Lets say I have a situation like this:
public class a {
* * * * public a () {
* * * * * * * * //...
* * * * }
** * * * public a (int i) {
* * * * * * * * //...
* * * * }
}
Is there a way to call a() from within a(int i)? Basicly what I'm trying
to achieve is to put all the common code in a (), and in a(int i) just
initialize what I can with the i parameter and than call the a()
construcotor. Would that be possible?
--
"Stara boljka se leci starim lekom...
Dabome vinom, ta nebi valjda mlekom?" 5 1284
Nikola Skoric wrote: Lets say I have a situation like this:
public class a { public a () { //... } public a (int i) { //... } }
Is there a way to call a() from within a(int i)? Basicly what I'm trying to achieve is to put all the common code in a (), and in a(int i) just initialize what I can with the i parameter and than call the a() construcotor. Would that be possible?
no, you want do do something like this:
public class a
{
public a()
{
function_call() ;
}
public a(int i)
{
// stuff with i;
fuction_call();
}
private void function_call()
{
// the common functionality of a() and a(int)
}
"Nikola Skoric" <ni*******@net4 u.hr> wrote: Is there a way to call a() from within a(int i)?
public a(int i) : this()
{
// Code dealing with i, to follow the () constructor
}
P.
Pat,
Wondering why can not we call default ctor from a(int i) ?
Thanks.
"Pat Richey" <ri****@uiuc.ed u> wrote in message
news:%2******** **********@TK2M SFTNGP10.phx.gb l... Nikola Skoric wrote: Lets say I have a situation like this:
public class a { public a () { //... } public a (int i) { //... } }
Is there a way to call a() from within a(int i)? Basicly what I'm trying to achieve is to put all the common code in a (), and in a(int i) just initialize what I can with the i parameter and than call the a() construcotor. Would that be possible?
no, you want do do something like this:
public class a { public a() { function_call() ; }
public a(int i) { // stuff with i; fuction_call(); }
private void function_call() { // the common functionality of a() and a(int) }
Nikola Skoric wrote: Lets say I have a situation like this:
public class a { public a () { //... } public a (int i) { //... } }
Is there a way to call a() from within a(int i)? Basicly what I'm trying to achieve is to put all the common code in a (), and in a(int i) just initialize what I can with the i parameter and than call the a() construcotor. Would that be possible?
Only if you want to call it at the very beginning. Attaching " :
this()" to the end of the constructor method instructs the compiler to
call the overloaded constructor with the proper signature. The second
constructor is called *before* the current constructor. It works
similar to how "public a() : base() " works.
public class a {
public a()
{
}
public a ( int i ) : this()
{
this.i = i;
}
}
--Mike
Try this...
public a() {
}
public a(int I) : this.a() {
}
Chang wrote: Pat,
Wondering why can not we call default ctor from a(int i) ?
Thanks.
"Pat Richey" <ri****@uiuc.ed u> wrote in message news:%2******** **********@TK2M SFTNGP10.phx.gb l...
Nikola Skoric wrote:
Lets say I have a situation like this:
public class a { public a () { //... } public a (int i) { //... } }
Is there a way to call a() from within a(int i)? Basicly what I'm trying to achieve is to put all the common code in a (), and in a(int i) just initialize what I can with the i parameter and than call the a() construcotor . Would that be possible?
no, you want do do something like this:
public class a { public a() { function_call (); }
public a(int i) { // stuff with i; fuction_call( ); }
private void function_call() { // the common functionality of a() and a(int) } This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
by: Murat Tasan |
last post by:
i have a quick question... is there a way to obtain the reference to the
object which called the currently executing method?
here is the scenario, i have a class and a field which i would like to
populate with a reference to the object that constructed this current
object. i would attempt to accomplish this by setting the appropriate
field from within the constructor...
i figured it might be obtainable from the stack trace, but that...
|
by: Jerry Krinock |
last post by:
I've written the following demo to help me understand a problem I'm having
in a larger program. The "main" function constructs a Foo object, and then
later "reconstructs" it by calling the constructor again. In my larger
program, I find that the member variables don't get re-initialized when
"reconstructed". I don't have that problem in this demo, but the second
time the constructor is called, its "this" points to a different location.
...
|
by: Girish Shetty |
last post by:
> Hi All,
>
> Some Strange thing with C++ Constructer !!
> I never knew that we can initialize an object / a variable more than once
> using C++ Constructer till I started doing some RnD coding!!!!
|
by: Justin |
last post by:
Hello, first time posting.
If I have a base class and a derived class, is there only one way to
call the base constructor?
i.e. Is this the only way I can call the base constructor (presuming
the base constructor took an int):
Derived::Derived(int a) : Base(a)
|
by: Mike Labosh |
last post by:
Greetings, all:
I want to invoke one constructor from another to gain code reuse.
In the snip below, I want my second constructor to pass its first argument
to the first constructor so that the first constructor can set the Provider
property and invoke the resetConnection() method first, before the second
constructor assigns the connection string to the Connection property, but I
can't seem to work out the syntax.
| |
by: Nicolas |
last post by:
Hi,
How can one call a constructor in the same class as the constructor itself ?
Thanks.
|
by: Sathyaish |
last post by:
How does a constructor of one class call another of the same class?
When would this mechanism make sense or be required?
PS: Two instances I saw are:
(a) While using the Singleton pattern
(b) While using the Factory pattern
|
by: lars.uffmann |
last post by:
I have to work on a rather big project that a bunch of people wrote and
that has no useful documentation at all, my C++ has rusted in a bit,
now I stumbled over a constructor that looks something like the below
and have no idea what to do with it :)
inheritedClass::inheritedClass ()
: originalConstructor ()
, m_cells(cells), m_srfcs(srfcs)
{
|
by: newbie |
last post by:
This is a snippet from C++ FAQs, which I have never done--- when I do
such a thing, I would declare function used by constructor ( in this
example, init() ) as static. But I do understand that it would be
great if the following practice is valid.
But by OO concept, it seems not to very good because init() belongs to
an object, which hasn't be constructed.
Can you give any comment on my question?
|
by: =?Utf-8?B?UVNJRGV2ZWxvcGVy?= |
last post by:
I have a C# logging assembly with a static constructor and methods that is
called from another C# Assembly that is used as a COM interface for a VB6
Application. Ideally I need to build a file name based on the name of the
VB6 application. A second choice would be a file name based on the # COM
interface assembly. I have tried calling Assembly.GetCallingAssembly() but
this fails when I use the VB6 client. Is there a way to get this...
|
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...
| |
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,...
|
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: 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();...
|
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...
| |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
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...
| |