C++ is a general-purpose programming language.

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Error at video processing with gstreamer and visualstudio

We used source like this for get streaming files from g-streamer. #include <ctime> #include <fstream> #include <iostream> #include <raspicam_cv.h> using namespace std; int main ( ...
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15 views

makefile/link problem -lSDL [on hold]

I recently tried to make a makefile and it works fine on my laptop. I was making a game in c++ and shared my code on github. One of my friends cloned the repo and informed me that he ran into some ...
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1answer
96 views

How do I install gcc 6 (latest 6.1?) on Ubuntu 14.04 LTS, make c++14 the default and will my libraries work? [duplicate]

How do I install gcc 6 (latest 6.1?) on Ubuntu 14.04 LTS, make c++14 the default and will my libraries work? Also, what problems can I expect if any? Lastly, please walk me through this because i am ...
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25 views

Best compiler for coding//// [on hold]

what is the best compiler to run mid level programming languages???
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9 views

Running AES in HElib

I am using Ubuntu 14.04. I am trying to run AES in HElib but I have a Segmentation fault (core dumped) I tried to find the error by strace command and I received the error: write(1, "computing ...
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0answers
11 views

Why does lldb failed to step into function of shared library [migrated]

I'm having trouble with lldb3.8 on ubuntu16.04. lldb failed to step in functions of my shared library while gdb can. The code is very simple: main.cpp: int main(int argc, char *argv[]) { MyLib ...
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1answer
35 views

Installing boost into /usr/include

I am trying to install boost into the folder /usr/include. I tried sudo apt-get install libboost-dev, but the highest version apt-get provides is 1.58 instead of the newest 1.61. Then I downloaded ...
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1answer
28 views

How do I get right output in C++? [closed]

While output to .dat file , there are 16 columns, but according to my C++ programme , the file should contains 100 columns, but it doesnt happen . What is the programme error ?
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1answer
38 views

Why does it show “'string' was not declared in this scope” in line 6? [on hold]

#include <iostream> #include <string> #include <map> int main(){ std::map <string, int> example; example["keyOne"]=1; example["keyTwo"]=2; std::cout << ...
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1answer
31 views

system(“pause”) for Linux g++ C++

In windows when compiling, system("pause") works, what is the equivalent in linux?
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1answer
13 views

thrift-0.9.3 package C++ build issues. Which boost packages to use?

I am seeing compilation issues in thrift-0.9.3 package( I did downloaded from https://thrift.apache.org/download). Some linking errors are observed in lib/cpp/test. Can any one suggest me what version ...
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18 views

error: SCmathlib: No such file or directory

I have written code for conjugate gradient in PuTTy C++. When I try to compile it, it throws the error below. error: SCmathlib.h: No such file or directory cg13.cc:11: error: '::main' must return ...
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1answer
17 views

Does Cppcheck has a gui for ubuntu 14.04?

I want to use Cppcheck for my C++ based program. If yes, how do I install it? I can't seem to find any instruction for that anywhere. Thanks
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1answer
32 views

How to run multiple or single C++ .cpp files on terminal? [closed]

Everything is running on codeblocks and I don't know how to do it on terminal.
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16 views

Ubuntu: Cannot open shared object while executing c++ program

I've tried to install library from sources. After calling "sudo make install" I've got following information: If you ever happen to want to link against installed libraries in a given directory, ...
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0answers
14 views

which include needed in Octave

I've started working with the octave library in C++. I need to uses the functions: polyfit and csaps. Which in includes do I need to run these functions? Koby
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19 views

Setting up a window manager development environment and a basic guide

I am using Ubuntu and I am not able to understand from where can I get the Xcb libraries. While I was checking some guide (whose name I forgot) I got the command : cc file_name.c -lxcb It was written ...
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1answer
32 views

Where are the headers of libavcodec and libavformat located?

I executed the following commands in the terminal: sudo apt-get install libavcodev-dev sudo apt-get install libavformat-dev I tried to find the headers (various #include<libavcodec/*.h>) in ...
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0answers
56 views

How can I run an c/c++ program that use GNU Scientific Library (GSL)?

