UNIX/Linux Programming - C++ Forum

by maruf

use of dup2

How can i use dup2 command to write the output of execl command to a file named "newfile.txt"?? # i...

[1 reply] : Before you fork, create a new file descriptor via open() to newfile.tx... (by jsmith)

by charan manju

how to find deadlock scenario using gdb

Hi, My application is running smoothly when I debug with breakpoints, but getting blocked at some p...

[1 reply] : When the program deadlocks, attach the debugger to the running process... (by jsmith)

by vijkrr

What is the equal data type for FIXED DEC in PL1 to C++

Hi, One of my C++ function is called by PL1, from PL1 they are passing FIXED DEC type as argument...

[no replies]

by durcott

History of <String.h>

Hi - can anyone provide a brief history lesson? In 1997 (!) I was using a 'String' class, with me...

[2 replies] Last: Thanks Duoas, THat was very useful. I hadn't realized the role libg... (by durcott)

by Cline Craigue

cin problem

Sorry to bother you with this, but sometimes when I do cin >> nbr; following a previous cin >> opera...

[4 replies] Last: The number in parentheses is the number of posts that he has, it's no... (by QWERTYman)

by alexprg1920

killing processes

Hello everyone. I Have a question. I need to kill process, from my program, knowing it's pid. How...

[3 replies] Last: yeah, very useful link for me. Thanks (by alexprg1920)

by joe3dge

Error messages

Is there a website to go to that will explain what an error message means, in genral? here is an ...

[2 replies] Last: im using Eclipse CDT. im not sure where that is. (by joe3dge)

by joe3dge

gtk events wndproc

when making windows applications uusing winapi, inorder to handle events, you use the LRESULT CAL...

[no replies]

by SeytmourButts

Size of Buffer in recvfrom in Solaris vs Linux

I have a C program that reads custom icmp packets off a socket. The program has been used for years ...

[11 replies] Last: I checked out the link, but I don't see much of any difference in recv... (by SeytmourButts)

by macla

How to change thread Priority

Hi How to change thread Priority in linux.

[1 reply] : I don't believe a POSIX-compliant threads package allows for individua... (by jsmith)

by Impacatus

How can I parse a single character from a unicode text file?

I'm trying to write a program to re-write a Chinese dictionary into a form I can use with another pr...

[3 replies] Last: Woo. After carefully reading the wikipedia article, I realized what y... (by Impacatus)

by goofacz

GCC 4.4.1, C++0x and unique_ptr

Hello! I'm playing with C++0x features introduced in GCC 4.4 for a while. I found interesting beh...

[2 replies] Last: Both declarations template<> friend class std::unique_ptr<AAA>; ... (by goofacz)

by vijkrr

use of pragma pack!! Urgent..

hi, what is the use if pragma pack in c++. what is the difference in giving the pragma pack(1)...

[1 reply] : Packing concerns the binary layout of a struct or class. The items ar... (by kbw)

by sandyleo

Print unicode string on console using wcout

Hi, I am facing issues in char to wchar_t conversion when I use japanese text. Please look at fol...

[2 replies] Last: Printing text in UTF-8, as in Disch's example, should work as long as ... (by helios)

by baramvi

What's compile error : 'isFile' undeclared

I type below, but I didn't success to compile becuase it had error "isFile" undeclared. Why not? ...

[2 replies] Last: Doing that is not recommended. Use stat () to learn whether or not a... (by Duthomhas)

by joe3dge

memcpy anomaly

the memcpy function only works of i have WCHAR var1 ; WCHAR var2 ; after it. this makes no se...

[4 replies] Last: Rant removed. Post your code. (by Duthomhas)

by baramvi

What's mean message ??

What's mean this message?? "g++ : compilation of header file requested." Plz....

[2 replies] Last: I solved my problem. Thank you!! Have a Happy weekend. (by baramvi)

by the4bidn

array of pointers to a class in a class

I have a issue that compiles with a void pointer in vs90 but fails to compile with g++. The first...

[3 replies] Last: Thanks for the reply, it opens reads the file and then closes it. Its... (by the4bidn)

by vijkrr

How to Debug a C++ program

Hi all, I've written a multi threaded application in C++, i dont know how to debug that. If it...

[no replies]

by cdhdds

Why does last line fail?

The routine below fails on the last line. It ran fine on an 8 bit machine some years ago and the li...

[4 replies] Last: When you create a pointer, it allocates just enough memory to handle t... (by closed account S6k9GNh0)

UNIX/Linux Programming - July 2009

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