UNIX/Linux Programming - C++ Forum

by vijkrr

How to check the client connection exist or not

Hi, I'm new to C socket programming. In my C code i want to check is the particular client is con...

[7 replies] Last: thanks alot sharma and kevin.. sure this will help me to solve my p... (by vijkrr)

by vijkrr

How to create our own thread class using pthread

Hi all, I want to create a generic thread class in UNIX using pthread.h. But pthread is accepting...

[1 reply] : you can look at the implementation of boost threads or ace threads.. ... (by writetonsharma)

by mathueie

api to get CPU utilization

Hi, I am looking for api to get CPU utilization in linux. I want use that api in c++ progr...

[1 reply] : Most programs (like top) just read /proc/stat which contains, on a per... (by jsmith)

by jmcdonald

How do you close an ofstream if close() fails?

Good morning, I ran into an interesting problem recently while coding an application that can wri...

[2 replies] Last: No, I haven't tested it using native calls yet. As soon as I get a ch... (by jmcdonald)

by vRltwE

Openning files

Hi, why this does not work? string file_name; file_name = "/home/cristiano/matrix4...

[4 replies] Last: Thanks kbw, it works! (by vRltwE)

by retronoodle

how to get the age of a file in linux?

Hi, I need to compare the last modified date of a file to the current time and determine if its over...

[7 replies] Last: Thank you PanGalactic. Ill try this as soon as I get home. Also thank ... (by retronoodle)

by vijkrr

Error in using popen

hi I'm using one popen function, via that i'm executing the unix commands. The Popen function is...

[2 replies] Last: i fixed the issue. i didnt close the opened IO's.. (by vijkrr)

by kakashi316

undefined reference?

I have the following peace of code for the producer_consumer problem: #include <stdio.h> #include ...

[1 reply] : This is cplusplus.com, not c.com. A C++ programmer would create a Que... (by PanGalactic)

by nikola17681

open file from root directory

How do you open a file from the root directory without have to type the complete path? string ...

[3 replies] Last: I know, I made a mistake. I'm sorry. My problem has solved here: ht... (by nikola17681)

by ilyes

change of directory in makefile

hi, i would like to execute ..... BIN=/home/usr/projet/bin all:prog mv -f $(EXEC...

[1 reply] : What do you want it to do once it gets there? Each command is execute... (by PanGalactic)

by rasslove

how to put a c++ program in the web ?

Dear all, I have a huge c++ program (gcc compiled) that runs on a linux console. It's an interact...

[2 replies] Last: try cgi.. you can have a html page that can invoke your c program.. (by jjose)

by vijkrr

getting time stamp in micro or milli scronds

hi I want to get the file creaton times in micro or milli seconds. Can any one help me in how to ge...

[3 replies] Last: glibc has st_ctimensec (ctime nanoseconds) as part of struct stat .... (by PanGalactic)

by calvin1965

lost task bar

I accidently removed my task bar from opensuse. Anyone know how to put it back on? Thanks in advan...

[1 reply] : This is not a programming question. Go to the OpenSUSE support forum f... (by GenTiradentes)

by Syntax

C++ networking Question

How would i do networking with C++? I new to network programming newbie.

[6 replies] Last: It might be for a learning experience! Though I do agree to an extent.... (by closed account S6k9GNh0)

by jamevaalet

sharing variables

how to share an array by using shared memory..? shmget() will return a void * .but how to share an ...

[9 replies] Last: *minor edit* - changed some stuff to sound less like a jerk. (sorry) ... (by writetonsharma)

by davidsea5

How to use execl() to include linux command in a C program?

I tried to write a program which includes the execl function how can I do that? for example, what ...

[2 replies] Last: you can use 'system( )' call for ease if you use gcc. Include the ... (by Nax0r)

by vijkrr

How to run a .lex program in unix

Hi, I'm new to Unix, i want to run one .rex program from Unix. My program w120p.rex which is work...

[1 reply] : This isn't about programming. Please read the rules / the forum topic ... (by closed account S6k9GNh0)

by sever

Encripting communications

Hello everybody, I'm working in a client-server GNU/Linux applications and I'd need to know which...

[1 reply] : OpenSSL is the library you probably want to use for this. They've got... (by PanGalactic)

by Exussum

get.cin(), nested if statements and recursion troubles

I've dabbled in a bit of C and C++ over the years but now i want to learn more. So the best way in m...

[3 replies] Last: Ah -- I missed the function declaration with the default value. Thank... (by PanGalactic)

by DrunkProgrammer

simple string comparison problem

#include <iostream> #include <stdio.h> #include <stdlib.h> using namespace std; int main ()...

[2 replies] Last: Man, implicit int to char coersion sucks. Hint: you want popen(3), ... (by PanGalactic)

UNIX/Linux Programming - April 2009

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