: yellow; } --> </style>

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  • Deserialize XML to custom Class in Flex?

    - by MysticEarth
    Is it possible to deserialize an XML file to a class in Flex without manually checking the XML and/or creating the class, with the help of a HttpService? Edit: Explained a bit more and better. We have an XML file which contains: <Project> <Name>NameGoesHere</Name> <Number>15</Number> </Project> In Flex we want this to be serialized to our Project class: package com.examplepackage { import mx.collections.ArrayCollection; [XmlClass] public class Project { public var Name:String; public var Number:int; public function Project() { } } } The XML is loaded with a HTTPService.

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  • jquery li with image fade in background (fade in class)

    - by steve
    I'm currently using this code: var gallery = $('ul#gallery').children(); $(gallery).filter(':even').not(':last').hover(function () {$(this).toggleClass('next')}); I'm trying to make it fade this new class in. Currently, there's an <li> with an image in it, no background. When the 'next' class is added, it gives it a background image when hovered over. Is there a way to just fade in the new class without making the image blink/fade at all? Thanks.

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  • What kind of assemblies can be called using P/Invoke ?

    - by milan
    Hi all, I allready asked at: Is it possible to call unmanaged code using C# reflection from managed code ? if it is possible to call C/C++ library unmanaged function with Invoke and reflection from .NET and the answer is yes. What I am not clear about is can I call using P/Invoke ANY assembly written/compiled/build with other compilers on my Windows PC like Labwindows/CVI(have some kind of C compiler) or Java written dll's, exe. If this is possible is it the same as explained in above given link using "Marshal.GetDelegateForFunctionPointer" ? Thanks! Milan.

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  • Computationally simple Pseudo-Gaussian Distribution with varying mean and standard deviation?

    - by mstksg
    This picture from wikipedia has a nice example of the sort of functions I'd ideally like to generate http://en.wikipedia.org/wiki/File:Normal_Distribution_PDF.svg Right now I'm using the Irwin-Hall Distribution, which is more or less a Polynomial approximation of the Gaussian distribution...basically, you use uniform random number generator and iterate it x times, and take the average. The more iterations, the more like a Gaussian Distribution it is. It's pretty nice; however I'd like to be able to have one where I can vary the mean. For example, let's say I wanted a number between the range 0 and 10, but around 7. Like, the mean (if I repeated this function multiple times) would turn out to be 7, but the actual range is 0-10. Is there one I should look up, or should I work on doing some fancy maths with standard Gaussian Distributions?

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  • How to display unique success messages on jquery form validation

    - by mastah
    Hi guys, hope you can help me on this one, I'm currently using this: jQuery plugin:validation (Homepage) I've been reading related questions here, but this one is the closest get. http://stackoverflow.com/questions/1863448/jquery-validation-on-success from the plugin's documentation http://docs.jquery.com/Plugins/Validation/validate#toption success String, Callback If specified, the error label is displayed to show a valid element. If a String is given, its added as a class to the label. If a Function is given, its called with the label (as a jQuery object) as its only argument. That can be used to add a text like "ok!". Currently I'm only object given to me is the label, and I can only add text to it. Now what I want is to have unique success message. For example: username field will have a success message: 'username okay!' email = 'email seems right' something along those lines, instead of displaying just one generic success message on all the fields. Thanks in advanced :)

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  • firefox window.onerror event problem - alerts "Script error!" only

    - by powerboy
    I use the window.onerror to alert javascript errors for debugging. window.onerror = function(msg, url, line) { alert(msg + '\nLine: ' + line); }; When an error is fired, it can alert this actual error message in IE. But in firefox, it just alerts "Script error!", but I can still see the actual error message in firefox's error console. I remembered several months ago when I worked on another project, firefox did not work like this. But I cannot get the code of that project currently. So I wonder what are the possible problems with this?

