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Search found 27144 results on 1086 pages for 'tail call optimization'.

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• Run a shell command from Django

  - by Badifunky

  Hello, I'm developing a web page in Django (using apache server) that needs to call a shell command to enable/dissable some daemons. I'm try to do it with os.system(service httpd restart 1>$HOME/out 2>$HOME/error) and this command doesn't return anything. Any idea how can i fix this?

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• mvc and entity framework, display results of linq query

  - by WingMan20-10

  I want to return display the results of a query i did in linq in the my view page for a MVC application. I am call my veiew then passing model, the model would the the results of my query any way i can do this

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• PHP Redirect after execution of code

  - by UmYeah

  I have a php page that takes in a bunch of url parameters and sends out an email. I am trying to have this page call another web page using the same url parameters, after the mail is sent. If I do the following, will my email be sent reliably? Is a redirect what I really want to do? Random code to send email... header('Location: http://www.othersite.com/' + $_SERVER["REQUEST_URI"]);

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• Including different code for other home screen replacement screens

  - by radicam2

  I have put together a Skin for OpenHome but have since ran across AHome code for their IPhone theme and was wondering that if I included for AHome their Dock_Bg or widget_drawer among other things which is not on OpenHome that the Launcher for the respective screen replacement would just call the items it uses.I want to keep the mb as low as I can but reach more handsets.I can just make seperate ones but see many that include even Freshface as well as OpenHome and AHome.

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• importing class and its function from another file [Python]

  - by user343934

  Hi everyone, I am having little bit problem in importing classes in python. My work flow goes like this -index.py ---class template: ------def header(): ------def body(): ------def footer(): -display.py I want to call function header(), body() and footer () in my display.py page. Will anyone make me clear about this issue in python. Thanks for your concern.

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• run MsBuild tasks (targets?) after the solution is built?

  - by JoelFan

  Since this question seems to have baffled / underwhelmed SO I will rephrase it with a partially formed idea of my own. Could I somehow set up a batch file or something that runs after the whole solution is built, and this batch file would call msbuild to build specific targets inside a certain project? In order for it to work, I would have to somehow force msbuild build the target without regard to whether it thinks it's "up to date", because that is the core issue I'm butting up against.

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• Detect mouse over iframe?

  - by makeee

  I'd like call a function every time a user drags their mouse over an iframe (which points to a different domain). Is this possible?

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• How do I bring a processes window to the foreground on X Windows? (C++)

  - by Lorenz03Tx

  I have the PID for the process (and the name), I want to bring it to the front on linux (ubuntu). On mac I would simply do SetFrontProcess(pid), on windows I'd enumerate the windows pick out the one I wanted and call SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE); but I'm at a loss of what to do on linux. I've looked at X Lib a bit, but most/all of those functions seem to operate on windows inside your process. Thanks in advanced.

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• Using `g_object_set_data` for passing user name.

  - by PP

  I am using g_object_set_data to set user name with event_box so in call back i can get it with in event_box pointer. g_object_set_data(G_OBJECT(event_box), "user_name", (gpointer)(user_name) ); but problem is that i am setting user_name which is not an pointer allocated string. It is an local string (not allocated on hip) which gets destroyed. So is it necessary to allocated and then use the pointer, i just want to associate one name with this event_box.

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• Is it possible to unpage all memory in Windows?

  - by Hack59

  I have plenty of RAM, however, after starting and finishing a large number of processes, it seems that most of the applications' virtual memory has been paged to disk, and switching to any of the older processes requires a very long time to load the memory back into RAM. Is there a way, either via Windows API or via kernel call, to get Windows to unpage all (or as much as possible) memory? Maybe by stepping through the list of running processes and get the memory manager to unpage each process's memory?

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• empty() doesn't work with codeigniter input class

  - by BabyAzerty

  This is really weird. Whenever I call something like if(empty($this->input->post("foo")){//blabla} The whole PHP is "down" and I get a blank page from the website (even when I don't pass through this empty(input) line). I know this is not the right method and it is stupid, I change the code to if(!$this->input->post("foo")){//blabla} Better I guess ? Seriously, how come the empty(input) breaks down the entire PHP page ? (I can't get any echo "something").

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• MySQL Can't Handle Parameters for Stored Procedures

  - by Takkun

  I'm trying to make a stored procedure but it doesn't seem to be recognizing the parameters I've given it. Procedure create procedure test_pro(IN searchTable VARCHAR(55)) begin select * from searchTable limit 10; end // Trying to execute mysql> call test_pro('exampleTable'); ERROR 1146 (42S02): Table 'db.searchTable' doesn't exist It isn't replacing the searchTable with the parameter that is passed in.

