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• Malicious javascript code in my website

  - by Depami

  I found this code in my website sourcecode: var _0xd28d=["\x5F\x30\x78\x33\x32\x6C\x73\x6A\x39","\x5F\x78\x6C\x74","\x5F\x78\x38\x66\x6B\x63\x33","\x66\x6C\x6F\x6F\x72","\x72\x61\x6E\x64\x6F\x6D","\x6C\x65\x6E\x67\x74\x68"];var _0x9ae4=[_0xd28d[0],12,_0xd28d[1],_0xd28d[2],2,31,Math,_0xd28d[3]];var _0xcd6e=[_0x9ae4[5],_0x9ae4[0],_0x9ae4[_0x9ae4[4]],_0x9ae4[3],4,_0xd28d[4]];var _0xr6g0={};_0xr6g0[_0xcd6e[2]]=0;_0xr6g0[_0x9ae4[4]]=function (){var _0x4c68x4={};_0x4c68x4[_0xd28d[0]]=_0x9ae4[0];do{_0x4c68x4[_0x9ae4[0]]+=_0x4c68x4[_0xd28d[0]][_0x9ae4[6][_0x9ae4[7]](_0x9ae4[6][_0xcd6e[5]]()*_0x4c68x4[_0xd28d[0]][_0xd28d[5]])];} while(_0x4c68x4[_0xd28d[0]][_0xd28d[5]]<_0xcd6e[0]);;_0x4c68x4[_0x4c68x4[_0x9ae4[0]]]=function (){_0xr6g0[_0xcd6e[2]]++;_0xr6g0[_0xcd6e[2]]%=_0x9ae4[1];return _0x4c68x4[_0x4c68x4[_0x9ae4[0]]];} ;return _0x4c68x4[_0x4c68x4[_0xcd6e[1]]];} ;_0xr6g0[_0x9ae4[_0xcd6e[4]]]()()()()()()()()()()()()()()()(); I was wondering, what is it?

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• JQuery: animate() doesn't work as expected in IE...

  - by swalkner

  Hi, I'm getting crazy with this IE 7... == hhttp://neu.emergent-innovation.com/ Why does following function not work in IE 7, but perfectly with Firefox? Is there a bug in the animate-function? function accordion_starting_page(){ // hide all elements except the first one $('#FCE-Inhalt02-ContentWrapper .FCE-Fade:not(:first)').css("height", "0").hide(); $('#FCE-Inhalt02-ContentWrapper .FCE-Fade:first').addClass("isVisible"); $('div.FCE-Title').click(function(){ // if user clicks on an already opened element => do nothing if (parseFloat($(this).next('.FCE-Fade').css("height")) > 0) { return false; } var toHide = $(this).siblings('.FCE-Fade.isVisible'); toHide.removeClass("isVisible"); // close all opened siblings toHide.animate({"height": "0", "display": "none"}, 1000); $(this).next('.FCE-Fade').addClass("isVisible").animate({"height" : "200"}, 1000); return false; }); } Thank you very much for your help...

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• Delphi JavaDoc Parser

  - by Christian Sciberras

  I need to parse JavaDoc (documentation) comment syntax with Delphi 7. It is well known in the java world as "JavaDoc", but I'm actually doing this for PHP, ie, parsing JavaDoc in some PHP code. Call it PHPDoc if you want to. To see how these comments work, you can see RAD IDEs like NetBeans etc. Example of JavaDoc for addition function: /** * Adds to numbers together. * @param integer $a The first number. * @param integer $b The second number. * @return integer The resulting number. */ function add($a,$b){ return $a+$b; } Please note that the parser need not be full, ie, parsing all of the PHP code. I mean, it's perfectly fine if it accepted the comment text only as input. Cheers, Chris.

