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  • Use Enum or #define ?

    - by sub
    I'm building a toy interpreter and I have implemented a token class which holds the token type and value. The token type is usually an integer, but how should I abstract the int's? What would be the better idea: // #defines #define T_NEWLINE 1; #define T_STRING 2; #define T_BLAH 3; /** * Or... */ // enum enum TokenTypes { t_newline, t_string, t_blah };

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  • How can I call a Perl package I define in the same file?

    - by Robert S. Barnes
    I need to define some modules and use them all in the same file. No, I can't change the requirement. I would like to do something like the following: { package FooObj; sub new { ... } sub add_data { ... } } { package BarObj; use FooObj; sub new { ... # BarObj "has a" FooObj my $self = ( myFoo => FooObj->new() ); ... } sub some_method { ... } } my $bar = BarObj->new(); However, this results in the message: Can't locate FooObj.pm in @INC ... BEGIN failed... How do I get this to work?

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  • grails: quering in a composite structure

    - by Asaf David
    hey i have the following domain model: class Location { String name static hasMany = [locations:Location, persons:Person] } class Person { String name } so basically each location can hold a bunch of people + "sub-locations". what is the best way to recursively query for all persons under a location (including it's sub locations, and their sub locations, etc')?

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  • Retriving requried data form Content Providers using single cursor.

    - by HellBoy
    I want to retrieve Name,Number,Company,and Designation so I am retrieving it using 2 cursor as follow Cursor cursor1 = getContentResolver().query(Data.CONTENT_URI, new String[]{Organization.COMPANY, Organization.TITLE}, Data.MIMETYPE + "='" + Organization.CONTENT_ITEM_TYPE + "'", null, null); Cursor cursor2 = getContentResolver().query(Phone.CONTENT_URI, new String[]{Phone.NUMBER, Phone.DISPLAY_NAME}, null, null, null); but How retrieve using one cursor or passing query one time only.

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  • Visual Studio C++ adds "junk" to my programs

    - by sub
    I have looked into the binaries produced by MSVC 2010 from my source code, and saw everything being filled with "junk". I don't know how to explain, but my executables are being added too much unnecessary information, like: Lots of Microsoft default error messages, I don't want them XML schema settings (Why!?) Other things not important for the execution of the main program How can I stop MSVC doing this? Do I have to switch to GCC? In all other programs (written in C++ too, from Word processors to games), this junk simply doesn't exist.

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  • Store #VALUE! #NUM! #REF! in variable.

    - by Ommit
    So a simple version of what I'm trying to do. Say I know there is an error in cell(1,1), furthermore I know it is either #num!, #ref! or #value!, I want to be able to store the respective error message in a variable, so I can print it to a different sheet. This is what I tried and it clearly failed. Sub FindAndPrintErrors dim Store as string If IsError(Range("A1"))) = True Then Store = Range("A1").value 'it breaks here' end if range("B1") = Store end sub I know I can do this but I wonder if there is a better way. Sub FindAndPrintErrors2 dim Store If IsError(Range("A1"))) = True Then temp = Range("A1").value 'it breaks here' if temp = "error 2029" then store = "#num!" ' and so on' end if range("B1") = Store end sub

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  • Why does the Win32-API have so many custom types?

    - by sub
    I'm new to the Win32 API and the many new types begin to confuse me. Some functions take 1-2 ints and 3 UINTS as arguments. Why can't they just use ints? What are UINTS? Then, there are those other types: DWORD LPCWSTR LPBOOL Again, I think the "primitive" C types would be enough - why introduce 100 new types? This one was a pain: WCHAR* I had to iterate through it and push_back every character to an std::string as there wasn't another way to convert it to one. Horrible. Why WCHAR? Why reinvent the wheel? They could have just used char* instead, or?

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  • How to run a module

    - by Jimmy
    I have a module file containing the following functions: def replace(filename): match = re.sub(r'[^\s^\w]risk', 'risk', filename) return match def count_words(newstring): from collections import defaultdict word_dict=defaultdict(int) for line in newstring: words=line.lower().split() for word in words: word_dict[word]+=1 for word in word_dict: if'risk'==word: return word, word_dict[word] when I do this in IDLE: >>> mylist = open('C:\\Users\\ahn_133\\Desktop\\Python Project\\test10.txt').read() >>> newstrings=replace(mylist) ### This works fine. >>> newone=count_words(newstrings) ### This leads to the following error. I get the following error: Traceback (most recent call last): File "<pyshell#134>", line 1, in <module> newPH = replace(newPassage) File "C:\Users\ahn_133\Desktop\Python Project\text_modules.py", line 56, in replace match = re.sub(r'[^\s^\w]risk', 'risk', filename) File "C:\Python27\lib\re.py", line 151, in sub return _compile(pattern, flags).sub(repl, string, count) TypeError: expected string or buffer Is there anyway to run both functions without saving newstrings into a file, opening it using readlines(), and then running count_words function?

