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by: Andy Jarrell |
last post by:
I'm trying to inherit from a specific class that has an overloaded operator. The problem I'm getting is that certain
overloaded operators don't seem to come with the inheritance. For example:
// TestA.h ---------------------------------------
#include <iostream>
enum Aval
{
FIRST_VALUE,
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by: Thomas Matthews |
last post by:
Hi,
My objective is to add enable & disable functionality to
the ofstream class. I want to have a log file where I
can disable and enable output to it. When my first
tests pass, I want to disable the annotations written
to the log file, but enable the text from the newer
test cases.
I've searched the C++ newsgroups and the FAQ-Lite
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by: Noah Coad [MVP .NET/C#] |
last post by:
How do you make a member of a class mandatory to override with a _new_
definition? For example, when inheriting from
System.Collections.CollectionBase, you are required to implement certain
methods, such as public void Add(MyClass c).
How can I enforce the same behavior (of requiring to implement a member with
a new return type in an inherited class) in the master class (similar to the
CollectionBase)?
I have a class called...
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by: Maheal |
last post by:
I have been trying to Serialize an object that is the child of another
object which is also serializable. Here is the simplified scenario
(assume missing code is correct):
class One : ISerializable {
int x;
int y;
One() {}; // constructor
One(SerializationInfo i, StreamingContext c) { // deserialization
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by: Opa |
last post by:
I have tried for two days to solve this problem with no luck.
I have a singleton class which has some events declared. When I inherit
from this class the events don't seem to come along with it.
The event in the singleton class always evaluates to null even when I cleary
subscribe to it.
Does anyone have some sample code of how to do this, or is this not possible.
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by: G. Purby |
last post by:
What is the proper way of defining a class that inherits from a base class
that has no constructor with 0 arguments?
The following code generates compiler error CS1501, "No overload for method
'BaseClass' takes '0' arguments".
class BaseClass
{
public BaseClass(double x)
{
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by: Michael Carr |
last post by:
Does anybody know how to inherit from a class with a private constructor? I
am trying to inherit from DataRow as follows:
public class MyDataRow : DataRow
{
private MyDataRow()
{
}
}
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by: Chet Cromer |
last post by:
I am creating a set of base classes and sub classes to use throughout a
program I'm developing. The base class represents a generic "lookup
table" from my database that contains lists of things like
manufacturers, makes, modes, etc. of cars. I have created a generic
"datacollection" class and a generic "dataobject" class to represent the
table and the rows within that table as a collection of objects with
generic properties for...
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by: AalaarDB |
last post by:
struct base
{
int x, y, z;
base() {x = 0; y = 0; z = 0;};
base(int x1, int y1, int z1) {x = x1; y = y1; z = z1;};
};
struct intermediate1 : public virtual base {};
struct intermediate2 : public virtual base
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by: l.s.rockfan |
last post by:
Hello,
how do i have to call an inherited, templated class constructor from the
initializer list of the inheriting, non-templated class constructor?
example code:
template<typename T>
class A
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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: 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: 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: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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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: 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: 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: 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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