General C++ Programming - C++ Forum

Why does delete [] crash in my destructor?

I have a member variable wchar_t * _message; This array is allocated in the constructor, _message = new wchar_t ; But when I try to free the memory wit...

[5 replies] Last: Why is _message declared as a constant?? It is not constant. It is j... (by webJose)

by FlyGuy1203

Programming a new protocol advice

I am currently working on a project that requires me to create a program to interface with another system via ethernet. The system uses a message based, TLV (t...

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by nny

internet connection needed

hi... i've been looking for some tutorial about making server/client connection for DAAAAYS... all i need is a connection beetwen 2 users of one application (...

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by BrunoBruck

Augmented Reality

Hi.... I need a little help here. I was wondering about programming aplications of augmented reality, but to do this I would have a webcam at least. I wanna k...

[2 replies] Last: OpenCV (by smhillis)

by julia2009

alternate solution for variable variables

Is there an alternate solution for variable variable in C ( or C++) like $$ in Php?

[4 replies] Last: You lost me completely. In any case, C/++ isn't reflective. You don't... (by helios)

by aarmin

palindrom words in a sentence

Need help! Why is output always ZERO? This is should tell you how many palindrom words are in a sentence but it doesn't work. #include <stdio.h> #include <s...

[6 replies] Last: No need for help i solved it! (by aarmin)

by adamthebirdman

Receiving a signal in C++

Hello, I was wondering how I could make a C++ program interpret a signal that is going to the computer. I've been using C++ for relatively simple things o...

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by tazz25

Release Works, Debug Doesn't

I am creating a DirectX Tic-Tac-Toe game. It worked perfectly fine in the Debug and Release versions. I wanted to include sound in my program. I decided t...

[1 reply] : You added the .lib only to the release configuration but not to the de... (by helios)

by Acacia

How to manage a very big number?

I am running a code that computes a very big numbers. The program works untill it reachs its limit then all the rest turns out to be infinity. The number grows ...

[4 replies] Last: 128 bits is not that big. Have you seen the 46th Mersenne Prime? 12.8 ... (by helios)

by HelloDan

Without constructor, how comes destructor?

#include <iostream> using namespace std; class Singleton { public: static Singleton GetSingleton(); void DoSomething(); ~Singleton(); priv...

[6 replies] Last: ...so you are never actually constructing a Singleton object. I t... (by closed account z05DSL3A)

by goofacz

Virtual destructor

Hello! Me class derives from class, which doesn't provide virtual destructor. I declared virtual destructor in my class. Would object destruction work the sa...

[2 replies] Last: If Base does not have a virtual destructor and Derived (derived from B... (by jsmith)

by garob

convert between std::string and int

Hi I don't what the best way to convert between std::string and int. Can someone please post the function they use.

[5 replies] Last: #include <boost/lexical_cast.hpp> try { int x = boost::lexi... (by jsmith)

by poonninja

tic tac toe game

i have started a tic tac toe game. i can move the x around with the arrow keys.i dont know how to make it stay there when enter is pressed then create a new one...

[5 replies] Last: I only have experience with console applications, but recently I did a... (by meepokman)

by wtf

What is a good command line compiler?

I want a good, preferably small compiler to use, one preferably that doesn't have to be installed. Its already been suggested that its possible to use the c...

[12 replies] Last: Try digital mars. If I remember correctly one of the benefits it has i... (by garob)

by hwaterboys

Binary Tree Questions

Can someone please help me out. I am trying to get a the following: nodeCount (This works) leavesCount(Not counting correctly) SingleParentCount(Also not co...

[2 replies] Last: Okay, there's this little thing called the this pointer you need to ... (by helios)

by idojava

Vector initialization...

Hi, all, I am stuck on a problem and have tried different approaches, but none of them seem to make sense. Searching the boards hasn't yielded the answer, eithe...

[12 replies] Last: memcpy (&tmpCharBuff , "\0", 1); This makes no sense. First of all, y... (by helios)

by varsha

linked list and strings

hi.. can some1 plz tel me how do i store each character of a string in a linked list using C and not C++..

[3 replies] Last: insnode appears to create the list if it doesn't already exist, so the... (by kbw)

by nathanpc

Reading CSV Files

Hello, I'm learning C++ with the book C++, How To Program 5/e from Deitel and i like very much to develop file i/o programs, then i want to know how i c...

[5 replies] Last: Hello, Thanks to all, Bazzy because of the code and the links to i l... (by nathanpc)

by steinzfan

How do you use Classes/UML to model a simple database?

I had a similar assignment where the user chooses to be a customer (like an ATM), banker, or supervisor (both able to view customers, transactions, etc). How wo...

[6 replies] Last: Database Modelling in UML http://www.sparxsystems.com.au/downloads/... (by closed account z05DSL3A)

by farhan3d

Getting Crystal Report database field names in C++

Hey All, I was wondering if anyone knows how to get information from a Crystal Reports file, like the database field names, into your C++ program. Are there ...

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General C++ Programming - July 2009