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  • Using jQuery, how do you mimic the form serialization for a select with multiple options selected in

    - by CarolinaJay65
    Below is my $.ajax call, how do I put a selects (multiple) selected values in the data section? $.ajax({ type: "post", url: "http://myServer" , dataType: "text", data: { 'service' : 'myService', 'program' : 'myProgram', 'start' : start, 'end' : end , }, success: function(request) { result.innerHTML = request ; } // End success }); // End ajax method EDIT I should have included that I understand how to loop through the selects selected options with this code: $('#userid option').each(function(i) { if (this.selected == true) { but how do I fit that into my data: section?

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  • How to pass Button.Click into a function?

    - by Achilles
    I have a function that adds eventhandlers to control events. Right now I have several overloads that add events to different types of controls: Public Sub AddEventHandler(Button, ButtonEvent) 'adds event handling for Button.Click public Sub AddEventHandler(LinkButton, ButtonEvent)'adds event handling for LinkButton.Click The problem is I want to write a function that is more robust like: Public sub AddEventHandler(Control, EventToHandle, ControlEvent) where EventToHandle is the parameter representing Button.Click or whatever event that Button has associated with it. Any suggestions guys? Thanks!

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  • A way to search form table in MySQL database.

    - by Eugene
    I looked for a way to scan database for a specific table. For example i have: Database: system_ultimate Table: system_settings And let us say, that one doesn't know precise name of the table. He only knows, that it is some how connected to word settings. How could he search for that table name then? I understand, that usually people who develop know, what they develop, but I'm trying to get hang of MVC and I'm trying to stay as far away as possible from direct communication with table using the name. I know, that to see all tables I could use SHOW TABLES;

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  • Perform tasks with delay, without delaying web response (ASP.NET)

    - by Tomas Lycken
    I'm working on a feature that needs to send two text messages with a 30 second delay, and it is crucial that both text messages are sent. Currently, this feature is built with ajax requests, that are sent with a 30 second javascript delay, but since this requires the user to have his browser open and left on the same page for at least 30 seconds, it is not a method I like. Instead, I have tried to solve this with threading. This is what I've done: Public Shared Sub Larma() Dim thread As New System.Threading.Thread(AddressOf Larma_Thread) thread.Start() End Sub Private Shared Sub Larma_Thread() StartaLarm() Thread.Sleep(1000 * 30) StoppaLarm() End Sub A web handler calls Larma(), and StartaLarm() and StoppaLarm() are the methods that send the first and second text messages respectively. However, I only get the first text message delivered - the second is never sent. Am I doing something wrong here? I have no deep understanding of how threading works in ASP.NET, so please let me know how to accomplish this.

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  • Guidelines for creating a programming-language enjoyable to write programs in?

    - by sub
    I'm currently working on the topic of programming-languages and interpreter-design. I have already created several programming languages but couldn't reach my goal so far: Create a programming-language which focuses on giving the programmer a good feeling when writing code in it. It should just be fun and/or interesting and in no case annoying to write something in it. I get this feeling when writing code in Python. I sometimes get the opposite with PHP and in rare cases when having to reinvent some wheel in C++. So I've tried to figure out some syntactical features to make programming in my new language fun, but I just can't find any. Which concrete features, maybe mainly in terms of syntax, do/could make programming in a language fun? Examples: I find it enjoyable to program in Ruby because of it's use of code blocks. It would be nice if you could include exactly one example in your answer Those features do not have to already exist in any language! I'm doing this because I have experienced extreme rises in (my own) productivity when programming in languages I love (because of particular features).

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  • any way to simplify this with a form of dynamic class instantiation?

    - by gnychis
    I have several child classes that extend a parent class, forced to have a uniform constructor. I have a queue which keeps a list of these classes, which must extend MergeHeuristic. The code that I currently have looks like the following: Class<? extends MergeHeuristic> heuristicRequest = _heuristicQueue.pop(); MergeHeuristic heuristic = null; if(heuristicRequest == AdjacentMACs.class) heuristic = new AdjacentMACs(_parent); if(heuristicRequest == SimilarInterfaceNames.class) heuristic = new SimilarInterfaceNames(_parent); if(heuristicRequest == SameMAC.class) heuristic = new SameMAC(_parent); Is there any way to simplify that to dynamically instantiate the class, something along the lines of: heuristic = new heuristicRequest.somethingSpecial(); That would flatten that block of if statements.

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  • C++: String and unions

    - by sub
    I'm having a (design) problem: I'm building an interpreter and I need some storage for variables. There are basically two types of content a variable here can have: string or int. I'm using a simple class for the variables, all variables are then stored in a vector. However, as a variable can hold a number or a string, I don't want C++ to allocate both and consume memory for no reason. That's why I wanted to use unions: union { string StringValue; int IntValue; } However, strings don't work with unions. Is there any workaround so no memory gets eaten for no reason?

