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Search found 6374 results on 255 pages for 'double underscore'.

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• Better to use an OR or an AND when checking for NULLs in C if statements?

  - by Crazy Chenz

  Came across a line in OpenSSL that made me do a double take... if (!*pos) return NULL; if (!*pos || ((*pos)->flags == FLAGS)) return blah; Is there a (performance/security/concurrecy) difference in doing that instead of: if (!*pos) return NULL; if (*pos && ((*pos)->flags == FLAGS)) return blah; Thanks, Chenz

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• How to use margin as property of WPF usercontrol?

  - by rockrule

  How to use margin as property of WPF usercontrol? public Double pCusSPAge { get { return btnCusSPAge.Margin.Left; } set { btnCusSPAge.Margin = new Thickness(value); if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs("pCusSPAge")); } }

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• What does explorer use to open a file?

  - by dauphic

  I'm attempting to hook into whatever explorer calls when a file is opened (double-click, context menu open, etc.), however I can't figure out which function that is. Originally, I thought it was ShellExecute, as that does the same thing as far as I can tell, but after hooking into it I learned that it's only used when a new explorer window is opened. Any ideas which function I should be hooking?

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• C++ parent class alignment

  - by aaa

  hello. Is it possible to specify alignment of parent class? for example something like (which does not compiled): template<size_t n> class Vector : public boost::array<double,n> __attribute__ ((aligned(16))) { thanks

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• How to generate a cell click event in Excel 2007 VSTO with VB?

  - by Kevin Boyd

  Well I have browsed through Application events in Excel 2007 however I can't find any event generated on a cell click. I can't use a double click event at the moment due to application constraints. Is there a way I can create a custom click event and attach it to a sheet for generating a cell click event.

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• best way to create UI java apps ?

  - by fwfwfw

  I've come across Netbeans but is there any tools out there that lets you build things event driven ? I'm looking for a feature like being able to drag and drop UI components, and add methods to buttons directly by double clicking it (kinda like visualbasic) and viewing the source.

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• Debug.Assert Appears in Release Mode

  - by Ngu Soon Hui

  We all know that Debug.Assert will not be compiled into the dlls when compiled in release mode. But for some reason Debug.Assert did appear in the release version of a component I wrote. I suspect that I might have mess up my csproject setting. Any idea why Debug.Assert appears in release mode? P/S: I have double checked to make sure that I was really compiling in release mode before asking this question.

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• what is return type of new in c++?

  - by kam

  Hi All, in c, Malloc returns void* but in c++, what new returns? double d = new int; what is it return? Thanks, Arul

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• Money vs. Decimal vs. Float Performance issues (SQL data types for Currency value)?

  - by urz shah

  What data type should be selected in case of Currency value column in SQL server. I have read some where on web Working on customer implementations, we found some interesting performance numbers concerning the money data type. For example, when Analysis Services was set to the currency data type (from double) to match the SQL Server money data type, there was a 13% improvement in processing speed (rows/sec). Is it true??

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• Eazfuscator.NET logging?

  - by kakopappa

  I am using Eazfuscator.NET 3.0.41 to obfuscate a (VS 2010) WPF 4 application. After obfuscating, when I double click the exe file it's throwing an error message like this. "Description: The process was terminated due to an unhandled exception. Exception Info: System.Windows.Markup.XamlParseException" Is there a way I could enable some sort of a logging to check where it's going wrong ? How can I solve this problem? please advice

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• Default Struct Initialization in C++

  - by coryr

  Say I have a struct that looks like this (a POD): struct Foo { int i; double d; }; What are the differences between the following two lines: Foo* f1 = new Foo; Foo* f2 = new Foo();

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• how can put a javascript variable in img tag

  - by ajithperuva

  I need to put a javascript variable as image source.That is my image tag should be in this format here i am adding my script document.getElementById("pricefilter").innerHTML ='' here variablename carries my image path.How can i put this in double quates.Please help to solve this

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• how can i pass a parameter in a thread in ansi c?

  - by moon

  int NM_Generator = 1; //Aray to store thread handles HANDLE Array_Of_Thread_Handles[1]; //variable to hold handle of North pulse HANDLE Handle_Of_NM_Generator = 0; //Create NM_Generator Thread Handle_Of_NM_Generator = CreateThread( NULL, 0, NMGenerator, &dDifference, 0, NULL); if ( Handle_Of_NM_Generator == NULL) ExitProcess(NM_Generator); i want to pass a parameter double value in it how can i do so?

