General C++ Programming - C++ Forum

I was wondering how it was possible to add a array to chars to an int as the function bellow does. Could someone explain this to me? And char *buf is an ARRAY o...

[1 reply] : buf is not a char; it is a pointer to a char. buf+total is adding ... (by Moschops)

by TheCreator

Sockets?

I was wondering why make an non-blocking socket? What advantage does it provide in comparison to a blocking socket? And you could give me an example of when a n...

[3 replies] Last: Thanks, that summed it up perfectly. (by TheCreator)

by SameerThigale

Wats the need of a header file?

Things can be done, without it to, its only needed for properly management of the code! Am I correct?

[1 reply] : When using a library that is already compiled, you need to provide the... (by Moschops)

by SameerThigale

I dont find any need of enums?

Coz I think, there are many options(like macro, or simply declaring a variable) to enums Am I correct?

[1 reply] : No. Besides the fact that they're assigned values automatically, they ... (by Athar)

by TheOtherIsland

When to use #define or const?

I was just thinking about some code I had written where I used the #define directive to make musical note names their own frequency. e.g. #define C0 16.35 ...

[5 replies] Last: Ah, thanks for clearing that up. Time to do a large amount of editing... (by Catfish)

by dearvivekkumar

Header file Inclusion

Hi Which is the better way to include header files. Suppose I have a project containing Example.h and Example.cpp file. Which needs four header file. Head...

[1 reply] : Only include them in Example.cpp, of course. Why on earth would you cr... (by Athar)

by clros

C++0x, thread, promise and future

Hello! I am making a simple template class for communication with two thread in C++0x, using the promise and future. My class make a channel to communicate ...

[3 replies] Last: I don't have <future> installed on my machine, so I'm afraid I can't h... (by h9uest)

by MiKom

Member function templates instantiation in gcc

Hi, I have a problem with class member function templates. It seems that gcc is trying to analyze the code semantically too early, without explicit template ...

[5 replies] Last: Wow, nice solution. Thanks. (by MiKom)

by Phiru

operator???

I am curious about "operator" My book that i'm reading is saying "bool operator==(struct A& val);" What does it mean?? If you have any idea, plz explai...

[2 replies] Last: Thank you mcrist!!! (by Phiru)

by Ares26

Help with the System() Function

Hello! I need help with my system() function so I can add arguments. Here is my code: #include "stdafx.h" #include "windows.h" #include <stdlib.h> int ...

[1 reply] : If you really want to do it that way, use sprintf() to put variables i... (by Zhuge)

by alhanz

Modify selected text from a textfile

Case Solved..

[5 replies] Last: Thx thou, I think I somehow managed to solve it!! Haha!! (by alhanz)

by xeroblast

about c++ classes

is it possible that the parameters of the one function is globally used without using any global variable? void myclass::myclass() { /** code here */ } void...

[10 replies] Last: thanks to all of your replies. im doing it on all your samples before... (by xeroblast)

by soheilghafurian

Include the header files in .lib

I am learning about .lib (static library) files and I have a big question: When we make a .lib project, we include the header files there, but it looks like on...

[9 replies] Last: Oh, sorry. I typed it wrong. What has happened is I removed the heade... (by soheilghafurian)

by fsshl

no match for 'operator<<'

Dear c++ experts: usually the left side of << is ostream or stringstream. but can it be user defined class? I got compile error at place to access it since I...

[3 replies] Last: LB , Thanks your incitation. kooth, That book section 8.3 did not spec... (by fsshl)

by Silvermaul

Sorting by multiple attributes problem

Hi fellow code warriors, I have the following comparison functor : struct sizeSortDescFunctor{ bool operator ()(const Sphere & i, const Sphere & j){...

[7 replies] Last: (If the Sphere object just does a simple member-wise copy, then you do... (by jsmith)

by yodakohl

Boost ASIO Serialization

Hey Guys, I have problems with serialising Objects of NET. Serialising works fine but when deserialising i get the error "Datastream error". Everything works...

[no replies]

by spectrem12

Segmentation fault and new to c++

I am getting a segmentation fault whenever I uncomment the call to the method "removeDuplicates". Any help would be appreciated. #include <iostream> us...

[3 replies] Last: That's not being flushed because it segfaults before the buffer is emp... (by Moschops)

by Luffy

Reading only part of the content in textfile

Hi all, I have a text file containing these: csc : -212 : 21July2011 salary : 2000 : 28July2011 I would like to only read the 2nd column of th...

[8 replies] Last: Thanks. My problem solved. (by Luffy)

by Luffy

Code crashes while running

Hi all, My code crashes halfway while running till the EditCashFlow() portion. It will crash once the user input the choice he want to edit. Below is a l...

[2 replies] Last: My program crash upon hitting this line. cout << "Enter which en... (by Luffy)

by jmadsen

Seg fault while accessing data created in another class

In my main I have: Volume* myVolume = new Volume(); Geometry* myGeometry = new Geometry(); DataHandler* myData = new DataHandler(); and after the ...

[1 reply] : Volume* myVolume = new Volume(); sigh, ¿Is there a good reason to d... (by ne555)

C++

Forum

General C++ Programming - July 2011 (Page 17)