C++ is a general-purpose programming language.

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How to use GDB to trace C++ library?

Recently, I want to use GDB to debug my C++ program. But I find when I use CTRL+X+A to see the source code of my program, it cannot show the library code of C++. For example, when I want to trace ...
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1answer
295 views

how to install downloaded g++4.8 deb archive in ubuntu 14.04 lts?

I have installed Ubuntu 14.04 LTS. The g++ compiler is missing in it. So, I downloaded g++ 4.8 deb archive. But I am not able to install it. ehn I open the package, ubuntu software center opens up and ...
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1answer
35 views

Can I remove cpp from Ubuntu without causing any issues?

I have a C++ compiler installed on a Ubuntu server I am using as a LAMP stack. Will it cause issues for me to remove C++?
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1answer
631 views

Skipping incompatible error when compiling mysql library using arm-linux-gnueabihf

All problems posted related to mysql library use standard gcc compiler. However, I need to compile a project running on a beaglebone black device. Hence, I am using arm-linux-gnueabihf-gcc instead of ...
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1answer
319 views

Separate terminal windows for input and output streams

How do I use different xterm or terminal windows for input and output streams while programming in C++ such that I enter input in one terminal window and get output in another window?
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99 views

c++ debug jump back netbeans and eclipse

All the latest netbean ide and eclipse ide for c++ open some project and then rebuild and debug, it will somehow jump back to somewhere when I press step over,like this (from 44 to 40): Can ...
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1answer
1k views

clang++ fails to compile simple hello world c++ program

After upgrade to 14.04 from 12.04 clang++ stopped working. $ cat test.cpp #include <iostream> int main() { std::cout << "Hello World" << std::endl; return 0; } $ ...
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1answer
402 views

How do I create simplistic window-like elements in a command-line program?

When I execute sudo dpkg-reconfigure lightdm in the terminal I see a simplistic window-like listmenu. Is there an way to make something like that in C++? This looks something like:
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0answers
85 views

Developing 32 bit application and using it in 64 bit Ubuntu 14.04

I would like to develop 32 bit c++ applications on an Ubuntu 14.04, 64 bit machine and use it on both 32 bit and 64 bit machines. One of the main difficulties I face is that I use some library which ...
4
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3answers
10k views

How can I know that I have g++ installed in my ubuntu? [duplicate]

I have recently installed ubuntu 14.04 . I tried to run a c++ code by a command like this: g++ first.cpp -o first Then it said: The program 'g++' is currently not installed. You can install it by ...
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1answer
2k views

How do you get C++ to compile from Code::BLocks? (Beginner to Linux)

So I just recently installed Linux after using Windows for my whole life. I also just installed the C++ IDE named code::blocks using the following command in the terminal: sudo apt-get install ...
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1answer
2k views

Codeblocks set up?

Hi I am looking to set up code blocks IDE to dev C++. I have installed it and used it to do a first hello world app. I tried to compile and run but it has a debugger and what appears to a link ...
2
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0answers
243 views

lock/unlock events for in C++ app which should not depend on screen savers

We have a product, which was developed for Windows. Because of customer request we are developing it for Linux also. So being a beginner to Linux, have migrated most of it (which I loved it). Now got ...
4
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0answers
555 views

How to create an Ubuntu Touch app with a C++ backend and a QML interface [closed]

I'm looking forward to the release of Ubuntu Touch and thought it would be nice to contribute a small and free app that I'm also using now on my Android phone. The free and open source app for ...
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3answers
9k views

Eigen installation seemed to work, but I still can't make eigen work

I am trying to install eigen, but I don't seem to get it to work. I did: sudo apt-get install libeigen3-dev and everything seems fine, after dpkg -p libeigen3-dev I get: Package: libeigen3-dev ...
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2answers
457 views

read from text file in qml qt/quick

I have a program to preview images that store every image's path (all images are in my computer) in text file. first i open text file and read line by line images paths and store to a list then i ...
1
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1answer
1k views

Read lines from a text file in QML Qt/Quick

I need open a text file and read it's contents line by line and store each lines in a string list in qt quick 2.2. Can every one help me?
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0answers
197 views