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• PHP in_array comparision with 0

  - by Extrakun

  Why does this always return true? in_array(0, 'profile');

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• Communication between lexer and parser

  - by FredOverflow

  Every time I write a simple lexer and parser, I stumble upon the same question: how should the lexer and the parser communicate? I see four different approaches: The lexer eagerly converts the entire input string into a vector of tokens. Once this is done, the vector is fed to the parser which converts it into a tree. This is by far the simplest solution to implement, but since all tokens are stored in memory, it wastes a lot of space. Each time the lexer finds a token, it invokes a function on the parser, passing the current token. In my experience, this only works if the parser can naturally be implemented as a state machine like LALR parsers. By contrast, I don't think it would work at all for recursive descent parsers. Each time the parser needs a token, it asks the lexer for the next one. This is very easy to implement in C# due to the yield keyword, but quite hard in C++ which doesn't have it. The lexer and parser communicate through an asynchronous queue. This is commonly known under the title "producer/consumer", and it should simplify the communication between the lexer and the parser a lot. Does it also outperform the other solutions on multicores? Or is lexing too trivial? Is my analysis sound? Are there other approaches I haven't thought of? What is used in real-world compilers? It would be really cool if compiler writers like Eric Lippert could shed some light on this issue.

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• Why is my implementation of strcmp not returning the proper value?

  - by Avanish Giri

  Why is this printing out 0 back in main but 6 when it is inside of the strcmp function? 7 int main() 8 { 9 char* str = "test string"; 10 char* str2 = "test strong"; 11 //printf("string length = %d\n",strlen(str)); 12 13 int num = strcmp(str,str2); 14 15 printf("num = %d\n",num); 16 } 29 int strcmp(char* str, char* str2) 30 { 31 if(*str == '\0' && *str2 == '\0') 32 return 0; 33 if(*str2 - *str == 0) 34 { 35 strcmp(str+1,str2+1); 36 } 37 else 38 { 39 int num = *str2 - *str; 40 cout << "num = " <<num<<endl; 41 return num; 42 } 43 } The output is: num = 6 num = 0 Why is it printing 0 when obviously the value that it should be returning is 6?

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• regular expression to check file content type is .doc or not?

  - by Pandiya Chendur

  When i use a file upload i use to check file contenttype with regular expressions... For ex private bool IsImage(HttpPostedFile file) { if (file != null && Regex.IsMatch(file.ContentType, "image/\\S+") && file.ContentLength > 0) { return true; } return false; } This returns my file is an image or not... How to check it is a word(.doc/.docx) document or not using c#...

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• One Controller is Sometimes Bound Twice with Ninject

  - by Dusda

  I have the following NinjectModule, where we bind our repositories and business objects: /// <summary> /// Used by Ninject to bind interface contracts to concrete types. /// </summary> public class ServiceModule : NinjectModule { /// <summary> /// Loads this instance. /// </summary> public override void Load() { //bindings here. //Bind<IMyInterface>().To<MyImplementation>(); Bind<IUserRepository>().To<SqlUserRepository>(); Bind<IHomeRepository>().To<SqlHomeRepository>(); Bind<IPhotoRepository>().To<SqlPhotoRepository>(); //and so on //business objects Bind<IUser>().To<Data.User>(); Bind<IHome>().To<Data.Home>(); Bind<IPhoto>().To<Data.Photo>(); //and so on } } And here are the relevant overrides from our Global.asax, where we inherit from NinjectHttpApplication in order to integrate it with Asp.Net Mvc (The module lies in a separate dll called Thing.Web.Configuration): protected override void OnApplicationStarted() { base.OnApplicationStarted(); //routes and areas AreaRegistration.RegisterAllAreas(); RegisterRoutes(RouteTable.Routes); //Initializes a singleton that must reference this HttpApplication class, //in order to provide the Ninject Kernel to the rest of Thing.Web. This //is necessary because there are a few instances (currently Membership) //that require manual dependency injection. NinjectKernel.Instance = new NinjectKernel(this); //view model factory. NinjectKernel.Instance.Kernel.Bind<IModelFactory>().To<MasterModelFactory>(); } protected override NinjectControllerFactory CreateControllerFactory() { return base.CreateControllerFactory(); } protected override Ninject.IKernel CreateKernel() { var kernel = new StandardKernel(); kernel.Load("Thing.Web.Configuration.dll"); return kernel; } Now, everything works great, with one exception: For some reason, sometimes Ninject will bind the PhotoController twice. This leads to an ActivationException, because Ninject can't discern which PhotoController I want. This causes all requests for thumbnails and other user images on the site to fail. Here is the PhotoController in it's entirety: public class PhotoController : Controller { public PhotoController() { } public ActionResult Index(string id) { var dir = Server.MapPath("~/" + ConfigurationManager.AppSettings["UserPhotos"]); var path = Path.Combine(dir, id); return base.File(path, "image/jpeg"); } } Every controller works in exactly the same way, but for some reason the PhotoController gets double-bound. Even then, it only happens occasionally (either when re-building the solution, or on staging/production when the app pool kicks in). Once this happens, it continues to happen until I redeploy without changing anything. So...what's up with that?

