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UNIX/Linux Programming - August 2011 (Page 2)

by rainman1985

Does the exception "std::bad_alloc" mean that the system memory is out?

Does the exception "bad_alloc" mean that we don't have enough memory left? Can any other problem trigger this exception?

[4 replies] Last: To add to the above, another problem that can trigger this exception i... (by m4ster r0shi)

by nanger

mutex lock destroy on APUE

struct foo*fp; pthread_mutex_lock(&fp->lock); if(--fp->count==0) { pthread_mutex_unlock(&fp->lock); //if some other thread modified count, what wi...

[1 reply] : You mean after the unlock? Nothing. What's supposed to happen? Althoug... (by Athar)

by VilleA

GTKmm segmentation fault when calling other function with void*argument

Hi there, Now, I have to say that I have no clue what's happening here: #include "window.h" #include <gtkmm/main.h> void itseikkunatesti() { int a...

[2 replies] Last: thanks, works now! Just passed the main arguments on to the function. ... (by VilleA)

by nachdenklich

Sorting a List of type string

Hi everyone, I have a list which contains strings. The strings contain dates, and are of the form "12 March 2011". I want to find a way in which I can sort t...

[2 replies] Last: Whatever you do, it would make sense to write a function that parses t... (by andywestken)

by gianc

ioctl and TIOCSRS485 problem

I have to set my serial port for a rs485 serial comunication but when I use the ioctl function I have an error, this is the code: struct serial_rs485 rs485co...

[4 replies] Last: the struct is so defined struct serial_rs485 { __u32 flags; /* RS48... (by gianc)

by mrityunjayccpp

createing mini editorin c c++ linux

how to Write a program for a mini editor which allows the the following operations: Insert lines, delete lines, edit lines (adding words, removing words). Each ...

[6 replies] Last: Sorry! The description is quite vague (to me), and as I know nothing m... (by andywestken)

by VilleA

sigc::mem_fun / GTKmm question (pointers and classes)

Hi, And thanks in advance if somebody is able to help me. I am using Ubuntu and wanted to do GUI, so I went for GTKmm. My whole project is now about 6 differe...

[6 replies] Last: Thanks a lot! It works. I appreciate the help! (by VilleA)

by brokenbot

Using the include with quotations in shell

Hey, I'm wondering if i can use absolute paths or even relative paths with my include double quote statements for my source files. as in #include "/home...

[1 reply] : You can use absolute and relative paths. (by Moschops)

by tition

C++ via CGI: how to set ignore user abort() ?

Hi all, I have a C++ application that is hooked up to an Apache server via GET and POST methods (and creates .html via std::cout ). The Apache cgi-script c...

[2 replies] Last: Thanks for the advice! The references you gave me worked just great! ... (by tition)

by vasiqshair

Using execvp() and fork()

For the life of me, I can't get this program to run. I tried this first on MS Visual Studio only to realize there are no fork and execvp on Windows. Then using ...

[1 reply] : http://www.cplusplus.com/forum/general/46540/ (by Catfish)

by ausairman

makefile error..

Hello, I have just downloaded a c++ package called TSNEAT, which is compiled with this makefile. However, when I run it using make in ubuntu, I simply get ...

[6 replies] Last: Oh right, so I should be executing those instead of the makefile.commo... (by ausairman)

by software2010

How to CGI C++?

Hi, I have a project with about 30 files mostly .c files written in C and live on Apache webserver /Unix, which are nothing but CGI programs responding to Web ...

[1 reply] : A .sln is a solution file for Visual Studio; There's no such thing* in... (by krakissi)

by Xploitz

Makefile Backup Target

Goal: I'm trying to create a PHONY target inside my Makefile so that when I run the command "make backup", It will move all the files that end in "~" into th...

[2 replies] Last: ¿what does the '@' at the start of the line? hides the command so t... (by Xploitz)

by rudy01

crossing between Linux and Windows and Mac

Hi, I have a very simple c++ code, and it is using all standard static libraries, which I believe are all defined on Unix/Linux and Windows. I have developed...

[4 replies] Last: As kev82 stated, without using a cross-platform compiler, you would ha... (by shacktar)

by Raggers

Eclipse SDL Symbols could not be resolved problem.

Hey, I normally don't work in Eclipse but I'v been asked to deliver some of my work as a eclipse project. And I'v started to working with it a bid. After...

[1 reply] : I ran into this similar scenario with STL libraries when using the QT ... (by Don Gosnell)

by texus

reboot computer, but save all data

I am relatively new to linux and I was trying to write a program that reboots the computer. I tried using system("reboot") and also with shutdown or init, but ...

[4 replies] Last: That won't help much because I am the only user on the computer (I sho... (by texus)

by CrookedSpire

TCP/IP packet "pass thru"

Hi, I'm currently new to C++ and I'm working on a small project of mine. What I'm trying to achieve is this: A client attempts to connect to the server...

[2 replies] Last: What kooth suggests is a star shape network. You may want to take a lo... (by h9uest)

by mgm11

first time user of strtol

hi i have to use strtol to error check that my second parameter is between 0 and 1023. if not i must print out "R". i have this from a lecturer of which he r...

[6 replies] Last: errno is only used for underflow or overflow, but it should still be c... (by andywestken)

by Arthur Lucas

How I can clear a string before of use ?

How I can clear a string. For example aux is my string In the first loot I used aux = 1 aux = 1 aux = 1 aux = 1 but if I went printf all aux wa...

[7 replies] Last: If you just set the first char in the string to 0, you also have to re... (by andywestken)

by Yours3lf

unicode stringstream

Hi, I used to do this while I used ASCII characters, but now I need to use UNICODE, and I couldn't find the answer after googling some, and searching the for...

[10 replies] Last: I finally solved it, can't believe how stupid the mistake was... I swa... (by Yours3lf)

August 2011 Pages: 123

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