Programming :: Iterating Through All Listed Keys In An IPC::Cache Object?

Jul 27, 2011

I need to find a way to iterate through all listed keys in an IPC::Cache object. There doesn't seem to be an example of this I can find.

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Programming :: Object To Represent An Object Of Different Types?

Mar 1, 2010

Only ones I can think of seem overly complex, and I'm sure there is a simple solution I am overlooking. I have a class, it has a member who is an object. This object needs to be able to represent an object of different types.


Where "surface" could be several different types, which will be set during execution. Hope this is clear enough. I have tried using templates but am getting "data member cannot be a member template". Either I have incorrect syntax, or am not implementing it right. another solution would have one class containing definitions of all possible shapes, But this would take up extra memory. Other solutions I thought of seem too round-about, and seems there is a simpler solution that I have overlooked.

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Programming :: Groovy Scripting - An Object-oriented Programming Language For The Java Platform ?

Mar 7, 2010

Groovy is an object-oriented programming language for the Java platform. I do not have experience in Java, only perl and shell scripts. Recently I have been asked to maintain a software written in groovy (also to make enhancements). So can I learn groovy without knowing java language. or isit I have to learn java before venturing into groovy.

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Networking :: Iterating Through Eth And Vlan Interfaces In Perl?

Jul 14, 2010

I'm searching for a small perl script to iterate through the configured eth and vlan interfaces to get their assigned ip address and perform some processing.I'm after something like:

@interfaces = (waytogetinterfaces);
foreach (@interfaces){
#perform processing
print "Interface IP is: ", $_->IP;

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Ubuntu :: Control What Buttons/menus Are Listed And Which Icons Are Listed Under Each?

Jul 26, 2010

i just upgraded to ubuntu 10.04 the netbook distro. at the desktop view there is a list of about 10 buttons/menus listed on the left hand side, is there anyway to control what buttons/menus are listed and which icons are listed under each of them? having a netbook i would like to remove and unclutter the desktop view as much as possible but i dont want to remove those apps i still want to be able to open those apps if i want to even if by removing those icons and menus/buttons makes it a pain.

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Ubuntu Multimedia :: Error - Object Reference Not Sent To An Instance Of An Object

Mar 6, 2010

I've been using the PPA version of banshee, and I got this error - just wondering if anyone else has it too! I'm able to play a song, but when the song finishes and the next one starts I get this error: Banshee Encountered a Fatal Error Object reference not sent to an instance of an object Error details:

An unhandled exception was thrown: Object reference not set to an instance of an object
at Hyena.Gui.Theming.GtkTheme.GetCairoTextMidColor (Gtk.Widget) <0x00017>
at Banshee.NotificationArea.NotificationAreaService.get_TextLightColor () <0x0002f>
at Banshee.NotificationArea.NotificationAreaService.MarkupFormat (string,string[]) <0x00043>
at Banshee.NotificationArea.NotificationAreaService.GetByFrom (string,string,string,string) <0x000d7>


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Programming :: Different Processes Using Same File Object

Sep 29, 2009

I have 2 completely different processes A and B (they do not have any relationship) suppose A opens a file with file descriptor 4 and B opens another file with file descriptor 5

Can process A use the fd 5 (i.e using the file object of processs B) by any means..if suppose i let the fd 4 of process A to point to the file object of process B(fd 5) will it work? is it safe?

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Programming :: How To View An Object File

Aug 14, 2009

Is there any way may be some tools to view and explore contents of .obj files (in a formatted or unformatted way) or an executable. Can we do it using gcc?

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Programming :: Display Every Line That Does Not Contain One Of Listed Words / Fix It?

Feb 17, 2010

I am trying to eliminate false lsof file records but it does not work code...

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Programming :: Python: 'Instancemethod' Object Is Unsubscriptable?

Jan 18, 2011

im having some trouble printing a buffered item in python. My code is as follows:

Code: Class buffer:
def __init__(self, max): = [0 for i in range(max)]


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Programming :: Cmake - Unable To Add Object To Static Lib

Nov 3, 2010

I'm creating a static lib via cmake,and when I view the .a binary file with less/more/cat I see functions from my time_tools.c, but not my other_api.c The directories structure is:




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Programming :: Passing An Object To A Running Thread?