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• Is an ArrayList automaticaly declared static ,if it is an instance variable?(Java)

  - by Alex

  Hy ,what i`m trying to do is something like this: private class aClass { private ArrayList idProd; aClass(ArrayList prd) { this.idProd=new ArrayList(prd); } public ArrayList getIdProd() { return this.idProd; } } So if i have multiple instances of ArrayLIst (st1 ,st2 ,st3) and I want to make new objects of aClass : { aClass obj1,obj2,obj3; obj1=new aClass(st1); obj2=new aClass(st2); obj3=new aClass(st3); }why all of the aClass objects will return st3 if I access the method getIdProd() for each of them(obj1..obj3)? is an arraylist as a instance variable automatically declared static?

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• json returning string instead of object

  - by peter

  i have $age = implode(',', $wage); // which is object return: [1,4],[7,11],[15,11] $ww = json_encode($age); and then i retrieve it here var age = JSON.parse(<?php echo json_encode($ww); ?>); so if i make alert(typeof(<?php echo $age; ?>)) // object alert(typeof(age)) //string in my case JSON.parse retuned as string. how can i let json return as object? EDIT: var age = JSON.parse(<?php echo $ww; ?>); // didnt work , its something syntax error

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• Form validation with optional File Upload field callback

  - by MotiveKyle

  I have a form with some input fields and a file upload field in the same form. I am trying to include a callback into the form validation to check for file upload errors. Here is the controller for adding and the callback: public function add() { if ($this->ion_auth->logged_in()): //validate form input $this->form_validation->set_rules('title', 'title', 'trim|required|max_length[66]|min_length[2]'); // link url $this->form_validation->set_rules('link', 'link', 'trim|required|max_length[255]|min_length[2]'); // optional content $this->form_validation->set_rules('content', 'content', 'trim|min_length[2]'); $this->form_validation->set_rules('userfile', 'image', 'callback_validate_upload'); $this->form_validation->set_error_delimiters('<small class="error">', '</small>'); // if form was submitted, process form if ($this->form_validation->run()) { // add pin $pin_id = $this->pin_model->create(); $slug = strtolower(url_title($this->input->post('title'), TRUE)); // path to pin folder $file_path = './uploads/' . $pin_id . '/'; // if folder doesn't exist, create it if (!is_dir($file_path)) { mkdir($file_path); } // file upload config variables $config['upload_path'] = $file_path; $config['allowed_types'] = 'jpg|png'; $config['max_size'] = '2048'; $config['max_width'] = '1920'; $config['max_height'] = '1080'; $config['encrypt_name'] = TRUE; $this->load->library('upload', $config); // upload image file if ($this->upload->do_upload()) { $this->load->model('file_model'); $image_id = $this->file_model->insert_image_to_db($pin_id); $this->file_model->add_image_id_to_pin($pin_id, $image_id); } } // build page else: // User not logged in redirect("login", 'refresh'); endif; } The callback: function validate_upload() { if ($_FILES AND $_FILES['userfile']['name']): if ($this->upload->do_upload()): return true; else: $this->form_validation->set_message('validate_upload', $this->upload->display_errors()); return false; endif; else: return true; endif; } I am getting the error Fatal error: Call to a member function do_upload() on a non-object on line 92 when I try to run this. Line 92 is the if ($this->upload->do_upload()): line in the validate_upload callback. Am I going about this the right way? What's triggering this error?

