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by: Oplec |
last post by:
Hi, I am trying to figure out the correct syntax for declaring a friend
function in a class template and then defining that member after the
class. The code example below is what I am trying to get to work
properly; it generates a link error.
Thank you, Oplec.
#include <cstdlib>
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by: Shea Martin |
last post by:
I am trying to use a system call which takes a function ptr. My
compiler won't compile the code if I give the system_call a ptr to a
class member function, A::func(). To combat this, I created an
function, xfunc(A a), which wraps A::func(). For this to work properly,
I need to make xfunc() a friend of class A.
I am getting compile warnings regarding the system call being passed a
function ptr, when it is expecting an extern "C"...
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by: Trevor Lango |
last post by:
What is the appropriate syntax for placing a friend function that includes
as one of it's parameters a pointer to the class object itself within the
template class?
I have the following:
//****************************************************
// testClass.h
//****************************************************
#ifndef TESTCLASS_H
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by: Bryan Parkoff |
last post by:
CMain Class is the base class that is initialized in main function. CA
Class is the base class that is initialized in CMain::CMain(). CMain Class
is always public while CA Class is always private. I have placed "friend
void CA::Run_A(void)" in CMain Class. CMain::Run() function attempts to
execute CA::Run_A(), but compiler shows an error saying that it is the
violation to access private function.
I don't understand why because friend...
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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: 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: Nike |
last post by:
The following code doesn't compile.
I have a requirement in my project to declare one template as a friend
function to another..
Can anyone suggest a way????
#include <iostream.h>
template <class B,class Cclass A; //forward declaration
template <class DBT_>
class D{
public:
friend class A<B,C>; //Error as B and C are not known as template
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by: jdurancomas |
last post by:
Dear all,
I'm trying to declare the operator++ to a nested class. The nested
class is not template but the container it is.
The code used in teh sample program is included bellow:
#include <iostream>
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by: Andy Champ |
last post by:
We have a class with something that, simplified, looks like this:
template <typename Tclass foo
{
T beyondAllReaching;
// In VC2005, this works OK
template <typename Ufriend void method(foo<Tl, foo<Ur);
// But VC2008 requires this
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by: farseerfc |
last post by:
Hi, everyone here loves C++;
As a student studying data structure, I'm writting a single list (with only
one pointer to identity the next node in its node struct) simulating
std::list like:
template <typename T, typename Allocclass slist {...};
Here Alloc accepts a std::allcator . And within the same namespace I wrote
its iterator:
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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: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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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: 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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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