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by: Edward Diener |
last post by:
Is there a way to override the default processing of the assignment operator
for one's own __value types ? I realize I can program my own Assign method,
and provide that for end-users of my class, but I would like to use
internally my own = operator for some of my value types, so I can say "x =
y;" rather than "x.Assign(y);".
The op_Assign operator seems impossibly broken since it takes __value copies
of the two objects. Perhaps there is...
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by: Pmb |
last post by:
I've been working on creating a Complex class for my own learning purpose
(learn through doing etc.). I'm once again puzzled about something. I can't
figure out how to overload the assignment operator.
Here's what I'm trying to do. I've defined class Complex as
class Complex {
friend ostream &operator<<( ostream &, Complex & );
public:
Complex( float = 0.0, float = 0.0 );
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by: gorda |
last post by:
Hello,
I am playing around with operator overloading and inheritence,
specifically overloading the + operator in the base class and its
derived class.
The structure is simple: the base class has two int memebers "dataA",
"dataB". The derived class has an additional int member "dataC". I am
simply trying to overload the + operator so that 'adding' two objects
will sum up the corresponding int members.
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by: pmatos |
last post by:
Hi all,
I'm overloading operator<< for a lot of classes. The question is about
style. I define in each class header the prototype of the overloading
as a friend. Now, where should I define the overloading of operator<<.
In the .cc of the respective class or in a file where I am overloading
operator<< for all classes?
Cheers,
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by: carlos |
last post by:
Curious:
Why wasnt a primitive exponentiation operator not added to C99?
And, are there requests to do so in the next std revision?
Justification for doing so:
C and C++ are increasingly used in low-level
numerical computations, replacing Fortran in newer projects.
Check, for example, sourceforge.net or freshmeat.net
But neither language offers a primitive exp operator.
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by: karthik |
last post by:
The * operator behaves in 2 different ways. It is used as the value at
address operator as well as the multiplication operator. Does this mean
* is overloaded in c?
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by: Jerry Fleming |
last post by:
As I am newbie to C++, I am confused by the overloading issues. Everyone
says that the four operators can only be overloaded with class member
functions instead of global (friend) functions: (), , ->, =. I wonder
why there is such a restriction.
Some tutorials say that 'new' and 'delete' can only be overloaded with
static member functions, others say that all overloading function should
be non-static. Then what is the fact, and why?
...
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by: y-man |
last post by:
Hi,
I am trying to get an overloaded operator to work inside the class it
works on. The situation is something like this:
main.cc:
#include "object.hh"
#include "somefile.hh"
object obj, obj2 ;
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by: sturlamolden |
last post by:
Python allows the binding behaviour to be defined for descriptors,
using the __set__ and __get__ methods. I think it would be a major
advantage if this could be generalized to any object, by allowing the
assignment operator (=) to be overloaded.
One particular use for this would be to implement "lazy evaluation".
For example it would allow us to get rid of all the temporary arrays
produced by NumPy.
For example, consider the...
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by: Wayne Shu |
last post by:
Hi everyone, I am reading B.S. 's TC++PL (special edition).
When I read chapter 11 Operator Overloading, I have two questions.
1. In subsection 11.2.2 paragraph 1, B.S. wrote "In particular,
operator =, operator, operator(), and operator-must be nonstatic
member function; this ensures that their first operands will be
lvalues". I know that these operators must be nonstatic member
functions, but why this ensure their first operands will...
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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: 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: 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: 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: 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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