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I meant immediately is always immediately no matter when you read it. 
«_Superman_»
I love work. It gives me something to do between weekends.
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Use of Add time. 
Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )
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sonuchill, this is your professor writing.
See me before the start of the next class.
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Pressure sometimes really helps!!!
«_Superman_»
I love work. It gives me something to do between weekends.
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Hi everyone. I have a rather simple(or so i thought) problem. I cant seem to pass, and recieve a pointer to a list.I need access to this list so i can add a newly created object(of the class sphere) into it!
I am calling a method of a class Sphere like this:
class sphere{
int id, promjer, x, y;
sphere(int idd, int ppromj, int xx, int yy, std::list<sphere> *llist_of_classes)
: id(idd), promjer(ppromj), x(xx), y(yy){
llist_of_classes.push_back(this);
}
std::list<sphere> list_of_classes;
void main(){
...
sphere Ball(1,2,3, &list_of_classes);
}
I get the 'cannot convert paramater 5 from..to..' error msg. Does anyone have any idea how to solve this problem?
Or more generally, how do i pass and recieve pointers to std::list?!
thx!
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Isn't std::list a template, doesn't it need template arguments (type of list elements and such)? What is the exact error message you get?
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <
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Yes it does, the code i supplied was not actual! for which i am sorry. Check out the code in an answer to a poster below!
thx!
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Ok, sorry for the nitpicking. I believe your problem is that you should use llist_of_classes->push_back(this); instead of llist_of_classes.push_back(this); in the constructor of your sphere since it is a pointer not the object (or a reference to the object) itself.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <
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i've tried before, and this is what i've got:
error C2664: 'std::list<_Ty>::push_back' : cannot convert parameter 1 from 'sphere *const ' to 'const sphere &'
but it does make sense what you are saying, the solution will probably have the '->'
thanks!
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Do you want to put pointers in that list? If your answer is yes then you probably need to change the template parameter for the std::list (something like std::list<my_class*> instead of std::list<my_class> i guess), if no, then you probably need to use ...pushback(*this); instead of pushback(this).
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <
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You are right! i finally got it to work
the solution:
llist_of_classes->push_back(*this);
Thank you!
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 No probs, glad i could help.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <
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Firstly revise your post: you can't see any of the < or > characters or what's between them. Now to your problem, the constructor to your class looks like this:
sphere(int idd, int ppromj, int xx, int yy, std::list<sphere> *llist_of_classes)
That's four ints and a pointer to a std::list.
The code your having problems with looks like this:
Member 3885283 wrote: sphere Ball(1,2,3, &list_of_classes);
Here you're passing three ints and a pointer to a std::list.
Steve
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First off, thanks for the reply. Now to the code. This is the actual code i should have posted earlier, this is the actual full code:
I am not sure what you mean by not being able to see whats between the <> and the brackets themselves? what am i doing wring?
#include "stdlib.h"
#include "stdio.h"
#include "Sphere.h"
#include <list>
extern std::list<sphere>list_of_classes;
extern std::list<sphere>::const_iterator iterator;
#include <list>
class sphere{
public:
int id;
int promjer;
int x;
int y;
sphere(int idd, int ppromj, int xx, int yy, std::list<sphere> *llist_of_classes) : id(idd), promjer(ppromj), x(xx), y(yy){
llist_of_classes.push_back(this);
};
};
#include "sphere.h"
#include "util.h"
std::list<sphere>list_of_classes;
std::list<sphere>::const_iterator iterator;
void main(){
sphere objekt(1,2,3,4,&list_of_classes);
for(iterator=list_of_classes.begin(); iterator!=list_of_classes.end(); ++iterator)
{
printf("kugla:%d, promjer: %d, x: %d, y: %d\n",iterator->id, iterator->promjer, iterator->x, iterator->y);
}
getchar();
}
this code generates C2228:left of '.push_back' must have class/struct/union <-3times
This is the entire literal code.
All i need is a way to correctly pass a pointer to the list, add the newly created sphere object in its constructor into the list, and thats it!
Anyone spot the problem?
thank you!
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Avion85 wrote: I am not sure what you mean by not being able to see whats between the <> and the brackets themselves? what am i doing wring?
You need to escape the < by replacing it with < - easiest way is to tick the 'Encode HTML tags when pasting' checkbox below the Text: field when pasting code into a message.
As to your problem...
llist_of_classes.push_back(this);
llist_of_classes is a pointer, not a reference or a value. So, the dot operator won't work with it - use the ->operator!
llist_of_classes->push_back(this);
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Thank you all for the solution! it finally works, and this is it:
sphere(int idd, int ppromj, int xx, int yy, std::list<sphere> *llist_of_classes) : id(idd), promjer(ppromj), x(xx), y(yy){
llist_of_classes->push_back(*this);
}
sphere objekt(1,2,3,4,&list_of_classes);
This forum is awesome.A fact.
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Hi,
How to register a window of Dialog Based Application?
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U can do the registration in 'InitInstance' method of Application derived class(before 'DoModal' of the main dialog)
WNDCLASS wc = {0};
wc.style = CS_BYTEALIGNWINDOW|CS_SAVEBITS|CS_DBLCLKS;
wc.lpfnWndProc = DefDlgProc;
wc.cbWndExtra = DLGWINDOWEXTRA;
wc.hInstance = m_hInstance;
wc.hIcon = LoadIcon(IDR_MAINFRAME);
wc.hCursor = ::LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
wc.lpszClassName = <Specify the class name here as well as in .rc>
ATOM cls = RegisterClass(&wc);
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i need help for code for fast algorithm to compute Walsh Hadamard coefficient
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What is your trouble with?
What have you done, so far?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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i have problem in calculation of value
w(k+1,b)=(w(k,b)+w(k+1,2b),w(k,b),w(k+1,2b))
how i write this in C
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ahmedbhatti wrote: w(k+1,b)=(w(k,b)+w(k+1,2b),w(k,b),w(k+1,2b))
It strongly depends on the meaning of such expression, I suppose...
I.e. what is w(k,b)? What is (w(..),w(..),w(..))?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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Assalamo 3aliko
I need c++ program for OFDM techniques in WIMAX system
pleas if any one have it send it for me
thanks a lot
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rent-a-coder looks like a viable solution.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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