Jan 14, 2011

This is a client server issue where the server creates a new thread for listening to a new client, now when the thread starts execution and during its execution the server needs to pass it an object of some X class, how's that to be done?

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Programming :: Saving Serializable Object Within It's Own Class

May 12, 2011

I found out how to save an object using Serializable in JAVA, the standard however how can I set up my MainVariableList to have a function/method saveobject so it saves the object within it's own class, the below code compiles, however when I run it reports an error on startup but works, basically what do I use for the red line, how do I tell it what object is passed to the class?

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Programming :: Code - Blocks - Shared Object - Debugger ?

Jan 18, 2010

I have created an application that has a executable program that loads in a shared object

the shared object loads in another shared object

both of these shared object I have created

For debugging I have been printf'in data to determine what is going on

I now have some odd memory issue, and need a bit more control over debugging...

I have one workspace set up and under my exectuable(will call maintest from now on) I have two items in my link libraries under project build options being soA and soB (so A is the shared object that maintest uses, soB is the SO that soA uses) I also have linker options pthread and ldl

At the beginning of my maintest I do my dlsym and load in each function that I will be using

I always run my program using maintest, because when I have one of the SO as the startup project(turns bold) and try to run it gives me "You must select a host application to run a library"

I tried to set up this host library, i Go to Menu->Project->SetProgramArguments and change the Host Application to the debug version of my maintest

I then hit OK and try to run again but I get the same error: "You must select a host application to run a library"

If I get this part working - which I need help doing, is tehre other steps that need to be taken to debug the so's? or will this make it so when i hit f8 it will run.

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Programming :: Compile Shared Object Files Using Valac ?

Oct 20, 2010

What flags do you have to pass to valac to compile code into a shared library (file extension .so)?

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Programming :: How Can An Object File Be Executed Without Startup And Housekeeping

Sep 22, 2009

I came from Windows and I am want to learn how C++ programs are compiled and executed in Linux. I read in "Thinking in C++" that the linker adds (by default) a startup module to the object files that an application should be made of. Now when I use g++, I can create an single object module out of a single source code file then execute it in the terminal like this:


How can this object file be executed while it doesn't contain the startup module? In Windows, object files usually get combined into an executable file (somthing.exe) then that executable can be executed, is this not necessary in Linux? does the OS perform required actions before it executes that object file?

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Programming :: Paint Pixels In C / C++ Without Going In To Object Oriented Prog?

Aug 24, 2009

I want to findout how to paint a line in C without using a line function or OOP. I want to control it by pixels.

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Programming :: Produce COFF Format Object File Using GCC Or AS?

May 10, 2010

I am trying to have GNU assembler produce object file COFF format? I did not find relevant information from GNU assembler's manual.

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Programming :: Pass By Reference A Parameter Without Assigning A New Object?

Dec 28, 2010

How can I pass by reference, a parameter, without assigning a new object? In my first example, var = "changed" creates a new local object. In the second, mylist.append will affect the reference target. How to i achieve the same effect with example 1?

var = "unchanged"
def print_string( var ):


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Programming :: Error With Compiling Program 'can Not Be Used When Making Shared Object'

Oct 14, 2010

I've got an error with compiling a program: relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC /usr/lib/python2.5/config/libpython2.5.a: could not read symbols: Bad value collect2: ld a retourn 1 code dtat d'excution make[2]: *** [bindings/] Erreur 1.

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Programming :: Changing Shared Object File Default Place

Mar 27, 2010

I wanted to know how can I change the default place of shared object files of a program in a system. let me explain it better for you : I have an embedded computer with Linux OS that its file system is read only and I can not add any file to /usr /lib and ..... and I can just mount a SD memory card to it and copy all of my programs to it and run them from there as you understand I have two choices to choose, first make one big binary file for each program that I am doing it now and it is not a suitable solution and the second is finding the way to change default place of shared object file of my program.