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  • C++ setting up "flags"

    - by sub
    Example: enum Flags { A, B, C, D }; class MyClass { std::string data; int foo; // Flags theFlags; (???) } How can I achieve that it is possible to set any number of the "flags" A,B,C and D in the enum above in an instance of MyClass? My goal would be something like this: if ( MyClassInst.IsFlagSet( A ) ) // ... MyClassInst.SetFlag( A ); //... Do I have to use some array or vector? If yes, how? Are enums a good idea in this case?

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  • Getting the username entered by the user after he hits submit on the login form, irrespective of whe

    - by simonr
    Duplicate of http://stackoverflow.com/questions/2803425 Hello, When a user enters his login information and hits submit, irrespective of whether the login credentials entered by the user were correct or not, i want my function to be called. In this function, i need the username entered by the user. I think i cannot use the login op of hook_user because its called only when the user has successfully logged in. So, how can i achieve the above functionality ? Some sample code would be really appreciated. Please help. Thank You.

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  • UIButton At Run Time

    - by rami
    I want to create UIButton At Run Time. I Have main view in which I have Table View when I select Row it Open Sub View with Toolbar and in that I Click on Add Button on tool Bar it opens the another view in which I add My value(like name)now when I press save Button It goes back to the sub View with Toolbar and it create button with name which I save and add it in sub view But problem is when I do it again all things done well But The Button Which created previous is not seen in sub view.It display only button with name Which I save Last.

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  • vb6 listbox list timer

    - by user3138338
    i want to iterate listbox list item with Timer1 . for example, if listbox list item have 'A','B','C' then i want to make run 'A' then run timer1 and after finish 'B' then run timer1 and so on maybe this is easy for someone but it not easy for me because Timer1 is continue looping and it make me some confused. sorry my bad english and anyone could enlight me i really much appreate! Private Sub Command1_Click() For xx = 0 To List3.listcount - 1 Timer1.Enabled = True Next xx End Sub Public Sub Timer1_Timer() some code.... . . End Sub

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  • serializeArray doesn't include submit-button value

    - by guzh
    Hi, I got two submit buttons in a form. One that deletes the post, and one to edit it. I want to display a fancybox with either the edit-form or a message saying that the user deleted the post. It's all decided by which button was pushed, with a "if(isset)"-sentence in edit.php. However I can't figure out how to get the value of the button within the serializeArray.. I tried with .click(function() instead, but that didn't send anything to the fancybox.. $("#form").bind("submit", function() { $.ajax({ type : "POST", cache : false, url : "edit.php", data : $(this).serializeArray(), success: function(data) { $.fancybox(data); } }); return false; }); The form looks like this: <form method='post' action='' id="form"> <input type='submit' value='Edit' name='edit' /> <input type='submit' value='Delete' name='delete' onClick="return slett('<?php echo $oppgave->name; ?>')"/> <input name='oppgaveID' type='hidden' value='<?php echo $oppgave->id; ?>' /> </form> I would really appreciate it if someone could help me! Thanks in advance!

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  • Programmatically adding event handler to array of radio buttons

    - by gSaenz
    Trying to add event handlers to radio buttons that are created on user input, looking at this and this as examples. However I get an error that answerOptions is not an event. Create the radio buttons Private answerOptions(n) As RadioButton ... Private Sub showQuestion(n As Integer) For i = 0 To answerOptions.Length - 1 answerOptions(i) = New RadioButton AddHandler answerOptions, AddressOf Me.Radios_Click With answerOptions(i) ' --------- SET TEXT, LOCATION ETC. End With Me.Controls.Add(answerOptions(i)) Next End Sub Planning on then handling events with Private Sub Radios_Click(sender As Object, e As EventArgs) Handles answerOptions.checked End Sub I want things to happen when the radios are checked. Don't want to use checkboxes as I want to limit one selection at a time.

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  • how to use same password on different userform on specicy worksheet?

    - by user3736237
    How to use same pw on different userform on specicy worksheet? E.g worksheet 1 open userform1 & worksheet 2 open userform2, but both using same password? This is the password ElseIf Pw = "1234" Then ImageNo = "PicGoh" pwno = 2 Or pwno = 3 ' ElseIf Pw = "1111" Then ' ImageNo = "PicGoh" ' pwno = 3 ElseIf Pw = "" Then pwno = 0 Else pwno = 1 End If End Sub Sub Mac3() If pwno = 0 Then Exit Sub ElseIf pwno = 3 Then UserForm2.Show ElseIf pwno = 2 Then UserForm1.Show ElseIf pwno = 1 Then MyVar = MsgBox("Wrong Password! Please Key In Your Password Again") If MyVar = 1 Then MacPw Mac3 End If End If End Sub

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