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• Apply function to one element of a list in Python

  - by user189637

  I'm looking for a concise and functional style way to apply a function to one element of a tuple and return the new tuple, in Python. For example, for the following input: inp = ("hello", "my", "friend") I would like to be able to get the following output: out = ("hello", "MY", "friend") I came up with two solutions which I'm not satisfied with. One uses a higher-order function. def apply_at(arr, func, i): return arr[0:i] + [func(arr[i])] + arr[i+1:] apply_at(inp, lambda x: x.upper(), 1) One uses list comprehensions (this one assumes the length of the tuple is known). [(a,b.upper(),c) for a,b,c in [inp]][0] Is there a better way? Thanks!

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• Why does DebugActiveProcessStop crash my debugging app?

  - by SparkyNZ

  I have a debugging program which I've written to attach to a process and create a crash dump file. That part works fine. The problem I have is that when the debugger program terminates, so does the program that it was debugging. I did some Googling and found the DebugActiveProcessStop() API call. This didn't show up in my older MSDN documentation as it was only introduced in Windows XP so I've tried loading it dynamicall from Kernel32.dll at runtime. Now my problem is that my debugger program crashes as soon as the _DebugActiveProcessStop() call is made. Can somebody please tell me what I'm doing wrong? typedef BOOL (*DEBUGACTIVEPROCESSSTOP)(DWORD); DEBUGACTIVEPROCESSSTOP _DebugActiveProcessStop; HMODULE hK32 = LoadLibrary( "kernel32.dll" ); if( hK32 ) _DebugActiveProcessStop = (DEBUGACTIVEPROCESSSTOP) GetProcAddress( hK32,"DebugActiveProcessStop" ); else { printf( "Can't load Kernel32.dll\n" ); return; } if( ! _DebugActiveProcessStop ) { printf( "Can't find DebugActiveProcessStop\n" ); return; } ... void DebugLoop( void ) { DEBUG_EVENT de; while( 1 ) { WaitForDebugEvent( &de, INFINITE ); switch( de.dwDebugEventCode ) { case CREATE_PROCESS_DEBUG_EVENT: hProcess = de.u.CreateProcessInfo.hProcess; break; case EXCEPTION_DEBUG_EVENT: // PDS: I want a crash dump immediately! dwProcessId = de.dwProcessId; dwThreadId = de.dwThreadId; WriteCrashDump( &de.u.Exception ); return; case CREATE_THREAD_DEBUG_EVENT: case OUTPUT_DEBUG_STRING_EVENT: case EXIT_THREAD_DEBUG_EVENT: case EXIT_PROCESS_DEBUG_EVENT : case LOAD_DLL_DEBUG_EVENT: case UNLOAD_DLL_DEBUG_EVENT: case RIP_EVENT: default: break; } ContinueDebugEvent( de.dwProcessId, de.dwThreadId, DBG_CONTINUE ); } } ... void main( void ) { ... BOOL bo = DebugActiveProcess( dwProcessId ); if( bo == 0 ) printf( "DebugActiveProcess failed, GetLastError: %u \n",GetLastError() ); hProcess = OpenProcess( PROCESS_ALL_ACCESS, TRUE, dwProcessId ); if( hProcess == NULL ) printf( "OpenProcess failed, GetLastError: %u \n",GetLastError() ); DebugLoop(); _DebugActiveProcessStop( dwProcessId ); CloseHandle( hProcess ); }

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• Hibernate: getting a record but it's being updated in the database?

