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• Does the Visual Studio debugger implicitly cast smaller types to int?

  - by emddudley

  Does the Visual Studio 2008 debugger implicitly cast all smaller data types to int? I have a function with the following signature: public int DoSomething(sbyte value) { ... } When pass in -127 and I look at the value argument the Visual Studio debugger (e.g. Watch window) shows me that it has the value 0xFFFFFF81. This is correct except for the fact that sbyte is only 8 bits wide; I would expect the debugger to show me that it is 0x81.

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• C++ static array leading to memory leak?

  - by MDonovin

  Lets say I have something like... void foo() { char c[100]; printf("this function does nothing useful"); } When foo is called, it creates the array on the stack, and when it goes out of scope, is the memory deallocated automatically? Or is c destroyed, but the memory remains allocated, with no way to access it/get it back except restarting the computer?

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• Prevent monitor from powering on

  - by concretemixer

  I'm turning off the monitor using SendMessage(HWND_BROUADCART, WM_SYSCOMMAND, SC_MONITORRPOWER, 2). That works, but the monitor turns back on when someone touches the keyboard or mouse. I tried to get rid of this using the DevicePowerSetDeviceState function with DEVICEPOWER_CLEAR_WAKEENABLED for the keyboard and mouse: it returns no error, but has no effect either. How can I prevent the monitor from powering back on in Vista and Windows7?

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• Return Statement in JS Constructors

  - by Tony

  What is the effect of a return statement in the body of JavaScript function when it's used as a constructor for a new object(with 'new' keyword)?

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• symfony autocompletion in netbeans?

  - by fayer

  im using netbeans to code a web application with symfony. it seems that netbeans doesnt support symfony in auto completion. could one fix this problem. cause i want to be able to click on symfony's functions and get to the source, eg helper function and model methods and classes.

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• Why does MPI_Init accept pointers to argc and argv?

  - by iamrohitbanga

  this is how we use MPI_Init function int main(int argc, char **argv) { MPI_Init(&argc, &argv); … } why does MPI_Init use pointers to argc and argv instead of values of argv?

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• How can i hack C# functions to call something else?

  - by acidzombie24

  Long story short. Clone() returns object and my code expects a cmd bc i was working with another lib but nearly the same interface. How can i use define or 'using' to have it call a function extension? I tried extending with the name Clone but it was ignored. However it does see Clone2()

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• open file for reading multibale time for reading

  - by alaamh

  I want to use dup2 to read from input file and redirect it to the input of exec function. but my problem is i have three running process all of them have to open same input file but they do different jobs. what your suggest in such case? i don't know if it is possible to use "cat data.txt" to feed the input for the three other process but i don't know the way to do that.

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• Get top rated item using AVG mysql

  - by user1876234

  I want to find top rated item using AVG function in mysql, right now my query looks like this: SELECT a.title, AVG(d.rating) as rating FROM in8ku_content a JOIN in8ku_content_ratings d ON a.id = d.article_id ORDER BY rating DESC Problem is that it takes AVG of all items and the result is not accurate, what should be changed here to get correct result ? Tables: in8ku_content [id, title] in8ku_content_ratings [id, article_id, rating]

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• R: How to replace elements of a data.frame?

  - by John

  I'm trying to replace elements of a data.frame containing "#N/A" with "NULL", and I'm running into problems: foo <- data.frame("day"= c(1, 3, 5, 7), "od" = c(0.1, "#N/A", 0.4, 0.8)) indices_of_NAs <- which(foo == "#N/A") replace(foo, indices_of_NAs, "NULL") Error in [<-.data.frame(*tmp*, list, value = "NULL") : new columns would leave holes after existing columns I think that the problem is that my index is treating the data.frame as a vector, but that the replace function is treating it differently somehow, but I'm not sure what the issue is?

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• converting html entities to unicode character?

  - by Michael

  &amp; -> `&` &gt; -> `>` any small library function that can handle this?