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• Need a scenario where would fail Array.ConstrainedCopy()

  - by Sir Psycho

  Hi, Just playing around with some of the APIs in .NET and I can't seem to find a way to cause Array.ConstrainedCopy() fail. According to MSDN, it's treated as an atomic operation. If it fails during the copy, the entire call fails resulting in no elements being copied as opposed to its Array.Copy() counterpart. Can someone demonstrate this or tell me how to do this?

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• SUM minutes SQL server

  - by sandu

  HI guys, My litle problem goes like this : I have this columns : PHONE_NR , TIME ( time field ), Meaning the calling telephone number and call duration. I need to group phone nr and sum the minutes. Filds looks like this : nr time 726028xxx 00:07:07 735560css 00:07:37 726028xxx 00:07:55

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• C++: Life span of temporary arguments?

  - by shoosh

  When creating a new instance of a MyClass as an argument to a function like so: class MyClass { MyClass(int a); }; myFunction(MyClass(42)); does the standard make any grantees on the timing of the destructor? Specifically, can I assume that the it is going to be called before the next statement after the call to myFunction() ?

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• Posix equivalent of LocalAlloc(LMEM_ZEROINIT, size)

  - by Tristan

  I have code which works on windows, that calls LocalAlloc as follows: LocalAlloc(LMEM_ZEROINIT, size) I need the equivalent malloc or calloc call to get this to work on Unix systems, through Mono. Simple answer?

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• PHP: Prevent a function from returning value?

  - by Industrial

  Hi everybody, How could I make sure that the startProcess(); function is being called, but without halting the execution for myFunction(). I'll guess that there's a way to call a function and prevent it from returning it's value to thereby accomplishing this? Pseudo-code: function myFunction() { startProcess(); return $something; } function startProcess() { sleep(5); // Do stuff that user doesn't should have to wait for. }

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• Problem with C++ classes

  - by Mike

  I have a class defined called extBlock. I then make an instance of that class with this extBlock mainBlock = new extBlock(1, 1024); I get this error: error C2440: 'initializing' : cannot convert from 'extBlock *' to 'extBlock' Can anyone help me with why I am getting this error. I have seen examples online of declaring it like this with a pointer extBlock *mainBlock = new extBlock(1, 1024); But if I do it this way it does not let me call the functions of mainBlock

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• Function callers in C?

  - by thyrgle

  So I was wondering how they work. To explain what I mean by a "function caller" a good example of what I mean would be glutTimerFunc, it is able to take in a function as a parameter and call it even with it not knowing it is declared. How is it doing this?

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• setting an animation to requestFocus() in Android?

  - by Gooner

  I have an android application in which once when I call requestFocus() to a view I want to go to that view in an animated way (for eg: in an accelerated way, or a slow animation). All my views are in a ScrollView.

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• difference between erase and remove/remove_if algorithms?

  - by Eric

  What is really the difference between the algorithms remove and remove_if and the member function erase? Does both of them result in a call to the removed objects destructor?

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• Why doesn't this inner class compile?

  - by Vincenzo

  This is my code: #include <algorithm> class A { void f() { struct CompareMe { bool operator() (int i, int j) { return i < j; } } comp; int a[] = {1, 2, 3, 4}; int found = std::min_element(a[0], a[3], comp); } } Error message: no matching function for call to ‘min_element(int&, int&, A::f()::CompareMe&) What am I doing wrong?

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• C++ Edit Box Text Change

  - by user1218395

  Is their any cases in C++ Like these case WM_COMMAND: switch(LOWORD(wParam)) That happen when you change the text of a edit Box, I need to call a function when i change in edit box and store the value of the edit box into a Integer. case EditCD: //ID of your edit { if (HIWORD(wParam) == EN_CHANGE) MessageBox(hwnd, "Text!", "Test!", MB_OK); return TRUE; } Doesnt work did i do it wrong?

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• Prototype with a callback problem

  - by Lisio

  function Foo() { this.bar = false; } Foo.prototype={ onLoad: function() { this.bar=true; }, create: function(id) { SomeClass.someMethod({ id: id, onWorkIsDone: this.onLoad }); } }; var temp=new Foo(); temp.create(); This sample has a logic error in string 'onWorkIsDone: this.onLoad'. What I have to place instead of 'this.onLoad' to make SomeClass call exactly the temp.onLoad method when it finishes it's work?

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• Why thread started by ScheduledExecutorService.schedule() never quits?

  - by moonese

  If I create a scheduled task by calling ScheduledExecutorService.schedule(), it never quits after execution, is it a JDK bug, or I just miss something? note: doSomething() is empty method below. public static void doSomething() { } public static void main(String[] args) { ScheduledFuture scheduleFuture = Executors.newSingleThreadScheduledExecutor().schedule(new Callable() { public Void call() { try { doSomething(); } catch (Exception e) { e.printStackTrace(); } return null; } }, 1, TimeUnit.SECONDS); }

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