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  • Union on two tables with a where clause in the one

    - by Lostdrifter
    Currently I have 2 tables, both of the tables have the same structure and are going to be used in a web application. the two tables are production and temp. The temp table contains one additional column called [signed up]. Currently I generate a single list using two columns that are found in each table (recno and name). Using these two fields I'm able to support my web application search function. Now what I need to do is support limiting the amount of items that can be used in the search on the second table. the reason for this is become once a person is "signed up" a similar record is created in the production table and will have its own recno. doing: Select recno, name from production UNION ALL Select recno, name from temp ...will show me everyone. I have tried: Select recno, name from production UNION ALL Select recno, name from temp WHERE signup <> 'Y' But this returns nothing? Can anyone help?

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  • Preloader stalling flash movie in IE

    - by rogersoli
    This is only a problem in IE. the following actionscript is for a simple preloader for a movie i'm working on. It works fine in Firefox but the movie stops on the first frame when opened with Internet Explorer. Has anyone had this problem before? stop(); addEventListener(Event.ENTER_FRAME,checkLoad); function checkLoad(e:Event):void { var pcent:Number=this.loaderInfo.bytesLoaded /this.loaderInfo.bytesTotal*100; bar_mc.scaleX=pcent/100; loader_txt.text=int(pcent)+"%"; if (pcent==100) { removeEventListener(Event.ENTER_FRAME,checkLoad); this.gotoAndPlay(2); } }

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  • Emacs on Windows: how to protect built-in el files from being accidentally edited

    - by RamyenHead
    On Linux, they are all read only, so no problem. But on MS Windows, what happens is like this: I get curious about the definition of the command isearch-forward, I type C-h f isearch-forward and click on the link isearch.el from the help to get to the definition of the function, and while I am reading its definition, I press C-h or C-c many times, but I set Caps Lock as another Ctrl key, so sometimes it happens that I release Caps Lock too early, in which case C-h or C-c becomes inserting h or c, sometimes I notice that and undo it, but sometimes I don't notice it, and I even save them all with C-x s. What is a good way to protect the built-in el files from me on MS Windows?

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  • Reducing Code Repetition: Calling functions with slightly different signatures

    - by Brian
    Suppose I have two functions which look like this: public static void myFunction1(int a, int b, int c, string d) { //dostuff someoneelsesfunction(c,d); //dostuff2 } public static void myFunction2(int a, int b, int c, Stream d) { //dostuff someoneelsesfunction(c,d); //dostuff2 } What would be a good way to avoid repeated dostuff? Ideas I've thought of, but don't like: I could make d an object and cast at runtype based on type, but this strikes me as not being ideal; it removes a type check which was previously happening at compile time. I could also write a private helper class that takes an object and write both signatures as public functions. I could replace dostuff and dostuff2 with delegates or function calls or something.

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  • Ogg/Vorbis: _ov_fopen cannot be found

    - by knight666
    I'm trying to use Ogg/Vorbis with OpenAL to get sound in my game. Right now I'm simply trying to load a .ogg file and read its data, I'm not actually doing anything with it. I first tried using ov_open, however, the documentation said I should really be using ov_fopen on Windows. However, when I try to use that I get the following: 1>AudioManager.obj : error LNK2019: unresolved external symbol _ov_fopen referenced in function "private: static struct SomeGame::SoundData * __cdecl SomeGame::AudioManager::LoadOGG(char *)" (?LoadOGG@AudioManager@SomeGame@@CAPAUSoundData@2@PAD@Z) ...and when I Google "unresolved external symbol _ov_fopen", I get exactly one result. And it's in Japanese. So I tried downloading the ogg and vorbis source and compiling it, and inserting those in the project, but it still gives me the same error. Basically, how do I load in an Ogg/Vorbis file to be used with OpenAL on Windows? Thanks in advance.

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  • how do I automatically execute javascript?

