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• TextMate can show definition of a function easily?

  - by Jian Lin

  I am using TextMate on a Ruby on Rails project and wonder if you can put the mouse on link_to, and then press a key and it will show the definition of link_to, or does this for any other helper functions? Or, click open a box and type in a function name and it will show you the definition?

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• patter matching for custom read function

  - by altair211

  Hi, I am writing a custom read function for one of the data types in my module. For eg, when I do read "(1 + 1)" :: Data, I want it to return Plus 1 1. My data declaration is data Data = Plus Int Int. Thanks

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• Built in python hash() function

  - by sm1

  Windows XP, Python 2.5: hash('http://stackoverflow.com') Result: 1934711907 Google App Engine (http://shell.appspot.com/): hash('http://stackoverflow.com') Result: -5768830964305142685 Why is that? How can I have a hash function which will give me same results across different platforms (Windows, Linux, Mac)?

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• incompatible declaration in built in function malloc and incompatible types in assignment error in

  - by mekasperasky

  char char* c[30]; c = (char*) malloc(30*sizeof(char) ); How does this give an incompatible declaration in built in function warning and and incompatible types in assignment error in the line where i have declared malloc . According to the syntax of malloc , i shouldnt have any error

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• Inverse function of FormatDateTime

  - by Salvador

  i am looking an funtion to reverse any string (YYYYMDD,YY/MM/DD,YYMMDD,...) created by the function FormatDateTime to datetime. example i have a string-date in format YYYYMMDDcreated by FormatDateTime mydatestr:=FormatDateTime('YYYYMMDD',Mydate); now how i can convert mydatestr to DateTime again?

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• How can I pass a C++ member function to a C API as a parameter

  - by michael

  Hi, In my C++ program, I need to call this c API: GConn* gnet_conn_new (const gchar *hostname, gint port, GConnFunc func); where GConnFunc is defined as: void (*GConnFunc) (GConn *conn); My question is if I have a C++ class and have a member function like Class A { public: A(); void my_func (GConn* conn); } In my A::A() Constructor, how can I pass this-myfunc to gnet_conn_new as the GConnFunc parameter? Thank you.

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• document.evalute function giving exception

  - by R_Dhorawat

  i have a code like res = doc.evalute(xpathExpr,doc,function(prefix) { return namespaces[prefix] || null;}, XPathResult.ANY_TYPE,null ); here doc is DOM document node when i run for loop like this for(i in doc)alert(i); it gives evalute method but when i tried to use this method on dom node it giving me error like xpathResult not defined... i'm working in android browser thanks in advance....

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• Calling function with 1 paremeter @ selector.

  - by Mr. McPepperNuts

  I want to call this guy -(void)addFavorite:(NSString *)favoriteToAdd at, @selector here action:@selector([addFavorite favoriteToAdd:@"string"])]; But I keep getting syntax error no matter which way I write it. Can someone point out the appropriate way to call this function? When it had no parameter and was "addFavorite," it worked fine.

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• C++ greatest integer function

  - by Thomas

  I want to implement greatest integer function. int x = 5/3; My question is with greater numbers could there be a loss of precision as 5/3 would produce a double?

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• How to execute Javascript function in C++

  - by owais masood

  Please tell me, how to include a javascript header file or javascript function in C++ code. The C++ code is written in Linux(UBUNTU)? Although i need to perform the above action only, but let me tell u my purpose of doing it, as i am intending to implement CTI (Computer Telephony Integration) operation. (Help will be appreciated) Thanks a lot in advance

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• computed column with aggregate function

  - by Kindson

  I have seven columns in my table: hours, weight, status, total_hours, total_weight and percentage total_weight = weight where status = 'X' total_hours = hours where status = 'X' percentage = total_hours/sum(weight) sum(weight) is an aggregate function I would like to specify formula to generate the three computed columns. What do i do?

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• C++ Pointer to a function which takes an instance of a templated class as argument

  - by Nils

  I have trouble compiling a class, which has function pointers as member variables. The pointers are to functions which take an instance of a class as argument. Like template<class T, int N> double (*f)(Vector<T,N> v); I get "error: data member 'f' cannot be a member template" Compiler is gcc 4.2.