  - by jack

  For some reason Hibernate seems to be keeping my session open and updating the object without me explicitely invoking a save/update/saveorupdate. I guess the session is staying open and it's beeing marked as dirty. However this is not the desired behaviour, so what's the cleanest way to fix this? The issue seems to occur because I store a phone number without formatting in the database but the getter of the object returns a formatted telephone number. My flow: go to a jsp = controller = service = dao DAO getter function if(userId != 0) { return (User)dbFactory.get(User.class, userId); } return null; The service just passes it to the controller and the controller puts te User object in the request scope. I display it on my JSP page using EL.

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• Checking if an element is visible in Chrome using Selenium Remote WebDriver

  - by Stuart

  Is there a cross browser solution to check if an element is visible using WebDriver? The solution for IE and firefox is to cast the object to a RenderedRemoteWebElement and then call the property Displayed. I'm using the following methods to return if a element is visible: /// <summary> /// Check if the control is visible. /// </summary> public bool IsVisible() { IWebElement control = mSelenium.FindElement(mFindBy); return ((RenderedRemoteWebElement)control).Displayed; } The problem is when I run this using Chrome, I get an exception when casting to type RenderedRemoteWebElement, this is not really the problem as I can catch this, but I need to a solution to check if an element is visible in chrome. Thanks

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• Get value from ajax-loaded form before submitting

  - by ldvldv

  Hi, I have an app that loads an ajax form when a button is clicked. I then want to check a value in that ajax loaded form called "comment_content" so that I don't send an ajax request if the comment_content is empty. I can capture the form submission using the live method, however, I can't capture the form element because it needs an element. I was looking at livequery but was wondering if there is a more efficient way by using live or if that I shouldn't even bother? Your help is very much appreciated. $("#comment_submit").live('click', function(){ var comment = $("#comment_content").html(); if(comment == ""){ $("#notice").html("").stop(true, true); $("#notice").append("<p>Are you going to write something in that comment?</p>"); $('#notice').slideDown().delay(2000).slideUp(); return false; } return true; });

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• Mouse stops working after changing function

  - by heyohletsgo

  I'm making a console board game on c++, and i've been able to make the mouse work in the first function, the menu one, however, when i get to the getmove function and need to click on a house, it simply doesn't work.. Can anyone help? This is the class with the mouse. #include <cstdlib> #include <iostream> #include <process.h> #include <windows.h> #include <time.h> #include <stdio.h> using namespace std; void Game(); int Chu(); int rato(int &row, int &col) { HANDLE hIn; hIn = GetStdHandle(STD_INPUT_HANDLE); bool Continue = TRUE; INPUT_RECORD InRec; DWORD NumRead; HWND window = GetConsoleWindow(); POINT cursorPos; RECT wpos; int x = 0; int y = 0; //cout << hIn << endl; FlushConsoleInputBuffer(hIn); while (Continue) { ReadConsoleInput(hIn, &InRec, 1, &NumRead); switch (InRec.EventType) { case MOUSE_EVENT: if (GetAsyncKeyState(VK_LBUTTON)) { cout << "RATO"<<endl; GetWindowRect(window, &wpos); GetCursorPos(&cursorPos); cursorPos.x -= wpos.left; cursorPos.y -= wpos.top; x = (cursorPos.x - 5) / 16; y = (cursorPos.y - 25) / 24; cout << x << " " << y << endl; row = x; col = y; return row; } else if (GetAsyncKeyState(VK_RBUTTON)){ GetWindowRect(window, &wpos); GetCursorPos(&cursorPos); cursorPos.x -= wpos.left; cursorPos.y -= wpos.top; x = (cursorPos.x - 5) / 16; y = (cursorPos.y - 25) / 24; cout << x << " " << y << endl; row = x; col = y; return row; } break; } } } int main() { cout << "\n\n\n click on the stars" << endl; cout << " \n\n\n *******" << endl; int z = 0; int x = 0; int y = 0; int xo = 0; switch (rato(x,y)) { case 1: Game(); break; case 2: Game(); break; case 3: Game(); break; case 4: rato(x, y); break; case 5: rato(x, y); break; case 6: Game(); break; case 7: Game(); break; case 8: Game(); break; case 9: Game(); break; default: cout << "click again"; break; } return 0; } void Game() { int x = 0; int y = 0; int i = 0; cout << "GAME" << endl; do{ i++; rato(x, y); } while (i <= 2); Chu(); } int Chu() { int x = 0; int y = 0; int a = 0; int b = 0; int xo = 0; int yo = 0; cout << "\ click on the stars" << endl; HANDLE hConsole; hConsole = GetStdHandle(STD_OUTPUT_HANDLE); do{ xo = rato(x, y); if (0 <= xo && xo <= 5) { a = 1;} else cout << "CLICK AGAIN" << endl; } while (xo!=0); cout << a; return a; system("PAUSE"); }