I'm trying to run 2 simple examples in c/c++ using the GNU Scientific Library. That are the codes: 1st: An Example Program #include <stdio.h> #include <gsl/gsl_sf_bessel.h> int main ...
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233 views

Ubuntu 16.04 LTS and Oracle Instant Client - C++ linking error

First of all: i hope that my english is understendable ;) I'm not sure if the problem is more suitable for StackOverflow or AskUbuntu, but I will ask. I have two virtual machines. On one Ubuntu 14.04 ...
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0answers
19 views

Ubuntu Xenial: perf doesn't demangle C++ symbols

Linux perf-tools don't seem to work as expected on Ubuntu (16.04). C++ symbols don't get unmangled, I only see garbled stuff like "_afki34334ldfjkdasf_dfkj". Note that I have compiled the program and ...
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26 views

14.04 X11/xlib Bad Access

I asked this question on StackOverflow (link) but then thought this might be the better forum to get my question addressed. Basically, I wrote some code to listen for certain keypresses (like 'c') ...
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335 views

GLIBCXX_3.4.21 not defined in file libstdc++.so.6 with link time reference

When trying to execute any c++ programs, I get this error. The full error message is: ./main: relocation error: ./main: symbol _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC1Ev, version ...
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1answer
16 views

Using arc4random on Ubuntu 14.04 trusty

I am currently working with a C++ program where I wish to use arc4random function. Every time I compile, I receive a not declared in scope message for arc4random. I understand that this is an error in ...
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29 views

problem with installing mysql-server5.5 with ubuntu12.04, socket file not found

I am trying to create a database in ubuntu 12.04 after installing mysql-server5.5 but I got the following problem. after checking it seems the subfolder var\run\mysqld that should contain the socket ...
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2answers
27 views

Problem to compile python and C++ code using ubuntu Ubuntu 12.04.5 LTS: problem with gcc

I am trying to compile a code involving python and C++ in Ubuntu 12.04.5 LTS and I have this type of error hammouc@kw13921:~/Documents/mimclib$ make python setup.py clean running clean removing ...
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1answer
70 views

Making my 32-bit program code compile on 64-bit Ubuntu (looking for safe path)

I have for the first time installed a 64-bit Ubuntu on my laptop. Now I am looking for a way to compile my old biology C++ project on this OS. I have a .sh file that installs all necessary packages ...
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71 views

C++ Broken Compiler GNU Radio CMake

I'm trying to build GNU Radio from git with a cross-compiling environment, but I get an error saying that my c++ compiler is broken. I've tried changing the compilers in the CMakeCache.txt inside the ...
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1answer
57 views

I can't compile a Qt project

I was trying to compile a project I checked out from github but I get these errors: /usr/bin/ld: cannot find -lQtGui /usr/bin/ld: cannot find -lQtNetwork /usr/bin/ld: cannot find -lQtCore It worked ...
3
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1answer
49 views

How can I use sqlite3 in my Ubuntu Phone app? (C++ backend)

I want to create an app, which has a C++ backend and uses sqlite3. I can connect to an Database in memory using the following code:m_db = QSqlDatabase::addDatabase("QSQLITE"); ...
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36 views

Create Ogre3D 2.1 project

I have downloaded the Ogre3D 2.1 source, compiled and installed it without any issues. To my knowledge I have a working installation. The problem now is that none of the official project templates ...
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1answer
91 views

How can I write a dynamically updated panel app / indicator?

I am trying to write some panel apps for ubuntu Mate. I know C/C++, and SDL reasonably well. I have seen the Mate-University panel apps github page, but i cannot get it to work properly / Im having ...
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14 views

where can I get opengeom.h?

