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• Where does code within Script tags go in the resulting AS class?

  - by Hanno Fietz

  I was wondering what happens to the code contained in an <mx:Script> tag. If I define a function tehre, it just becomes a member function of the generated class. But I noticed that it seems OK for the compiler if I just write some (static) method calls there (specifically, I call Font.registerFont()). I feel kind of guilty for doing this, because I have no idea what's really happening and when the code gets executed.

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• Perl, "closure" using Hash

  - by Mike

  I would like to have a subroutine as a member of a hash which is able to have access to other hash members. For example sub setup { %a = ( txt => "hello world", print_hello => sub { print ${txt}; }) return %a } my %obj = setup(); $obj{print_hello}; Ideally this would output "hello world"

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• compiling Boost linked libraries (Ubuntu)

  - by Adam Greenhall

  I installed Boost via sudo apt-get install libboost-all-dev on the most recent version of Ubuntu. Now I want to compile a project that uses the Boost.Serialization library, which needs to be linked. I've tried many variants of the following, without success: gcc -I /usr/lib code.cpp -o compiled /usr/lib/libboost_serialization.a and gcc -I /usr/lib code.cpp -o compiled -l libboost_serialization The error message is: error: ‘split_member’ is not a member of ‘boost::serialization ` What am I missing?

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• Blocking syscalls with no other load in system (linux kernel)

  - by osgx

  Hello If there is only 1 running application in the system (and default 100 sleeping process), and it do a blocking syscall (I'm interested in blocking recv or blocking read). Will linux kernel delete this application from task_t *current pointer?

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• Looking for a PHP Instant Messaging Solution

  - by ake

  Anybody know of any Instant messaging solution that can be deployed on LAMP? Did some Google search and most of the solution i got were not working as advertised :( Would appreciate a pointer to any tried and tested solution! Merci!

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• Including a C header which declares a variable called "new"?

  - by StackedCrooked

  I'm trying to use the OpenCA library in a C++ application. However, when including the file pki_x509_data_st.h the following code fragment is encountered: typedef struct pki_x509_callbacks_st { /* ---------------- Memory Management -------------------- */ void * (*new) (void ); void (*free) (void *x ); void * (*dup) (void *x ); This won't compile because of the "new" pointer declaration. How can I make it work?

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• Looking for a simple HTML text editor for Windows

  - by Joe Zack

  I'm looking for a simple free/cheap Windows text editor for a family member learning HTML. Ideally it would be as simple and non-intimidating as possible. Basically Notepad with code highlighting. Any help would be much appreciated!

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• stl string return by const reference vs. const char*

  - by user342673

  i have a STL string member variable in my class, class A { public: const char* getData1() const { return data.c_str()); const string& getData2() const { return _data; } private: string _data; }; getData1() vs. getData2(), which one is better?

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• detect mouse events in mac os X at system level

  - by AP

  Hello, I would like to keep track of all mouse events at system level (not only in my application). I've quickly googled this but found no real interesting pointer. Do you know how to achieve this? Thanks in adavance for your help :) Regards,

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• Making a char function parameter const?

  - by Helper Method

  Consider this function declaration: int IndexOf(const char *, char); where char * is a string and char the character to find within the string (returns -1 if the char is not found, otherwise its position). Does it make sense to make the char also const? I always try to use const on pointer parameters but when something is called by value, I normally leave the const away. What are your thoughts?

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• object reference set in java

  - by landon9720

  I need to create a Set of objects. The concern is I do not want to base the hashing or the equality on the objects' hashCode and equals implementation. Instead, I want the hash code and equality to be based only on each object's reference identity (i.e.: the value of the reference pointer). I'm not sure how to do this in Java. The reasoning behind this is my objects do not reliably implement equals or hashCode, and in this case reference identity is good enough.

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• .Net: how can I have a combobox with multitple fields of its data source as Displaymember?