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• How to use substring in vbscript within a xsl page.

  - by dipesh

  I am trying to replace the double quotes in a string with a single quote, got the following code but get error message saying "Object Required strLocation" Sub UpdateAdvancedDecisions(strLocation) Dim d Dim strLLength strLLength = Len(strLocation) - 1 For d = 0 To strLLength alert strLocation strValue = strLocation.Substring(2,3) If strLocation.substring(d,d+1)=" " " Then strLLength = strLLength.substring(0, d) + "'" + strLLength.substring(d + 1,strLLength.length) Next End Sub

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• What happens in memory when calling a function with literal values?

  - by Drise

  Suppose I have an arbitrary function: void someFunc(int, double, char); and I call someFunc(8, 2.4, 'a');, what actually happens? How does 8, 2.4, and 'a' get memory, moved into that memory, and passed into the function? What type of optimizations does the compiler have for situations like these? What if I mix and match parameters, such like someFunc(myIntVar, 2.4, someChar);? What happens if the function is declared as inline?

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• Anyone know about building a custom 'relevance' search of, say, a database?

  - by Daniel

  We need to be able to do a 'sort by relevance' search of a database for our application, but Googling 'sort by relevance custom search' doesn't do much good other than seeing Google Custom Search a 1000 times. It's a Cocoa CoreData database (double alliteration) if that matters. Thanks!

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• How to store data which contains quotes in MySQL

  - by Nitz

  In one of my forms I use the rich text editor from Yahoo!. Now i want to store the data from that textarea in a MySQL database. The user can enter anything in that textarea, e.g. many double or single quotes. How can I store that data? Normally we store by adding that data in one variable and then put that in sql, but the quotes cause problems.

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• How to sort a Map<Key, Value> on the values in Java with google collections ordering function

  - by chris-gr

  How to sort a map(?,B) on the values in Java with google collections ordering function, if B is a class, which has a field of type double, which should be used for ordering.

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• What is the 'd' in the literal 12d called?

  - by Matthew Vines

  I feel like I should know the answer to this, but I don't. What is the type character on a numeric literal called? double myDouble = 12d; float myFloat = 10f; I wanted to find a complete list of them today, but couldn't come up with what to ask Google to search for.

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• Qt - controlling drag behaviour

  - by bullettime

  Suppose I want my draggable widget to move differently than just staying under my cursor while being dragged. For instance, having the widget move only in one axis, or have the widget move double the distance between the cursor and the drag starting point. Which method should I override to define this kind of behaviour?

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• SL How to enable edit mode for whole row in GridView?

  - by sha1dy

  I need to allow users on mouse click in DataGrid to edit whole row? Right now users must double click on cell to enter it in edit mode and I want to make all cells of a selected row to be in edit mode. I was trying to call BeginEdit on Grid's MouseLeftButtonUp but it didn't work.

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• PHP preg_match, need some help

  - by SoLoGHoST

  Can someone please help me with this preg_match if (preg_match('~[^A-Za-z0-9_\./\]~', $filepath)) // Show Error message. I need to match a possible filepath. So I need to check for double slashes, etc. Valid file path strings should look like this only: mydir/aFile.php or mydir/another_dir/anyfile.js So a slash at the beginning of this string should be checked also. Please help. Thanks :)

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• Question in reading gnumake tuto:when does implicit rule apply for make?

  - by Mask

  It says: In general,make searches for an implicit rule for each target[1], and for each double-colon rule[2], that has no commands[3]. This can have two different understanding: 1 or (2 and 3) (1 or 2) and 3 Which does it mean?

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• Get Absolute Position of element within the window in wpf

  - by BrandonS

  I would like to get the absolute position of an element in relation to the window/root element when it is double clicked. The element's relative position within it's parent is all I can seem to get to, and what I'm trying to get to is the point relative to the window. I've seen solutions of how to get a the point of an element on the screen, but not in the window.

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• Runtime casting from String to other datatype

  - by Gengrlin

  Hi I have Map of String values. I want to cast this value at runtime. e.g. Map map = new HashMap(); map.put("key1","101"); map.put("key2","45.40"); Now runtime I know key1 is integer and key2 is double How can I cast this. I tried this: ("101").getClass().cast(Integer). Thanks.

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