I have problem installing gccxml something called lvalue. So what is lvalue and how can I fix the problem.
The error massage is as follows
[Code]....
and the gcc version is:gcc version 4.3.0 20080428 (Red Hat 4.3.0-8)
I feel there's a bit of a misunderstanding going on between C++ and me...My problem is that I have a deque of pointers to a class, and create objects then add them to the deque in a for loop. However, the destructor is called on the object as soon as the loop quits.
Code:
This prints:
Code:
Now, if I change the deque from deque<Test*> to deque<Test> then it works fine - I get:
Code:
However, I can't do this with my actual code, because I am creating a deque of pointers to an abstract class, so it won't let me instantiate the class. (This is all so that I can take advantage of polymorphism, and call functions on a set of similar objects without worrying what type of object I'm dealing with).
So, I suppose my question is: what is the correct way to create that deque of pointers to the abstract class? I don't seem to be barking up the right tree currently.
I got some sourcecode written with c++. I found it did not supported by the newer version of gcc. So I wanted to install an older version. But it always comes up with the question like "./read-rtl.c:653: error: lvalue required as increment operand", what should I do now?
View 6 Replies View Relatedit's been a long time since I did coding in C, but thought to pick up a very old project again, just to show off what I have been working on ten years ago.I deducted my problem as follows:
Code:
#include <stdio.h>
#include <stdlib.h>
#define bit1 1
#define bit2 2
[Code]...
Why is it saying that bar->act is not a valid lvalue while both bar->act and the bit are cast to (long long)?
I am using bootchart to investigate the slow booting of ubuntu 10.04 and I found that fsck process is called every time in the booting for around 5 seconds even the screen does not show any hard disk checking, is that normal ?
View 5 Replies View RelatedI'm setting up an Ubuntu 10.04 machine with the sole purpose being to function as a vpn server.I got openvpn set up but the startup script doesn't appear to be called on bootup even though it is does appear in the rcX.d directories and the openvpn script is in /etc/init.d and is executable and belongs to root:root.I tried running "update-rc.d -f openvpn remove" and "update-rc.d openvpn defaults" on the offchance something went wrong when it was first added to the startup links.
View 2 Replies View RelatedI'm having alot of trouble trying to remove linux ubuntu from my computer, so that i will only have windows vista. What's the easiest way, to totally remove anything on my harddisk with ubuntu, grub or whatever it's called?
View 1 Replies View Relateddepend on my sound card (which is Realtek, I think), but which file/folder in /dev is my speakers? In fact, a page with the meaning of all the /dev folders would be nice if that exists, but if not, just the speakers.
View 3 Replies View RelatedI'm wondering about this kind of GUI Interfaces like Slackware setup program
What is called ? Also, Can it be used with Python?
I want to copy a file from an old directory to a new directory and ideally I would like that the 'mv' command itself could create the directory for me in one step...That is to say that the directory would not exist until 'mv' has been called as in:Code:mv olddirectory/file.dat newdirectory/file.datso mv would create the directory 'newdirectory' in the above call....I am not sure if this is possible however, that is to say I think it may be necessary that the directory 'newdirectory' already exists before I make the above call to mv, as when I make try the above call when 'newdirectory' doesn't exist I get the following error:Quote:mv: cannot move `test1/4215/4215-001R.fit' to `test2/test.fit': No such file or directoryso to sum up, my question is:is there some paramater for 'mv' that I can change so that it will create the new directory as well as copy the file and if not, are there other commands that might do this?
View 3 Replies View RelatedProfile is getting called twice for every login change. Interestingly when i use SU, it is invoked once only. how to set profile to be called only once.
View 3 Replies View RelatedMy firewall keeps blocking something called CPQ-Wbem. There have been about 10 instances of this.
A machine on the network is advertising it runs, or looks for machines running, Compaq Insight Manager on TCP/2301. If the machine isn't yours or you haven't enabled Compaq's web-based remote management then silently drop it.
Now as far as i know i do not have a network, just a dsl connection. I also do not own a Compaq computer. So if someone who has some knowledge of this could you explain to me how a " network is advertising it runs, or looks for machines running, Compaq Insight Manager on TCP/2301 " . This would seem to me to be a local network thing not a www thing ?
I found a great application called Freecorder. Is there a Linux equivalent? [URL]..
View 6 Replies View RelatedEvery Time I Try Too Boot Ubuntu, Instead Of Starting Up It Takes Me To This Menu Type Thing And It Says To Press Tab To See The Command List Or Something Like That. And I Dont Know What Commands To Use.
View 9 Replies View RelatedI went to update my software and I saw the system wants to remove three programs. I googled them and they seem important but I can't update without removing them so I'm stuck. I've included a screen shot of the items the system wants to remove.
Also for the past month I haven't been able to update something called seahorse, the system says it's a broken package but I don't know how to fix it. Is this an essential program or can I un-install it?I want to upgrade to 10.10 but I am reading how all updates must be done before and these issues are holding me back.
I was looking around the files in /etc/ to see what they were and what they said, then I noticed there was two files called passwd, which confused me a lot for a second then I noticed one of them was actually passwd-.I compared them and they only differed by one line:
< games:36:35:added by portage for gemrb:/usr/games:/bin/bash, which was in passwd but not passwd-.Should these files both exist? If yes, why, what does having both do? If no, then its safe to say I can just delete passwd-
1. What is it called when you move a PDF window while it is loading and the window manager does not keep up with the image, (it gets all blurry when the window is moved?)Why does this happen?
2. Why is it that when a browser window is clicked to load a new address it won't always go to it. It has to be clicked again.
3 Why is it that sometimes IE is the only browser that will work on XP. FireFox and Opera will not load a page but IE will.
