General C++ Programming - C++ Forum - August 2011 (Page 25)

Hi, When I use a copy constructor for my class for which one of the data members is an array, should I first delete *_data and then allocate is with new ? ...

[1 reply] : Your class should delete whatever it allocated in this instance . ... (by Disch)

by kemnet

Fnding Class Code

Hello. I was wondering if/ where i could find the class code in C++ example when you drag your data source view on a form, and it lets you scroll it with the na...

[no replies]

by NGen

IDE with Constant Autocomplete

After working with Xcode for two weeks straight I've been spoiled in a way. I've gotten used to (and have grown to love) the autocomplete-as-you-type feature in...

[4 replies] Last: StoneHeart you're my hero, thanks for the plugin (by NGen)

by Safi Rehman

error with my array

#include<iostream> #include<string> #include<iomanip> #include<cstdlib> using namespace std; const int max=20; class passenger { protected: char name ; cha...

[1 reply] : That makes sense: l_destination exists only in the searching() functio... (by kooth)

by vince1981

sieve of eratosthenes

I'm writing a code to calculate the sum of the primes below a given number. I've already written a brute force program that works perfectly but is slow, so I'm ...

[6 replies] Last: /* if (!sieve ) { c... (by ne555)

by dax

3D grid ray detection

Hi, I'm looking for some ideas for an algorithm that, very broadly, enumerates the 3D cells through which a ray passes (the cells must be in order). I have the ...

[1 reply] : If you want raycasting explained, see http://www.permadi.com/tutorial/... (by hamsterman)

by closed account GbX36Up4

What Do You Think?

[10 replies] Last: E.g in Java we can have interface ABC {...} syntax but we do not have... (by HenriK)

by holzdolph

any better solution than making a list of list of lists for my problem ?

Hey forum :) I´m working on the following problem: I have a 2D <bool> array, where 1 means the cell is solid and 0 it is liquid, so the domain can consist of ...

[2 replies] Last: Thanks for your ideas, and you are right, I dont need so many layers. ... (by holzdolph)

by russel01234

can you explain this?

what is stuck and operation on stuck in c++ thanks

[1 reply] : .. did you mean 'stack' ? (by hamsterman)

by ErrorExpert

operations on constatnt variables

#include<iostream> using namespace std; void fun( const int &k) { cout<<k; } int main() { const int i=10; int *p=(int*)&i; *p=15; cout<...

[2 replies] Last: I think this is what is happening, correct me if I am wrong: The 10 co... (by LB)

by mae38

Problem Calling a Virtual Function from a Multidimensional Array

Dear Fellow Programmers, Again, I have a little problem with nasty multidimensional arrays. I have a class, let's call it Base with a method virtual int ...

[6 replies] Last: obligatory link http://www.cplusplus.com/articles/G8hv0pDG/ (by hamsterman)

by eidge

Is there a way to set an iterator "one before" the begging?

//Verifying Candidates using the rest of the strings, removing those that are not present on any of untested strings. for(vector<string>::iterator cand_itr =...

[16 replies] Last: Ahah good point ;P Anyways this is going off-topic, soon enough some... (by eidge)

by Redbeard

Creating protable .exe files from my C++ code

Hello, I have a VS2010 C++ project which outputs a text file. I just want to use the executable that is developed by the compiler so that I can run it on...

[8 replies] Last: Aside 1. To get the actual, localized path of the user's document f... (by andywestken)

by Robertlzw

New sematics for C++ copy assignment operataor?

I came across with a book in which C++ copy assignment operator of a class becomes: const X &X::operator=(const X&); Is it correct? (I never saw anything l...

[7 replies] Last: I have to say, I've never found myself in the situation where I just ... (by helios)

by aimene1905

bibliothéque Imaibou pour amélioration graphique sur console

j'ai créer une bibliothèque open source qui permet de faire des améliorations graphique de la console pour le C++, voila les principales fonctionnalités: M...

[no replies]

by kemnet

Scrolling Rows in Database(forms)

Hello C++ X perts! im working on project where i want to write my own code to scroll a database. so im followed a tutorial. here:http://www.homeandlear...

[2 replies] Last: nouuu im working in C++ but i got that syntax from a Csharp site. but ... (by kemnet)

by JuDiNi

Upload Data to WebServer C++

Hi!, I am looking for libraries or better a code to upload data (.txt file) to a Webserver. This has username and password to access into the files. It is...

[2 replies] Last: "cryptlib" and "cURLpp" look very useful for that. Agile, thank you ... (by JuDiNi)

by nisarg shah

I want to make a database storage in a computer shop which does not get removed even after closing the program.

void entry() { clrscr(); textcolor(RED); gotoxy(32,4); cputs("CITY COMPUTERS"); gotoxy(5,8); cputs("Customer ID :"); gotoxy(5,10);...

[2 replies] Last: Actually, I think using a remote MySQL server would suffice here with ... (by closed account S6k9GNh0)

by kemnet

Scrolling Rows in Database(forms)

Hello C++ X perts!http://www.cplusplus.com/forum/thread.cgi?w=new&i=854 im working on project where i want to write my own code to scroll a database. so im ...

[no replies]

by Elena

OOP constructor problem

Hello I have the following code (here is just the "interesting" part): class A{ int x; public: A(int i=0):x(i) {} int get_x() { r...

[3 replies] Last: Thanks you very much for your replies! @dax, yes, there it was a mist... (by Elena)

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General C++ Programming - August 2011 (Page 25)