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• Calling a function automatically in C#.Net

  - by mouthpiec

  Hi, I would like to call a function automatically lets say every 2 secs. Is this possible with .NET, and if so can you please paste some code? This will be used in Windows Mobile 6 SDK thanks

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• Malloc function in C++

  - by Mohit Deshpande

  I am transitioning to C++ from C. In C++, is there any use for the malloc function? Or can I just declare it with the "new" keyword. For example: class Node { ... } ... Node *node1 = malloc(sizeof(Node)); //malloc Node *node2 = new Node; //new Which one should I use?

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• What's the usage if I provide an implementation for a pure virtual function in C++

  - by skydoor

  I know that it's OK for a pure virtual function to have an implementation. However, why it is like this? Is there conflict for the two concepts? What's the usage? Can any one offer any example?

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• Visual Studio 2010 'Assign to local variable' function?

  - by Frank Meulenaar

  I'm in love with the function in Eclipse "assign to field". Basically, when I have getString(); and I type ctrl-2, Eclipse converts this into String getString = getString(); Is this possible in VS 2010?

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• C++: how to declare template array as function parameter

  - by ~buratinas

  Very similar to this post How can I declare template array as a parameter in templated function? Something like this code: template <unsigned i> void my_func (char (&a)[i]); //yes, I do need that reference

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• SlideUp Function on Jquery

  - by Silent

  i have a slide up function and a slide down on my script, everything works. The problem is that the DIVs are collapse and not hidden how would i be able to hide the divs on page start up. i tried to set the DIV to hidden but no luck with that.

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• Pass arguments to a delayed function with Haxe

  - by Johnny Oin

  Hi everyone, do you know if there is an easy way to pass some arguments to a function called via haxe.Timer.delay(func, delay); By "easy" I mean without creating any custom timer. Thanks.

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• PHP Array in MySQL IN() function?

  - by Trez

  Is it possible to assign php array in MySQL IN() function? for example, $numbers = array('8001254656','8886953265','88864357445','80021536245'); $sql = mysql_query("SELECT * FROM `number_table` WHERE `number` IN ($numbers)"); Any Ideas? Thanks,

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• Can I put a function inside a struct?

  - by drigoSkalWalker

  Maybe I use inline functions... There are any way to archieve it, without using function pointers? Thanks in advance.

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• Ajax function not called when included

  - by Sev

  I have an ajax function that is not run when the ajax script is included in my HTML page like so: <script type='text/javascript' src='ajax.js'></script> However, if I place the exact same script in the head portion of the HTML page, then it does run. Why does this occur, and how can I fix it?

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• what's wrong with this function?

  - by Joann

  function get_ibo_id() { if($registerquery = $this->conn->query("SELECT ibo_id FROM fasttrack WHERE count < 8 && flag = 1 ")){ $this->increase_count(); while ($row = $registerquery->fetch_assoc()) { return $row[ibo_id]; } } else return "No id"; } it always enters the if block even if the condition is not satisfied... going crazy

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• Facebook content locker function share

  - by Vicent D

  I made a facebook content locker(PHP + HTML + JAVA) for my website, so to access the site user must press the 'facebook share "in the middle of the screen.After pressing this button, it opens facebook pop-up and user can share or NOT my link because locker disappear in 30 seconds since clicked on this button(so I put it). Is there any possibility, any function that content locker disappear only after the user has actually given share in facebook pop-up window,I mean after my site address appears on facebook ? Thanks a lot

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• Create a new instance in a static function of an abstract class

  - by arno

  abstract class db_table { static function get_all_rows() { ... while(...) { $rows[] = new self(); ... } return $rows; } } class user extends db_table { } $rows = user::get_all_rows(); I want to create instances of a class from a static method defined in the abstract parent class but PHP tells me "Fatal error: Cannot instantiate abstract class ..." How should I implement it correctly?

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