Modifying default KawigiEdit C++ template in Ubuntu 12.10 LTS

I am trying to edit default c++ template of KawigiEdit plugin, but after I configure and save the modified template as default template, there is no effect. Has anyone modified KawigiEdit's default ...
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3answers
2k views

Compiling C code for ARM processor on Ubuntu 12.04

I am compiling my simple "Hello world" C code using the following command: arm-linux-gnueabi-gcc-4.4 test.cpp -o test It generates an error: arm-linux-gnueabi-gcc-4.4: error trying to exec ...
4
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1answer
10k views

Cannot find boost-thread-mt library

I am compiling a program which requires boost-thread-mt library. I have installed libboost-all-dev using sudo apt-get install libboost-all-dev but compiler says that it cannot find boost-thread-mt ...
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1answer
826 views

emit signal with custom type objects array parameter from c++ and receive in qml

I would like to emit a signal from a Qt C++ class which includes a parameter that is an array of custom objects (inherited from QObject) and receive the parameter in its qml slot, but i'm afraid it is ...
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1answer
358 views

Random number generation

I have generated random numbers in turbo C++ ( DOS) by using random command. Again, I have generated random number in ubuntu C++ by using srand and rand commands. Both the random generations are not ...
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1answer
1k views

CrossCompiling with libboost for ARM architecture

I am using a 32 Bit Ubuntu system and my goal is to compile my C++ program for arm architecture (beagleblack). However, my C++ program needs libboost meaning I get errors like this while compiling: ...
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1answer
358 views

Get keyboard input without requiring root and without x11

I'm trying to capture keyboard input in a C/C++ program without requiring root privileges and without the use of X11 XNextEvent(). I've tried to open the device directly, but for obvious security ...
2
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1answer
376 views

C++ system() function for further arguments in ubuntu

I didn't really know how to even look for the solution for this one. My problem is, how to execute system commands in c++ using function system(); but for more arguments(Come on it sounds awful). Let ...
2
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1answer
233 views

Ubuntu SDK: QML with C++ recommended App Design Methodology

Are there documented general guidelines for mixing QML with C++ for ubuntu apps? "QML for UI design and C++ for logic" seems to be the trend. Is this the right way forward?
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1answer
2k views

Issues with importing existing source C++ code in Eclipse CDT

I have cloned an emulator's source code from git, and would like to work on it on Eclipse CDT on my Ubuntu 12.04. I have tried different ways, such as creating a hello world project, and simply ...
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2answers
417 views

How do I compile a C++ program I made in vim?

Whenever I type in g++ toe.ccp this comes up: /usr/bin/ld:toe.ccp: file format not recognized; treating as linker script /usr/bin/ld:toe.ccp:1: syntax error collect2: ld returned 1 exit status
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0answers
2k views

Cmake fails while configuring OpenCV

I'm trying to buid OpenCV and use it in Qt. I have installed all required packages for OpenCV and Qt, after that I tried too run cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ...
2
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1answer
2k views

Unmet dependencies for libstdc++

When i type: sudo apt-get install libstdc++ i got: The following packages have unmet dependencies: libstdc++-4.8-doc : Conflicts: libstdc++6-4.4-doc but 4.4.7-8ubuntu1 is to be installed ...
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2answers
5k views

Are there drivers for OpenGL 4.3 for [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series] (Ubuntu 14.04)

I want to be able to do opengl4.3 c/c++ programming, the [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series] should be able to support it, I just don't know what drivers I have to install Also I have ...
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3answers
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Unmet dependencies libc++ [duplicate]

How should I correctly install clang's c++ library (with STL) on my lubuntu machine? I want to use clang and its c++ library because it offers better support for the upcoming c++14 standard. When ...
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0answers
76 views

Qml HUD integration without MainView?

I'm working on an app with Qt Quick Components, I don't want to use any Ubuntu specific components because I want the desktop version of my app to be more portable than that (Qt 5.2 is enough of a ...
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0answers
102 views

'__FDELT' and '__FDMASK' not declared in this scope (posix_types.h not included)

I'm running Ubuntu 12.04 LTS, 64bit version. I'm getting the following error when compiling a C++ program: ../elements/userlevel/socket.cc:477: error: '__FDELT' was not declared in this scope ...
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1answer
1k views

How to set /usr/bin/i586-mingw32msvc-g++ to gww?

