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by: Alicia |
last post by:
Hello,
I am trying to figure out how to call an overloaded operator<<
inherited from a base class.
#ifndef PHONECALL
#define PHONECALL
#include "time.h"
#include "interval.h"
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by: Alex Vinokur |
last post by:
Member operators operator>>() and operator<<() in a program below
work fine, but look strange.
Is it possible to define member operators operator>>() and operator<<()
that work fine and look fine?
// --------- foo.cpp ---------
#include <iostream>
using namespace std;
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by: Sensei |
last post by:
Hi.
I have a problem with a C++ code I can't resolve, or better, I can't see
what the problem should be!
Here's an excerpt of the incriminated code:
=== bspalgo.cpp
// THAT'S THE BAD FUNCTION!!
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by: lutorm |
last post by:
Hi everyone,
I'm trying to use istream_iterators to read a file consisting of pairs
of numbers. To do this, I wrote the following:
#include <fstream>
#include <vector>
#include <iterator>
using namespace std;
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by: bluekite2000 |
last post by:
Here A is an instantiation of class Matrix. This means whenever user
writes
Matrix<float> A=rand<float>(3,2);//create a float matrix of size 3x2
//and fills it up w/ random value
cout<<A;
the following will be printed
A
3
2
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by: Carlo Capelli |
last post by:
I found a change in the following code, that behaved
correctly in VC++ 6.
#include <strstream>
using namespace std;
void main()
{
char x;
ostrstream(x, 100) << "pippo" << "pluto" << ends;
// here x contains "004400C8pluto"
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by: Harry |
last post by:
Hi all,
I am writing a logger program which can take any datatype.
namespace recordLog {
enum Debug_Level {low, midium, high};
class L {
std::ofstream os;
Debug_Level cdl;
const Debug_Level ddl;
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by: Amadeus W. M. |
last post by:
What is the difference between
friend ostream & operator<<(ostream & OUT, const Foo & f){
// output f
return OUT;
}
and
template <class X>
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by: Eric Lilja |
last post by:
>From a book, I know the following is true for the comparison operators:
An overloaded operator that is a class member is only considered
when the operator is used with a *left* operand that is an object
of that class.
And is that also the reason why if you use class member functions for
operators << and >you have to write:
someclass << cout;
someclass >cin;
?
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by: johnmmcparland |
last post by:
Hi all,
when I write a subclass, can I inherit its superclass' << operator?
As an example say we have two classes, Person and Employee.
class Person has the << operator;
/**
|
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...
|
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...
|
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...
|
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: 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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