    - by user317005
    how do I automatically execute javascript? I know of < body onLoad="" , but I just thought maybe there is another way to do it? html: <html><head></head><body><div id="test"></div></body></html> javascript: <script>(function(){var text = document.getElementById('test').innerHTML;var newtext = text.replace('', '');return newtext;})();</script> I wanna get the text within "test", replace certain parts, and then output it to the browser. Any ideas on how to do it? I'd appreciate any help. Thanks.

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  • const correctness

    - by ra170
    I was going through: C++ FAQs about inheritance and decided to implement it (just to learn it) #include "Shape.h" void Shape::print() const { float a = this->area(); // area() is pure virtual ... } now, everything (well, almost) works as described in item: faq:23.1 except that print() is const and so it can't access the "this" pointer, as soon as you take out const, it works. Now, C++ FAQs have been around for a while and are usually pretty good. Is this a mistake? Do they have typo or am I wrong? If I'm wrong, I would like to know how is it possible to access the "this" pointer in a const function.

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  • Converting excel files to python to frequency

    - by Jacob
    Essentially I've got an excel files with voltage in the first column, and time in the second. I want to find the period of the voltages, as it returns a graph of voltage in y axis and time in x axis with a periodicity, looking similar to a sine function. To find the frequency I have uploaded my excel file to python as I think this will make it easier- there may be something I've missed that will simplify this. So far in python I have: import xlrd import numpy as N import numpy.fft as F import matplotlib.pyplot as P wb = xlrd.open_workbook('temp7.xls') #LOADING EXCEL FILE wb.sheet_names() sh = wb.sheet_by_index(0) first_column = sh.col_values(1) #VALUES FROM EXCEL second_column = sh.col_values(2) #VALUES FROM EXCEL Now how do I find the frequency from this? Huge thanks to anyone who can help! Jacob

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  • Using JSON, passing variable from php to javascript

    - by Ryan Fung
    I wonder why it is not working? check_login.php <?php session_start(); $data = array("username" => "true"); echo json_encode($data); ?> my js file var linkName; $.ajax({ type: "POST", url: "check_login.php", dataType: "json", success: function(json){ if(json.username != "true") { //do something } } }); I am trying to get the username after checking whether or not the user has signed in yet in the php file, something like passing a session variable. But currently passing a string seems to already have a problem. Any know what I did wrong here? Still not working the code above. Anyone want to help me out here?

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  • SQL Server Mutliple Joins Taxing CPU

    - by durilai
    I have a stored procedure on SQL server 2005. It is pulling from a Table function, and has two joins. When the query is run using a load test it kills the CPU 100% across all 16 cores! I have determined that removing one of the joins makes the query run fine, but both taxes the CPU. Select SKey From dbo.tfnGetLatest(@ID) a left join [STAGING].dbo.RefSrvc b on a.LID = b.ESIID left join [STAGING].dbo.RefSrvc c on a.EID = c.ESIID Any help is appreciated, note the join is happening on the same table in a different database on the same server.

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  • flex3 Format date without timezone

    - by Maurits de Boer
    I'm receiving a date from a server in milliseconds since 1-1-1970. I then use the DateFormatter to print the date to the screen. However, Flex adds timedifference and thus it displays a different time than what I got from the server. I've fixed this by changing the date before printing to screen. But I think that's a bad solution because the date object doesn't hold the correct date. Does anyone know how to use the dateFormatter to print the date, ignoring the timezone? this is how I did it: function getDateString(value:Date):String { var millisecondsPerMinute:int = 1000*60; var newDate:Date = new Date(value.time - (millisecondsPerMinute*value.timezoneOffset)); var dateFormatter:DateFormatter = new DateFormatter(); dateFormatter.formatString = "EEEE DD-MM-YYYY LL:MM AA"; return dateFormatter.format(newDate); }

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  • Some math and animation

    - by Ockonal
    Hello, I have a grass texture: I use it in my 2d-game. I want to animate it by code, without any predefined animations. The grass should interact with wind. So when the wind is stronger, the grass should stoop into need side more. First version of animation I made using sinusoid function, but such animation is a bit ugly, because the base of the grass moves left/right like all another part of picture. And with sinusoid I'm not able to regulate stoop of the image. Any advices?