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• R equivalent of SELECT DISTINCT on two or more fields/variables

  - by wahalulu

  Say I have a dataframe df with two or more columns, is there an easy way to use unique() or other R function to create a subset of unique combinations of two or more columns? I know I can use sqldf() and write an easy "SELECT DISTINCT var1, var2, ... varN" query, but I am looking for an R way of doing this. It occurred to me to try ftable coerced to a dataframe and use the field names, but I also get the cross tabulations of combinations that don't exist in the dataset: uniques <- as.data.frame(ftable(df$var1, df$var2))

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• Use Network Services for FDT

  - by WillDonohoe

  Hi everybody, I've recently started using FDT, for a while I was using FlashDevelop, it had a really handy feature in Compiler options where you can set UseNetworkServices to false which would stop the compiled swf from connecting to the internet and became very useful for running standalone flash apps without security warnings when loading in an external xml file etc. Does anybody know if FDT has a similar function? If there isn't a way, then no worries, I can compile the project in Flash Develop, however it would be best if I can do it from FDT. Cheers guys, Will

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• windows media timer vs time.h which one will be more reliable in real time system?

  - by vxcvxcv

  i am using sleep function in ansi-c that gives a resolution up-to milliseconds but not exactly i faced uncertain delays, people suggest me to use windows media timer, i want to know the comparison between both is they enough reliable to use in real time system or to use some thing else, thanx in Advance.

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• Android setContentView operation

  - by stormin986

  I've read that it's important to call setContentView() early in an activity since it builds the view objects that may be manipulated by subsequent code in onCreate(). In terms of lifecycle, does the view get drawn to screen as soon as setContentView() is called, or does it allow the onCreate() function to build/populate the information in the view objects, and wait to actually draw it after onCreate() completes? Thanks!

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• How to get a char* pointer to a C++ string?

  - by cambr

  I have a C++ string. I need to pass this string to a function accepting char* parameter, for example - strchr(). a) How do I get that pointer? b) Is there some funtion equivalent to strschr() that works for C++ strings?

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• show date and time in php

  - by abhishek

  0 down vote hi, I have problem in showing $date="2011-02-10 15:26:20"; in the format of Thursday 10th of February 2011 03:26:20 PM in php. i know there is one date function in php and can be done in one line for example: but via this it will flash today date or so. i want to do it when user check any date and want that date in the format which i mention earlier. please revert me back as soon as posib.... thanks

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• With JS add default date on TextBox

  - by senzacionale

  <asp:TextBox ID="txtDate" runat="server" AutoPostBack="true" OnTextChanged="txtDate_TextChanged"></asp:TextBox> how can with Jquery add default date. I do not know where and when to call this code: function addDefaultDate() { if ($('#txtDate').val().length == 0) { var now = new Date(); $('#txtDate').text(now.getDate() + '.' + now.getMonth() + '.' + now.getYear()); } }

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• Sort chars in varchar2 alphabetically

  - by mtim

  I'm looking for a function that would sort chars in varchar2 alphabetically. Is there something built-in into oracle that I can use or I need to create custom in PL/SQL ?

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• Thread-safe get (accessor method)

  - by sonofdelphi

  I'm currently using the following code for thread-safe access of a variable. int gnVariable; void getVariableValue(int *pnValue) { acquireLock(); //Acquires the protection mechanism *pnValue = gnVariable; releaseLock(); //Releasing the protection mechanism } I would like to change my API signature to a more user-friendly int getVariableValue(void); How should I rewrite the function - such that the users of the API don't have to bother about the locking/unlocking details?

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• navigate to calling code Visual Studio

  - by Mohan

  Hi Everybody, I want to know that we can use F12 to jump to the function that is called from this code , if i have to return to the code again how I can do this.

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• I want to make animation which turn the leaves of a book for iPhone.

  - by Beomseok

  link text I want to make page-flip animation for iPhone. I know that iPhone has curlUp and curlDown animation function. But I'm not use. How to do page-flip animation for iPhone. Advice for me.

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• How can I get relative path of the folders in my project? (java)

  - by masterkapu

  How can I get the relative path of the folders in my project (using code)? I created new folder in my project and I want its relative path so no matter where is the app the path will be correct. Maybe this can be useful: I trying to do it not inside any function just inside the class and I want to init with it a final variable. the app is android and the class is "extends Activity" thanks

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• Are there any example of multiple recursion?

  - by Yassir

  Are there any example for a recursive function that call an other one which calls the first one too ? example function1() { //do something f2(); //do something } function2() { //do something f1(); //do something }

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• Delegates with explicit "this" pointer?

  - by Qwertie

  Is it possible to adapt a method like this function "F" class C { public void F(int i); } to a delegate like Action<C,int>? I have this vague recollection that Microsoft was working on supporting this kind of adaptation. But maybe I misremembered!

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