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by: Elementary Penguin |
last post by:
Is there a left add unary operator ( or do I have to overload one ) ?
For example:
string s1 = "A";
s1 += "B";
Console.WriteLine( s1 )
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by: Anjali M |
last post by:
#include <stdio.h>
int main()
{
int number = 10;
printf("Number is: %d\n", number);
printf("Sizeof of number is: %d\n", sizeof(number++));
printf("Number now is: %d\n", number);
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by: Anoob |
last post by:
Can we consider () unary operator when calling a function, in exps eq.
f(), ( 1 + 2). But when we call function f( 10 ) it is a binary
operator. Even if we pass f( 10, 20) as we are using , operator there
one operand will be there for ()?
And Unary operators like !, +, -, ~, ... are said to be having
associativity right to left which means that we can write, (but not
allowed)
1. 2!
2. !2
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by: Greenhorn |
last post by:
Hi,
Those relational operators have operands of all numerical type
int,char,float etc.
They also are working for character arrays. Whats the logic behind
their working. Is the length of the array compared first and then each
character compared with corresponding character.
{
const char msg = "msessage}", ch = "Za";
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by: dspfun |
last post by:
I'm trying to get a good understanding of how unary operators work and
have some questions about the following test snippets.
int *p;
~!&*++p--;
It doesn't compile, why? The problem seems to be the ++, the compiler
says: "Error: invalid l-value in increment".
int i = 10;
~!*&i++;
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by: Jim Michaels |
last post by:
friend fraction& operator+=(const fraction& rhs);
fraction.h(64) Error: error: 'fraction& operator+=(const fraction&)'
must take exactly two arguments
I practically pulled this out of a C++ book (except for the "friend").
can someone explain why GCC is giving me problems here?
for a += or similar operator, what does a proper declaration look like
and what are its arguments for?
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by: JoseMariaSola |
last post by:
How may operators and operands does (typename) expression has?
I'd say one operator, the cast operator, and two operands: typename
and expression.
But everywhere I read, cast is categorized as an unary operator. Why
is that? Is it just a syntax cotegory?
Thanks.
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by: JanW |
last post by:
Somewhat a C++ beginner, I'm trying to make a general test function
that could test unary operators (or methods) of an object of any class.
Arguments are a member-pointer to the function, a single input
argument of some type for that function, and the expected result of
some type. Then it tests if the result is as expected, and does some
logging of the results (pass, fail) etc.
Well, the template "mess" does not quite work out.
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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: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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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: 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: 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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