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Programming :: Execute A Function Which Is In A Object File Throgh Libbfd?

Sep 10, 2010

I hava a source file add.c

int add(int a,int b){
return a+b;

then i compile it, gcc -c add.c now we get a object file add.o, I want to execute the function add(int a,int b)(the functinon in the object file add.o) how can i use libbfd to execute it?

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Programming :: Java - Object Oriented - How It Works - Set The Getter And Setter ?

Feb 28, 2011

I have a peace of code the does not work:

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Programming :: Php Didn't Reload - Cache?

Jul 27, 2010

I make personal site with php on wamp. When uploaded it to my debian box I make some comments in index.php like

echo realpath('inc/inc.php');

upload the changed php file, but when try to reload the site same errors stay there. There is some cache that I have to clear but I don't know where it is. In wamp I clear wamp mp* directory What cache I have to clear? Edit: It is not my browser. I use firefox and clear everything with several times ctrl+shift+del I even delete index.php but the same errors stay at the page:

Warning: include(inc/inc.php) [function.include]: failed to open stream: No such file or directory in /var/www/site/index.php on line 3 Warning: include() [function.include]: Failed opening 'inc/inc.php' for inclusion (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/site/index.php on line 3

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Debian Programming :: How To Find Total Size Of A List Object In Byte

Jan 11, 2013

Assuming there are two list objects a1, a2.

a1 = ['
a2 =['hi

len() built-in function gives total number of elements in the list object.
len(a1) gives 1. len(a2) gives 1 also.

Code: Select all$ python
Python 2.7.3 (default, SepĀ  9 2012, 17:41:34)
[GCC 4.7.1] on linux2


I thought there exists a built-in function that gives total size of a list object in byte. So using the function produces 1 for a1, 3 for a2. I haven't found such function or module yet.

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Programming :: Assigning Structure Object's Variable Outside Main() Gives Parse Error

Sep 2, 2010

Kindly take a look at the code below :

#include <stdio.h>
struct test
int i;
int j;


why i am getting this error. I know the error is occuring because i have assigned values to obj.i and obj.j outside main(). But i want to know why do that result in an error. From my part i have created an object 'obj' of stucture 'test' and assigned values to its variables.

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Programming :: Build An Object Code For ARM At91rm9200 Board From A Makefile Using A Crosscompiler?

Apr 17, 2011

I want to build an object code for ARM at91rm9200 board from a Makefile using a crosscompiler.

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Fedora :: Error: Caching Enabled But No Local Cache Of //var/cache/yum/updates-newkey

Sep 24, 2009

I don't understand this error nor do I know how to solve the issue that is causing the error. Anyone care to comment?


Error: Caching enabled but no local cache of //var/cache/yum/updates-newkey/filelists.sqlite.bz2 from updates-newkey

I know JohnVV. "Install a supported version of Fedora, like Fedora 11". This is on a box that has all 11 releases of Fedora installed. It's a toy and I like to play around with it.

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Software :: Redirecting APT Cache - Can Redirect Cache Of Apt To A Specified Folder Either On Command Line Or Via A Config Setting?

Jan 5, 2011

I was laughing about klackenfus's post with the ancient RH install, and then work has me dig up an old server that has been out of use for some time. It has some proprietary binaries installed that intentionally tries to hide files to prevent copying (and we are no longer paying for support or have install binaries), so a clean install is not preferable.

Basically it has been out of commission for so long, that the apt-get upgrade DL is larger than the /var partition (apt caches to /var/cache/apt/archives).

I can upgrade the bigger packages manually until I get under the threshold, but then I learn nothing new. So I'm curious if I can redirect the cache of apt to a specified folder either on the command line or via a config setting?

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Server :: Squid Cache System - Make It Cache All Files Like .exe .mp3 .avi

Mar 6, 2011

I installed squid cache on my ubuntu server 10.10 and it is work fine but i want to know how to make it cache all files like .exe .mp3 .avi ....etc. and the other thing i want to know is how to make my client take the files from the cache in the full speed. since am using mikrotik system to use pppoe for clients and i match it with my ubuntu squid

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