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• Is calling of overload operator-> resolved at compile time?

  - by Brent

  when I tried to compile the code: (note: func and func2 is not typo) struct S { void func2() {} }; class O { public: inline S* operator->() const; private: S* ses; }; inline S* O::operator->() const { return ses; } int main() { O object; object->func(); return 0; } there is a compile error reported: D:\code>g++ operatorp.cpp -S -o operatorp.exe operatorp.cpp: In function `int main()': operatorp.cpp:27: error: 'struct S' has no member named 'func' it seems that invoke the overloaded function of "operator-" is done during compile time? I'd added "-S" option for compile only.

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• (Django) Trim whitespaces from charField

  - by zardon

  How do I strip whitespaces (trim) from the end of a charField in Django? Here is my Model, as you can see I've tried putting in clean methods but these never get run. I've also tried doing name.strip(), models.charField().strip() but these do not work either. Is there a way to force the charField to trim automatically for me? Thanks. class Employee(models.Model): """(Workers, Staff, etc)""" name = models.CharField(blank=True, null=True, max_length=100) # This never gets run def clean_variable(self): data = self.cleaned_data['variable'].strip() return data def __unicode__(self): return self.name class Meta: verbose_name_plural = 'Employees' # This never gets run either class EmployeesForm(forms.ModelForm): class Meta: model = Employee def clean_description(self): #if not self.cleaned_data['description'].strip(): # raise forms.ValidationError('Your error message here') self.cleaned_data['name'].strip()

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• Fastest implementation of the frac function in C#

  - by user349937

  I would like to implement a frac function in C# (just like the one in hsl here http://msdn.microsoft.com/en-us/library/bb509603%28VS.85%29.aspx) but since it is for a very processor intensive application i would like the best version possible. I was using something like public float Frac(float value) { return value - (float)Math.Truncate(value); } but I'm having precision problems, for example for 2.6f it's returning in the unit test Expected: 0.600000024f But was: 0.599999905f I know that I can convert to decimal the value and then at the end convert to float to obtain the correct result something like this: public float Frac(float value) { return (float)((decimal)value - Decimal.Truncate((decimal)value)); } But I wonder if there is a better way without resorting to decimals...

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• attaching the link of the article in href

  - by Aruna

  hi , i am having the link like <a href="http://twitter.com/home/?status='.$markme_ddesc.'" onclick="OpenPopup(this.href); return false">Click Here to See Popup</a> for bookmarking the article clicked to twitter .. The above one just add the articles message to twitter.. But i am trying to add my article link also to twitter,.. so i am using the location.href but its not working tat is its not showing me the articles site name.. THe below is the one i tried.. <a href="http://twitter.com/home/?status=\'+encodeURIComponent(location.href)+\'-'.$markme_ddesc.'" onclick="OpenPopup(this.href); return false">Click Here to See Popup</a> Thanks i advance.. Help me to get out of this...

