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by: Jacek Dziedzic |
last post by:
Hi!
A) Why isn't it possible to set a member of the BASE class in
an initialization list of a DERIVED class constructor (except for
'calling' the base constructor from there, of course)? I even
tried prefixing them with BASE:: but to no avail. Still it's
ok when I set them in the construtor body, not the init list.
Does this mean that it's a small advantage of the initialization
inside the constructor over initialization in the init...
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by: DanielBradley |
last post by:
Hello all,
I have recently been porting code from Linux to cygwin and came across
a problem with static const class members (discussed below). I am
seeking to determine whether I am programming non-standard C++ or if the
problem lies elsewhere.
To summarize static const class members are not being accessed properly
when accessed from a DLL by another external object file (not within the
DLL). It only occurs when the static const...
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by: JustSomeGuy |
last post by:
I have a class that has a static member variable.
string x;
x should never change during use and should be intialized to "abcd".
How does one do this?
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by: Nolan Martin |
last post by:
How would I go about calling a function before the main function is called?
The function needs to be called multiple times from different locations.
I have something like this working but it is more of a hack than anything...
---FOO.cpp---
bool func() {
dostuff;
return 0;
};
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by: Anton Pervukhin |
last post by:
Hi everybody!
I have a small problem regarding the initialization of pointer to the
file stream under some conditions.
Imagine a class which has a pointer to output file stream and some
additinional methods to deal with it, i.e. open/close/write:
classA {
private:
const std::auto_ptr<std::ofstream> filePtr;
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by: Jacek Dziedzic |
last post by:
Hello!
Suppose I have a class Foo that defines a default c'tor
that initializes some data using an initialization list:
Foo::Foo() : member1(0), member2(0), member3(NULL), member4(20)
// and so on, quite a few members
{}
and does nothing else.
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by: utab |
last post by:
Dear all,
Can somebody direct me to some resources on the subject or explain the
details in brief? I checked the FAQ but could not find or maybe missed.
Regards,
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by: Steve Folly |
last post by:
Hi,
I had a problem in my code recently which turned out to be the 'the "static
initialization order fiasco"' problem
(<http://www.parashift.com/c++-faq-lite/ctors.html#faq-10.12>)
The FAQ section describes a solution using methods returning references to
static objects.
But consider:
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by: Jess |
last post by:
Hello,
I tried several books to find out the details of object
initialization. Unfortunately, I'm still confused by two specific
concepts, namely default-initialization and value-initialization. I
think default-init calls default constructor for class objects and
sets garbage values to PODs. Value-init also calls default
constructor for class objects and sets 0s to POD types. This is what
I've learned from the books (especially...
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by: ssylee |
last post by:
I'm not sure if I can initialize members of a struct the lazy way. For
example, let's say I have a struct defined as below:
typedef struct _ABC
{
BOOL A;
BOOL B;
BOOL C;
} ABC;
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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...
|
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: 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: 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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