4 Why is it that Firefox on Linux sometimes everything inside the window is slow to appear. It has to be closed to fix it. When the contents does appear it is all at once.
5.Why is printing different things on Linux a problem. I have a lot of inconsistency with trying to print things from Evince. Some docs print and some won't. Copying and pasting is also a problem for Evince.Why?
6. Is there a way to have Linux Shut down after computer activity has stopped and not just with a timer. Lets say I'm trying to download something and I want it to turn off after it has finished with the down load.
7. Why are some Web pages biased towards Windows. I notice that some java scripts will only run right on Windows machines with IE. A lot of on-line forms are like this.
8. Can (MOVIES, PICTURES AND MUSIC) torrents be downloaded on Linux without risk?
9. It seams that Linux browsers do not keep previous web pages in memory so if you want to go back Linux always has to reload them from the server. Why is this?
10. Why is it that browsers sometimes won't indicate that the page has finished loading, "ever".
11. Why does Linux turn on the number-lock when loading its self?
12. Why can't the brightness be adjusted in Totem? There is a menu to change it but it does not work.
I want to enable a function which is called clone mac...see in the picture. while, some systems don't support such a function... such as centos, the picture was taken in ubuntu 11.04... so, if i want to enable the function in centos or some other distributions which doesn't support this originally, what should i do? is upgrading the network manager functional?
View 4 Replies View RelatedI made the following script:
Code:
#!/bin/bash
logErrors(){exec 2>/tmp/errorlogfifowhile truedocat /tmp/errorlogfifo |echo $(date "+[%Y-%m-%d %H:%m:%S]") Error: >/var/log/error.logdone}
logErrors
ls inexistentFile
exit 0
If I execute the script I see the formated error message in /var/log/error.log, as to be expected. After the script execution, I hoped "logErrors" was not executing anymore, but when, in another terminal, I call "echo something > /tmp/errorlogfifo", I still see the formated error message "something" in "/var/log/error.log". How can I finalize "logErrors" before the script ends? Or, maybe someone knows a better way to format and log the erros in a script.
I forgot to say that the file "/tmp/errorlogfifo" is a named pipe created by the command "mkfifo /tmp/errorlogfifo".
I have two shell scripts:
sh1.sh
echo "First script"
echo "Now calling second one"
sh2.sh
sh2.sh
echo "Second script"
In this shell script, I want to print out which shell script called this. In this case, sh1.sh called sh2.sh. So, I want to print out "sh1.sh".How to achieve?
Exactly what sequence of files are called as in the .my_profile,.profile,.vimrc,.vim. These are few files that I are there on the server. I want to know which file is called first and what sequence. Also can you point me to some links that tell exactly what are these files for.
View 1 Replies View RelatedI always use professional services to secure my servers. Everything was fine for years but a week ago my server got hacked.I don't know how the hacker got my username/password - it was not something like admin, password.9 months ago my PC was infected with some virus which connected to the FTP server by using password which was saved in CuteFTP and infected all index files with some javascript. Then I changed the user/FTP password and didn't save it anymore in Cute FTP. Of course, I checked all the folders and re-uploaded all infected files. Is it possible that this virus uploaded some hidden file which was able to get the new password for this account?
The server was hacked from so called Tor IP address. I am tiref of worrying about server security and now have an idea to get a static IP address from my ISP and to allow logins only from this IP address. What do you think about it? This idea looks good for me but are there any risks to lose access to the server. Can ISP provider change the static IP address for some reason?
I've made a bash script to do scp a file from another server and tested it successfully by executing it manually. However, when I scheduled it by cron, I received a mail from root saying permission denied.
The script is at:
It's supposed to secure copy a file from a remote host to:
The script's content is (No need to supply password as I've done the ssh-keygen thing):
Code:
From what I can make out of the mail, it appears that it has problem saving it to the /home/backup directory.
I was reading some old posts here and was wondering if anyone could give me or show me where I can download a file called cleanappledouble.pl Apparently it is included when netatalk is installed and is located in /usr/local/atalk/bin for most people. Here is the thread where I was looking at regarding the file.
http://www.linuxquestions.org/questi...eaning-111387/
I'm looking for a screen saver called "Flurry" for Linux.
View 2 Replies View RelatedI'm trying to find that line in the init files, but I don't see anything blatantly referring to login yet.
View 4 Replies View RelatedChanged the partition sizes = all ok
boot to F15 = ok
#grub-install /dev/sda = seemed ok but XP not shown
[code]....
I've got a script in ubuntu 9.04 in init.d that I've set to run on start on with update-rc.d using update-rc.d init_test defaults 99. All of the symlinks are there and the permissions appear to be correct
-rwxr-xr-x 1 root root 642 2010-10-28 16:44 init_test
mike@xxxxxxxxxx:~$ find /etc -name S99* | grep init_test
find: /etc/rc5.d/S99init_test
[code]....
The script runs through source and ./ without issue and behaves correctly. Here is the source of the script:
#!/bin/bash
### BEGIN INIT INFO
# Provides: init test script
[code]....
When the machine starts, I don't see "script called" or "start called" in the test.log at all.
There is an application for Windows called CutePDF that is a printer driver that converts any document, website, etc. into PDF when I print to it. Is there a universal application like this for Ubuntu?
View 2 Replies View Relatedi am trying to use a small application called toonel. its in jar format and it helps to compress traffic. i can run it succesfully but i cant seem to be able to get my applications e.g firefox to communicate with it!
normally in windows i just start the app, then set my browser proxy to 127.0.0.1:8080 which is where it listens for connections but so far in ubuntu i cant seem to be able to get it to work.