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• Solving for the coefficent of linear equations with one known coefficent

  - by CppLearner

  clc; clear all; syms y a2 a3 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % [ 0.5 0.25 0.125 ] [ a2 ] [ y ] % [ 1 1 1 ] [ a3 ] = [ 3 ] % [ 2 4 8 ] [ 6 ] [ 2 ] %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% M = [0.5 0.25 0.125; 1 1 1; 2 4 8]; t = [a2 a3 6]; r = [y 3 2]; sol = M * t' s1 = solve(sol(1), a2) % solve for a2 s2 = solve(sol(2), a3) % solve for a3 This is what I have so far. These are my output sol = conj(a2)/2 + conj(a3)/4 + 3/4 conj(a2) + conj(a3) + 6 2*conj(a2) + 4*conj(a3) + 48 s1 = - conj(a3)/2 - 3/2 - Im(a3)*i s2 = - conj(a2) - 6 - 2*Im(a2)*i sol looks like what we would have if we put them back into equation form: 0.5 * a2 + 0.25 * a3 + 0.125 * a4 a2 + a3 + a4 = 3 2*a2 + 4*a3 + 8*a4 = 2 where a4 is known == 6. My problem is, I am stuck with how to use solve to actually solve these equations to get the values of a2 and a3. s2 solve for a3 but it doesn't match what we have on paper (not quite). a2 + a3 + 6 = 3 should yield a3 = -3 - a2. because of the imaginary. Somehow I need to equate the vector solution sol to the values [y 3 2] for each row.

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• Help writing getstring function

  - by volting

  Im having some trouble writing a getstring function, this is what I have so far. Regards, V const char* getstring() { char *buffer; int i = 255; buffer = (char *)malloc(i*sizeof(char)); *buffer = getchar(); while ( *buffer != '\n' ) { buffer++; *buffer = getchar(); } *buffer = '\0'; const char* _temp = buffer; return _temp; } int main() { char* temp = getstring(); for ( ;temp++ ; *temp != '\0') { printf("%c", *temp); } return 0; }

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• How cast in XML for aggregate functions

  - by renegm

  In SQL Server 2008. I need execute a query like that: DECLARE @x AS xml SET @x=N'<r><c>First Text</c></r><r><c>Other Text</c></r>' SELECT @x.query('fn:max(r/c)') But return nothing (apparently because convert xdt:untypedAtomic to numeric) How to "cast" r/c to varchar? Something like SELECT @x.query('fn:max(«CAST(r/c «AS varchar(20))»)') Edit: Using Nodes the function MAX is from T-SQL no fn:max function In this code: DECLARE @x xml; SET @x = ''; SELECT @x.query('fn:max((1, 2))'); SELECT @x.query('fn:max(("First Text", "Other Text"))'); both query return expected: 2 and "Other Text" fn:max can evaluate string expression ad hoc. But the first query dont work. How to force string arguments to fn:max?

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• How to write following MongoDB query in C# Driver?

  - by user3043457

  I wrote the exact query I need in Mongo console, but I'm having trouble rewriting it in C# driver. Here's a sample of the document, it's simple dictionary: { "_id" : ObjectId("539716bc101c588f941e2c27"), "_t" : "DictionaryDocument", "CsvSeparator" : ",", "SelectedAccounts" : "0", ... } Here's the query: db.settings.find({"SelectedAccounts" :{$exists:true}},{"SelectedAccounts":1, "_id":0} ) Now, I got the first part, Find with exists working, but how to write the second parameter in C# driver? I'd just like a single string as a result, not entire document. Here's C# code I got so far: _collection.FindOneAs(typeof(DictionaryDocument), Query.Exists(key)); key in this case is "SelectedAccounts". I'd like the query to filter and return only the data I need, I don't want to return all the results and search on the C# side. EDIT: I wouldn't mind if _id was passed back, but I don't need it. So only this part would work if it could be converted in C#: db.settings.find({"SelectedAccounts" :{$exists:true}},{"SelectedAccounts":1} )

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