  - by odiseh

  hi How can I have a combobox with multiple fields of its data source as its display member without adding additional columns to its data source? I mean I wanna to have a combobox with displaymember like "ID" + "-" "Name" . 1 - Black 2 - White 3 - Red I DO NOT want to add additional column to its data source. Thank you

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• Can a trait state if a C++ class has a default constructor?

  - by Vicente Botet Escriba

  Traits classes can be defined to check if a C++ class has a member variable, function or a type (see here). Curiously, the ConceptTraits do not include traits to check if a C++ class defines a default constructor or given constructor? Can traits be used to check the constructor presence? If yes, how? If not, why it is not possible?

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• Why remote git server should have --bare

  - by dorelal

  I am reading these two articles. However I still do not get --bare option. If the server has no working directory and if a new member of the team clones the project then that person will not get any content. Any further clarification will help on why --bare is needed.

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• What is the equivalent of Java's final in C#?

  - by Nosrama

  What is the equivalent of Java's final in C#? EDIT: Sorry, I should have been clearer. I meant what is the equivalent when applied to a member variable - so it must be assigned once and only once.

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• Eclipse: how to show the information about a function?

  - by user248959

  Hi, when i go with the mouse pointer on the function it doesn't show the location, class... i have this problem in one of my projects. All is executed ok so the functions are there :). Build id: 20090920-1017 Any idea? Javi

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• Difference between [object variable] and object.variable in Obj-C?

  - by John Smith

  I was working on a program today and hit this strange bug. I had a UIButton with an action assigned. The action was something like: -(void) someaction:(id) e { if ([e tag]==SOMETAG) { //dostuff } } What confuses me is that when I first wrote it, the if line was if (e.tag==SOMETAG) XCode refused to compile it, saying error: request for member 'tag' in 'e', which is of non-class type 'objc_object*' but I thought the two were equivalent. So under what circumstances are they not the same?

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• How to calculate the cycles that change one permutation into another?

  - by fortran

  Hi, I'm looking for an algorithm that given two permutations of a sequence (e.g. [2, 3, 1, 4] and [4, 1, 3, 2]) calculates the cycles that are needed to convert the first into the second (for the example, [[0, 3], [1, 2]]). The link from mathworld says that Mathematica's ToCycle function does that, but sadly I don't have any Mathematica license at hand... I'd gladly receive any pointer to an implementation of the algorithm in any FOSS language or mathematics package. Thanks!

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• to count specific things within a c++ code

  - by ace

  i know this connects to my original question but i put it here so it is seen by people afresh. after passing each line of the code into a string, how can i count the following things: --the number of standalone functions and member functions per class --the number of lines per function?

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• How to force a gtk tooltip to be shown?

  - by markuz

  I have an application and I want to show a tooltip every time a user set the focus on a entry widget. Do you know a way to force a gtk Tooltip to be shown?, because right now it only shows when the user puts the mouse pointer over the entry, but the application in production will have no mouse at all.

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• c++ memcpy return value

  - by knittl

  according to http://www.cplusplus.com/reference/clibrary/cstring/memcpy/ c++'s memcpy takes three parameters: destination, source and size/bytes. it also returns a pointer. why is that so? aren't the parameters enough to input and copy data. or am i misunderstanding something? the examples don't use the return value

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• how to pass parameters to sql query

  - by Shiny

  Im using Sql compact server.I created table with varchar datas.But i select a particular column member to be an identity.im programming in c#. I want pass the query. how can i achieve this? Im new to this sql compact,

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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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• What are the scenarios in which case a new class will be loaded?

  - by GK

  That is when you have any jar file attached to you your class path. then as far as i know any class from the jar is loaded for the first time when, when you create any object of that type. or If you are accessing any static member or method of that class. or when you load that by using Class.forName() method. So are there any other ways of loading a class for the first time?

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• Object allocation in C++

  - by Poiuyt

  char *myfunc() { char *temp = "string"; return temp; } In this piece of code, where does the allocation of the object pointed to by temp happen and what would be its scope? Is this function a valid way to return a char* pointer?

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