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by: Der Andere |
last post by:
I've got a problem concerning the << operator. Although I've declared it as
a friend function it cannot access the private member of the class AVLtree.
Some code:
------------------
class AVLtree
{
public:
friend ostream& operator << (ostream& os, AVLtree& t){};
.... some unimportant stuff ...
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by: Adam Parkin |
last post by:
Hello, all I'm having a problem with friend functions in a templatized Queue
class I'm writing using linked lists. The problem is that I can't get the
friend function to be able to access private data from the class. Here's
the gist of the code:
template <class T>
struct NodeType
{
T data;
NodeType<T> * link;
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by: Srini nandiraju |
last post by:
Hi folks,
I am trying to implement a friend class and the following is what I did.
Please scroll down.
/***************** CODE **********************************/
class BKP
{
private:
int nVar;
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by: Gactimus |
last post by:
Hey again,
I am working my way through the book "C++ Primer Fourth Edition".
I am trying to run a program out of the book using Microsoft Visual C++
version 6 and I am given the error message:
: error C2248: 'hours' : cannot access private member declared in class 'Time'
: error C2248: 'minutes' : cannot access private member declared in class 'Time'
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by: Samee Zahur |
last post by:
Question: How do friend functions and static member functions differ in
terms of functionality? I mean, neither necessarily needs an object of
the class to be created before they are called and either has access
only to static members of the class (ie. assuming no object of the
class is in scope - neither by arguments recieved nor by local
declarations). Any static member function like this:
//accessing static member i
static void...
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by: hartley_aaron |
last post by:
Hi,
What does it mean when VS automatically adds a line like this to code
of my form:
Friend WithEvents Label1 As System.Windows.Forms.Label
Also, I noticed a modifier property for each control and the default is
Friend. When modifier is set to Friend, I can access the control from
anywhere with the application, while if it is set to private it can
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by: Philip Potter |
last post by:
I have a graph data structure. It goes something like this:
class GraphNode {
private:
friend class Graph;
// successor GraphNodes stored as indices of the Graph's array
int value;
int next1, next2;
};
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by: Sunny |
last post by:
Hi All,
In C++ , if a function or class is declared friend, then where is that
information stored? How does friend function get access to private
data of a Class?
Thanks
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by: Immortal Nephi |
last post by:
I design a class for general purpose. I do not allow a client to read
or modify interface and implemention. I allow them to write a new non-
member function outside of class' interface and implmention. The
problem is that non-member function cannot access private data member.
The friend keyword is not the solution. I am aware that friend
keyword allows the non-member function to access private data member.
If you define more than...
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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