UNIX/Linux Programming - C++ Forum

binary code incompatibility between Fedora and Linux.

I have run into the following issue: I have simple program : #include <iostream> using namespace std; int main() { cout << "Hello, World" << endl; re...

[9 replies] Last: That's fine. You shouldn't be having any problems with dlls you create... (by Duthomhas)

by divya balachandran

usage of for loop in the place of while loop

how to use for loop instead of while loop in reading a file ?

[1 reply] : For fun: for(;/*while condition*/;) { //do stuff } Realis... (by firedraco)

by divya balachandran

Related to Qt3--Beginner

Iam doing an editor using Qt3-C++..and i want to display the contents of a existing file in a text editor.the code i tried out is... FILE *pFile; char *...

[1 reply] : The QTextEdit::setText () function does not append text, it sets a... (by Duthomhas)

by inini

math.h namespace problems

Hello, I'm developing a c++ application on ubuntu. I use some pre compiled libraries (I worked with them before) the thing is I'n getting error messages when...

[6 replies] Last: Posting a sample of the Vector3.h or Atom.h files would probably help.... (by Saneticus)

by kanesoban

undefined reference (1,2)

Helo, i'm writing a program, that consists of 4 files. I'm using g++ as a compiler. The problem is, that i'm getting these messages when trying to compile: ...

[26 replies] Last: Doxygen can create a lot more than just API docs. The next generation... (by bnbertha)

by vvadan

Connection Pool -- Locking, Concurrent Access

Sorry for all my previous posts let me explain the exact problem There is a singleton object in the shared memory. It conatins a pool of connection object...

[11 replies] Last: err I know =\ (by Zaita)

by vvadan

Using Locks in a function

hai plz help me Iam locking an object in a function fun1() and iam using that object in another function fun2() and unlockin it will the lock still holds g...

[11 replies] Last: I would hardly call them "suggestions", more guidelines you need to fo... (by Zaita)

by vvadan

Shared Memory Object Access

Hi iam a newbie to C++ I have a problem, pls give me a solution I have an object in the shared memory which encapsulates an array of 6 objects. I want to...

[3 replies] Last: Multi-Process and Multi-Threaded development is extremely difficult. B... (by Zaita)

by pfsmorigo

Makefile define

Hi everyone, How to set a define in the makefile that recognizes in the code? Like this: in my Makefile: LINUX=1 in the code: #ifdef LINUX #i...

[5 replies] Last: 10X for your reply. (i didnt find how to create a new topic). Howev... (by kerenLinux)

by theChameleon

pthread, mutex, functions, classes...

hello how do i make both threads have access to the same set of updated data, when they call different functions? in addition, is the way i pass in the ...

[3 replies] Last: How new are you to C++? Multi-Threaded development is exponentially mo... (by Zaita)

by gct

Linking static library into shared library?

OK so I'm trying to get boost python working in a project I'm working on, the net result of my build should be a single python module. I'd like to avoid forcin...

[4 replies] Last: ./bjam --toolset=gcc --build-type=complete (by Zaita)

by rajenipcv

Reading an image into a 2D array

Hi all, I have just switched over from windows XP to ubuntu 8.04 and enjoying it. I have(obviously) g++, and eclipse SDK to do programming with c++. I am new ...

[4 replies] Last: Many thanks :) (by rajenipcv)

by trig cesis

Cross-Compiling from Linux

Hi to all, I know that what I'm going to say is going to sound very strange to many of you, so I'll try to explain a bit... I made a Unix C Launcher for *nix s...

[4 replies] Last: I know what you're saying Duoas, and I actually though of it yesterday... (by trig cesis)

by ronan40060

calling netstat through a C++ code

Hi all In oder to catch the SOAP Server thread running in backgroun in CLOSE_WAIT state , Im writing a code to execute the netstat within my server code I...

[no replies]

by kacko

Open a window on Linux

I was looking around the web for a tutorial on how to open a window with C++. And I kept coming across the windows.h header file. Is this header file for t...

[2 replies] Last: Thanks Duos, I by accident (I really just forgot I made this post) re... (by kacko)

by tyler

problem, word program

i need to make a program which reads from a file which has a word list. i then need to input more than 3 letters, and less than 8, and then see how many words w...

[3 replies] Last: I did something similar a few days ago. I read the words into a map... (by Mitsakos)

by tnjones

How to read files in alphabetical in the local directory in Linux using C++

Hello, I am new to Linux and is wondering how to read all files in the ./ directory (i.e. local) directory in alphabetical order in C++. I am aware of opendir(...

[5 replies] Last: First, no. It requires an argument. Second, the filename. The link t... (by Duthomhas)

by tnjones

local and current directory

Hello, I am new to linux and have a question pertaining to "the local and current directory", are they the same. Your response is greatly appreciated!!!Thanks ...

[1 reply] : No. See http://www.tuxfiles.org/linuxhelp/linuxdir.html :-) (by Duthomhas)

by waldo

thread with callback procedure

hi, I want write a thread and I want take over a procedure which should be called out of the thread, but I dont know how :( Maybe, anybody can give me a hint ...

[3 replies] Last: I will give a short info: declare a 'variable' to store a (callback-)... (by waldo)

by engintozal

pipe()/fork()/execl() functions do not return output of external program

Hello, I am writing a program which calls an external program and gets its output. I implemented this functionality into a method. When I called the method fo...

[no replies]

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UNIX/Linux Programming - August 2008