UNIX/Linux Programming - C++ Forum - February 2013 (Page 2)

Hi there, i'm in a situation with a server-client issue, the connection is made packets are sent/received but if server restarts then the client must be also re...

[22 replies] Last: I had tried the same test with the same function but adapted for udp d... (by siloan)

by cowless

First linux program

I'm starting my first Linux program and I cant really figure out how to start something like this. I'm not familiar with /proc or any linux commands and the pro...

[2 replies] Last: /proc is kind of cool. I don't think so. The good thing is that you ... (by kbw)

by closed account Dy7SLyTq

SFML help

i wanted to use networking and i knew sfml let me do that so i downloaded sfml cd'ed (it was on my desktop) to it in terminal and typed in sudo make install lik...

[3 replies] Last: Then your lib is not installed properly, there must be some specific f... (by siloan)

by closed account Dy7SLyTq

ncurses colors

hi all! im writing a program with ncurses on ubuntu. ive gotten almost everything down where the library is concerned. the only problem is colors. i cant find a...

[1 reply] : I think this tutorial is very good. http://www.tldp.org/HOWTO/NCURSES-... (by Peter87)

by closed account Dy7SLyTq

(n)curses.h help

I am trying to write a program with either curses or ncurses, but ive tried using both and the terminal says it cant find either of them. i am using ubuntu 12.1...

[5 replies] Last: never mind i got it (by closed account Dy7SLyTq)

by Heartly R

get specific format files in directory

This is C code to get all the file names in the directory. Here I want to only specific format files. Format example I would like to list out only .txt files . ...

[2 replies] Last: Agreed, you need to parse d_name. In your case, you need to match the... (by kbw)

by BABU Prasad G

Recursion problem solution not clear

Hi every one, please any one can explain following program output . #include<stdio.h> int func(int *a, int n) { if(n ==0) return 0; else if...

[1 reply] : 1) func(a,6) calls func pointing to '12', indicating there are 6 elem... (by Disch)

by souper

Fork & Children Processes

The fork() function is a little fuzzy to me. Particularly when you have if/else statements like the one below: if(fork()) printf("I'...

[5 replies] Last: Thanks kbw, that helped. Believe it or not now I am having trouble wit... (by souper)

by sangvv

Diffrent speed in UX and Linux

Hi all, I have small project have two thread. Thread one put message to queue (lock – put – unlock) Thread two get message from queue (lock – get –...

[10 replies] Last: @rapidcoder of course he is locking access to the container, it's mu... (by rapidcoder)

by Kalirajan

How to implement editable text objects(photoshop/gimp/inkscape like text tool) in goocanvasmm using gtkmm3?

I am programming with gtkmm3 and goocanvasmm. How to implement photoshop/gimp/inkscape like editable text objects(text tool) ? After clicked text tool, a cursor...

[no replies]

by mverhage

Sentinals and I/O redirection.

I am doing a homework assignment for my class and I keep getting stuck. I have been staring at it for hours. This is the code that I have: /***************...

[1 reply] : If your confusion is with I/O redirection, that is not a problem. All ... (by Smac89)

by blackendstars

how do i make parent directory, sub dir, then files at once?

the book says to use mkdir and touch to create a directory called "Unix1b" within my home directory with the structure at the following A book that i bought...

[4 replies] Last: I guess pnoid answered your question then mkdir -v Unix1b; cd Unix... (by Smac89)

by vincegata

The exceptions are not being caught.

Hello, Looks like that none of exceptions are being caught. e.g. if I run a code below it will not fall into any of catch. I use gcc 4.6.3 on Ubuntu 12.0...

[4 replies] Last: Thanks guys, I got it now. (by vincegata)

by Spirrwell

.so Files Question

I apologize if this isn't directly related to C++, but I was wondering if .so files work like .dll files. As in, if I have a library that builds dynamically, I ...

[4 replies] Last: Supporting one distribution is beyond easy. Supporting multiple is wha... (by closed account S6k9GNh0)

by ptimothy

Using stat() outside of main() - getting incorrect info

For a project, I am use to write a programs that the user provides an inode number and the program returns all information on that file. (OS: Back Track 5 using...

[1 reply] : struct stat sb; printf("FILE:\t\t\t%s", file); printf("FIL... (by Cubbi)

by drazenmozart

linking error, undefined symbol

Hi!! i'm writing a source code for extending Snort IDS. What i have is a source and a header file. In my source file, at some point i want to use a function th...

[3 replies] Last: tryuterrrgtry675 (by FrankWurm)

by souper

Badly placed ()'s

Hey guys, This is my first post so bear with me... In Linux I am writing the simplest c++ program just to make sure everything can execute before writing...

[4 replies] Last: Try this: #include <iostream> #include <string> #include <sys/types.... (by Galik)

by binladenvn88

Segmentation fault (core dumped) when using clone() system call

I'm trying write small test code using clone() system call. /* * test.c */ #include <stdio.h> #include <stdlib.h> #include <linux/sched.h> struct shared_da...

[5 replies] Last: You may find this article useful. http://www.linuxjournal.com/article/... (by kbw)

by GiannisRambo

Best Make System

Hi I do a lot of programming in C++ on the windows platform, and I do a lot of Java on the UNIX platform. Now I want to start writing and porting some enter...

[11 replies] Last: Thanks. (by kbw)

by bibhukalyana

Bitwise shift operation

Hi everyone, I want to know what happened internally in bitwise shift operation. What happened when i execute the below statement ? value >> 10; ...

[1 reply] : The hardware can probably do value >> 10 in the same time as value ... (by Peter87)

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UNIX/Linux Programming - February 2013 (Page 2)