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  • Releasing Xmlparser and NSXMLParser objects

    - by erastusnjuki
    How can I release the variables xmlParser and parser safely in the function below? - (id)callRestService: (NSString *) methodName : (NSDictionary *) params { NSURL *url=[self getRestUrl: methodName : params]; XmlParser *xmlParser = [[XmlParser alloc] init]; NSXMLParser *parser = [[NSXMLParser alloc] initWithContentsOfURL:url]; [parser setDelegate:xmlParser]; [parser setShouldProcessNamespaces:NO]; [parser setShouldReportNamespacePrefixes:NO]; [parser setShouldResolveExternalEntities:NO]; [parser parse]; [parser setDelegate:nil]; return xmlParser.dictionaryArray; }

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  • VB in Access: Combo Box Values are not visible in form view but are visible through Debug.Print

    - by Thor
    Code in Form onLoad: country_combo.RowSourceType = "Value List" Code in a reset function: Dim lListIndex As Long With Me.country_combo For lListIndex = .ListCount - 1 To 0 Step -1 .RemoveItem (lListIndex) Next lListIndex<br/> End With Code to populate country combo: *For n = 1 To numCountries* *countryCombo.AddItem (countryRS.Fields("countryName"))* *countryRS.MoveNext* *Next n* I'm having a problem that occurs AFTER the code to populate the country combobox runs. The values are there as I can run Debug.Print(countryCombo.Value) and it prints out the name of the selected country, but I can't see the values in the combobox at all. They're invisible, and as far as I know there is no visiblity property for specific items, unless I'm completely mistaken.

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  • How do Scala parser combinators compare to Haskell's Parsec?

    - by artif
    I have read that Haskell parser combinators (in Parsec) can parse context sensitive grammars. Is this also true for Scala parser combinators? If so, is this what the "into" (aka "") function is for? What are some strengths/weaknesses of Scala's implementation of parser combinators, vs Haskell's? Do they accept the same class of grammars? Is it easier to generate error messages or do other miscellaneous useful things with one or the other? How does packrat parsing (introduced in Scala 2.8) fit into this picture? Is there a webpage or some other resource that shows how different operators/functions/DSL-sugar from one language's implementation maps onto the other's?

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  • Errors while building ACE program

    - by karthi
    Hi i am new to ACE. i just started ACE with a "HELLO WORLD" program. It compiled successfully but while building it produces some of the errors.Can anyone help me. CODE: include include "ace/Log_Msg.h" include "ace/OS_main.h" int ACE_TMAIN(int argc, ACE_TCHAR *argv[]) { ACE_DEBUG((LM_DEBUG, "Hello World\n")); return 0; } ERROR: /tmp/cccwdbA0.o: In function main': hello.cpp:(.text+0xa): undefined reference toACE_Log_Msg::last_error_adapter()' hello.cpp:(.text+0x13): undefined reference to ACE_Log_Msg::instance()' hello.cpp:(.text+0x43): undefined reference toACE_Log_Msg::conditional_set(char const*, int, int, int)' hello.cpp:(.text+0x5f): undefined reference to `ACE_Log_Msg::log(ACE_Log_Priority, char const*, ...)' collect2: ld returned 1 exit status Compilation failed.

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  • What C#/SQL Server feature did someone show you that made you say Wow!

    - by Randy Minder
    It's late Friday afternoon, and my mind is checking out for the week. So I thought I'd ask a light-hearted, interesting, question. Yesterday a co-worker showed me how he managed to save quite a bit of code and improve code reuse through the use of an anonymous delegate and the use of the Action function. My first thought was, "Wow, I had no idea you could do that!". I'm curious what sort of things someone showed you, either in c# or SQL Server, that made you stop and think, "Wow!". Randy

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