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by: Victor Irzak |
last post by:
Hello,
I have an ABC.
it supports:
ostream & operator <<
I also have a derived class that supports this operator.
How can I call operator << of the base class for derived object??? Is it
at all possible?
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by: Christopher Benson-Manica |
last post by:
This is starting to seem ridiculous to me :(
#include <streambuf>
#include <iostream>
class
TWFileStream : public std::streambuf
{
private:
char cbuf;
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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: waitan |
last post by:
#include <algorithm>
#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <sstream>
#include <iterator>
#include <iomanip>
using namespace std;
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by: silversurfer2025 |
last post by:
Hello,
I am currently trying to derive a class from ostream (which is giving
output to my GUI), such that I can give my methods either std::cout or
my own outputstream-class to be used as output stream.
Unfortunately, I get a runtime error: "segmentation fault" each time I
am using the overloaded << function but cannot find the mistakt.. Maybe
somebody hwo is more of n expert than me (which shouldn't be too hard)
knows what to change?
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by: toton |
last post by:
Hi,
I want to have a vector like class with some additional functionality
(cosmetic one). So can I inherit a vector class to add the addition
function like,
CorresVector : public vector<Corres>{
public:
void addCorres(Corres& c); //it do little more than push_back
function.
}
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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;
/**
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by: syang8 |
last post by:
Any one can specify the problem of the following code? The compiling
error is on the friend function. If the base class is not inherited
from ostream, or I just remove the friend function from the base
class, the code will compile.
-------------------------------------------------------------------------
#include <iostream>
template<class Tclass base;
template<class Tstd::ostream& operator<< (std::ostream&, base<T>&);
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by: AJG |
last post by:
Hi there. I am using a library called SOCI that has a method to set a
stream which it uses to log SQL queries. The signature is as follows:
void setLogStream(std::ostream *s);
This works great when used with something like
setLogStream(&std::cerr). However, I would like to add more context to
the query logged. Specifically, I'd like to add the thread ID. So,
instead of the query logged looking like:
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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: jinu1996 |
last post by:
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The Art of Business Website Design
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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: 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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by: bsmnconsultancy |
last post by:
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