I use cross compiling for C++ using MinGW... I use /usr/bin/i586-mingw32msvc-g++ filename.cpp to compile, but I want to be able to type gww filename.cpp I think I need to set a PATH ...
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1answer
756 views

OpenGL in Ubuntu [closed]

I'm new to ubuntu. I'm using openGL in visual studio 2010 in windows platform using c++ language. Now I'm migrate to ubuntu 12.04. Can I do the same on ubuntu? If yes. what is the way I have to do.. ( ...
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2answers
36 views

ubuntu packaging help

HI I have been using Ubuntu for a while now and would like to create Apps for Ubuntu. I have made a fun game and would like to have it in the software centre but I do not know how to create a debian ...
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2answers
140 views

Why standard output is not printed on command line? [closed]

I'm new in programming. I run simple C++ program, like this: #include <iostream> int main(int argc, char *argv[]) { std::cout<<"What?";} by using the terminal by typing g++ Program.cpp. ...
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0answers
91 views

Publish a QML/C++ application as a click package

I've written an application which I would like to publish as click package. All the guides and prepared projects mention plain QML applications only. My application furthermore depends on a shared ...
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1answer
2k views

Install opencv eclipse

I am using ubuntu 13.10 and I am trying to install opencv on eclipse. I am following this tutorial LINK I do not know where is my library. This what I obtain when I try to find the files. ...
2
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1answer
306 views

Why wouldn't sound be heard on the phone when it works on the desktop with an Ubuntu Touch app?

I have an Ubuntu Touch application in the works. The application needs to playback sound. I've used QtMultimedia from C++ for sound playback. The sound plays fine on PC but not on the phone. The odd ...
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1answer
393 views

apt-get install <package> equivalent using C++ apt-pkg library

I am building a small QT (C++) application where I ask user the software he want to install. Once he selected some packages a, b, c from the list all I have to do is run sudo apt-get install a b c ...
0
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1answer
889 views

Unable to generate core dump after apport disable

Hi I'm currently programming c++ on Ubuntu and am unable to generate a core dump with a segmentation fault. I just get "Segementation fault" and not the (core dump) I have set ulimit -c unlimited. I ...
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1answer
2k views

Netbeans and codelite do not recognize #include <iostream> C++

I recently decided try learn a bit of programming, so I wrote my " hello world" and it did not work. This is my code #include <iostream> using namespace std; int main() { cout << "hello ...
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1answer
1k views

undefined reference to `dlopen' despite CMAKE_DL_LIBS

I'm trying to install the tools for gameplay3d. After following the cmake installation instructions, I get this error: Linking CXX executable gameplay-encoder /usr/lib/gcc4/x64/release/libfbxsdk.so: ...
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1answer
17k views

“configure: error: C++ preprocessor ”/lib/cpp“ fails sanity check”

apcoer@apcoer-Aspire-Series:~$ cd Desktop apcoer@apcoer-Aspire-Series:~/Desktop$ cd libgraph-1.0.2 apcoer@apcoer-Aspire-Series:~/Desktop/libgraph-1.0.2$ ./configure checking build system type... ...
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135 views

How do I set the F77 environment variable to gfortran?

I'm new Ubuntu (and linux) user. In order to do my senior project, I have to install psrchive I use this command to install psrchive ./psrsoft/bin/psrsoft psrchive --no-cfitsio This is part of ...
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0answers
528 views

How to take screenshot in jpeg format using ubuntu tools only

i need to develope a cpp software to capture screenshot ( in jpeg format ) and send images's bytes through a socket. I created correctly the server socket but i don't know how to take a screenshot ...
0
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1answer
178 views

How to add paths in ubuntu

I know that this is a very popular question with a lot of threads already about it, but unfortunately after trying some of the suggestions I didn't manage to solve my problem, so I am posting a new ...
0
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1answer
136 views

what is the best editor for C++. I want to use C++ for my Masters project [duplicate]

what is the best editor for C++. I want to use C++ for my Masters project. Please suggest the best editor for C++