I am reading about open geometry, and many documents reference an opengeom.h where can I get it, what package is it part of? I looked around in synaptic package manager, but there are many options, I ...
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29 views

Installing XML-RPC C++

I am trying to install XML-RPC for C++, and it seems like this library is the most often used. However, when building it using ./config, I get the error message: configure: ==>We are not building ...
3
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1answer
85 views

Installing latest version of wxwidgets

I am attempting to install the latest version of wxwidgets via the terminal. I followed these directions. However, when I navigated to the folder /usr/include, a folder was created called ...
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1answer
148 views

Clion “Bundled Cmake does not work in this enviroment” ubuntu 14.04

I used Eclipse CDT for college lectures, but today I found the solution for C/C++ by JetBrains. But I can't compile because I don't know how to set the compiler.
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11 views

C++ with compiler for Ubuntu 15.10 at 64G [duplicate]

I have tried to use GCC and g++ compiler which i am assured is embedded with my OS 15.10, I have tried using the terminal to no avail the question that i wish answered is this how can i make use of ...
0
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1answer
58 views

can't compile .cpp file with clang even after installing clang3.8

I installed clang3.8 with bunch of other packages that I usually need, after a fresh installation of Ubuntu 15.10 using following command: $ sudo apt-get install clang-3.8 clang-3.8-doc ...
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48 views

How to control system volume with C++/QML?

Helo, I want to develop an app. It should control the system volume by day time. I have two questions: How to change system volume in C++/QML? How can I run my app as a service that will ...
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0answers
69 views

Undefined reference - fftw

I have a problem with compiling my code and I get the following error: /home/maxfkira/Demo/lib/libdemo.a(TracHold.o): In function 'exitTrac::extAL()': TracHold.cpp: (.text+0x1b): undefined reference ...
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1answer
72 views

Segmentation Fault (Core Dump) Happen and NOT Happen on 2 Different Distro of Linux [closed]

I'm a newbie to Linux OS, I installed Ubuntu 14.04 LTS (64 bit) to do a C++ project. Unluckily, when my teacher gave me a C++ code, I got a Segmentation Fault (core dump) when I ran it on my Ubuntu, ...
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70 views

resolve: No such host is known?

I am facing a strange issue while trying to resolve endpoints using boost resolver in c++. Case: I am trying to connect to a website http://localhostIpAddress/test/ using boost. where local address ...
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2answers
41 views

Change default editor for .cpp files

When I double click .cpp files I expect gedit to open it, instead RStudio opens it. How to set gedit as the default editor for .cpp files?
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1answer
78 views

How do I link the OpenAL library to eclipse in Ubuntu?

I just downloaded the OpenAL library using the command sudo apt-get install libopenal1 libopenal-dev, now I can't find where the library is on my system and how should it be linked with Eclipse. I am ...
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1answer
248 views

How do I install and setup the environment for using PortAudio?

I am quite new to Ubuntu and I find it hard to install programs/libraries. How do I install and build PortAudio in Ubuntu using the terminal?
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56 views

Error compiling Q-Rap on Ubuntu 14.04

I'm trying to compile Q-Rap (http://www.qrap.org.za/) on Linux Ubuntu and I'm keep getting a flood of errors like this: $ make qrapplugin [ 1%] Building CXX object CMakeFiles/qrapplugin.dir/qrap.o ...
3
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1answer
204 views

Undefined references compiling clang tutorial on 14.04.2

I tried to compile the code from clang's libtooling tutorial (section "Put it together"). Compiling works: g++ `llvm-config-3.5 --cxxflags` -fno-rtti -c test.cpp -o test.o I got undefined ...
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vote
1answer
65 views

Can't execute compiled program: Exec format error [closed]

First, this has nothing to do with 64bit-32bit mismatch, file extensions, nor permissions. I compiled a program (C++ 11) in a non-Ubuntu distro, and I uploaded it onto an Ubuntu Server (64 bit) with ...
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1answer
89 views

How to upgrade g++ to the latest version

Newbie here. I just got an error running from the terminal a C++ program I wrote: error: ‘stoi’ is not a member of ‘std’. They told me the compiler is too old. I'm using Ubuntu 14.04. My g++ version ...
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1answer
77 views

Cannot find ld when non-root user

I have an autocompile program available on a website that I am running. The program uses clang++-3.5 to compile C++. When I run the auto-compile python script, as a root user, compilation is ...