C++

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UNIX/Linux Programming - February 2010 (Page 2)

how do I use local variables with the system() call

say I have a variable declared as string str = "filename"; and I want to do system( "wget www.someurl.com -O <value of str>" ); how would I go about do...

[5 replies] Last: Yes, you can do that, but considering the article you wrote about th... (by chrisname)

by Slacked

Char by char output using sleep;

It seems to be a trivial problem but I can't figure it out. I'm trying to output a string character by character using the sleep function: #include <io...

[2 replies] Last: Also, please don't use system () to sleep. http://www.cplusplus.com/... (by Duthomhas)

by analogMACHINE

Gcc Linking

In Gcc is it possible to recursively compile .cpp files attached to one a single .cpp file until all associated files are compiled? And if not how would you acc...

[3 replies] Last: No. You need makefiles for that. The GNU Make utility has the power to... (by Duthomhas)

by unregistered

Qn on POSIX header files

why do books state to #include <sys/types.h> when I'm using socket when it simply works fine when I just #include <sys/socket.h> btw, what does <sys/un.h> an...

[3 replies] Last: Always observe the manual pages. If they say that you should #include ... (by Duthomhas)

by ghostpy

Problem Accessing C++ Code From Within C Source

Hi fellows... Today I'd like to steal you a little of your valuable time to see if you can help me solve a puzzle in which I introduced myself. I'm develo...

[no replies]

by silvan

error while loading shared libraries

Hi I get the following error message when executing my program from the command line: ./comtest ./comtest: error while loading shared libraries: libco...

[2 replies] Last: Hi Silvan, first of all I'd recommend that you know exactly what are t... (by ghostpy)

by moorecm

OpenMotif

I am currently attempting to add bidirectional language and complex text layout (CTL) support to an OpenMotif 2.3.0 application. It is internationalized using ...

[no replies]

by Srij

Need information regd C++ uses on unix

Hi All, I am at the beginner level to C++ programming now.I actually want to know where c++ programming is used on unix/linux.Is it mainly used for system prog...

[1 reply] : You can do almost everything in C and C++. It stretches from games to ... (by closed account S6k9GNh0)

by ahmakki

how to use unkown pipes ?

in this code i am tryin to pass the Id to the child process but it doesot work .i think the problem is in wich pipe to close . file : racine.pp #inclu...

[1 reply] : Both the parent and the child close the write side of the pipe. You ... (by jsmith)

by badboizEnt

how do i exit from a created shell?

hi everyone, have the following code below in C. i have bin able to figure out ho to come-up with a help program that prints out certain things. please could so...

[8 replies] Last: First of all, "hakermania?" "A 15 year old child with the purpose of [... (by chrisname)

by samiransari

GCC not generating object!

Hi All, GCC is not generating the object for part of the C++ source when an uninitialized local variable is used within an "if" block or used in another "if"...

[4 replies] Last: jsmith is correct. You cannot expect compilers to behave the same way... (by PanGalactic)

by Spummy

"error: expected constructor, destructor, or type conversion before ...

Hello all, I'm messing around with SDL in C++ and I've encountered this error while trying to create an array of a class type "Entity". class Entity { pub...

[10 replies] Last: The code i gave you compiles for me with out any errors. this code ... (by DrakeMagi)

by closed account y8h7M4Gy

Linux or Windows for programming? (1,2,3,4)

Hi, I am running a 64 bit version of windows and it sucks. I'm thinking about switching to linux, but I just want some more opinions about what operating sy...

[77 replies] Last: I enjoy using g++ and gedit, while it may seem non-user friendly at fi... (by DrChill)

by badboizEnt

Design and implementation of a shell

i was able to create this shell below. how can i make this shell support commands like cp, del, cd, host, quit etc. i have tried the help calling the function o...

[3 replies] Last: If you don't know how to compare strings, how are you meant to know ho... (by chrisname)

by teppel

Insert variable into database insert statement

#ifndef __DATABASE_H__ #define __DATABASE_H__ #include <string> #include <vector> #include <sqlite3.h> using namespace std; class Database { publi...

[2 replies] Last: this is an example: char lz_sql ={0}; sprintf(lz_sql, "INSERT I... (by yikuang)

by Aaron09

unix pico editor

does anyone know the command that will copy code out of pico and paste back into the editor.

[no replies]

by creature

Functions using bitsets

Hi I have been trying to get the following function using bitset structures to work for a while now but I cant seem to get around the segmentation fault. Can an...

[7 replies] Last: The idea is to convert a series of numbers (stored in r) ranging from ... (by creature)

February 2010 Pages: 12

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