Questions tagged [addressof]
95 questions
0
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When I add up in my pointer address it points to my array? Why? Reference and Dereference confusion C++
In this example,
I have an array of four elements. I have declared a pointer to integer which contains the address of array. Then i have displayed the address of 0th index in 3 different ways. Similarly, the address of 1st index is displayed in 3…
user1155921
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5 answers
How does these Pointer statements differ *p = &i , h = &j?
I've been trying to work with pointers and i've encountered this problem.
In this code .. p,h are two pointers ... i've equated *p = &i , h = &j ; and printed the values
my expectation was that *p will contain the address and p will have the address…
Akash Gutha
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4 answers
Pointers: a query about pointers
I'm learning C and C#. I'm learning about pointers and don't know what it means to combine the indirection operator and the address operator. What does it mean to combine the two?
Here is an example:
int *p, *q;
p = *&q;
somethingSomething
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2 answers
cpp newbie- how to convert values from string to ref (address of) variables
In C++
This is the function I am coding now-
insertobjectnames(std::string clsname, std::string objname)
Now within the above function I have to invoke another function that takes as input the same parameters as above 2, but as address of…
user2880330
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0
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1 answer
Converting AddressOf from VB6 to c#
In VB6 we have the below code.
g_CTimer.TimerID = SetTimer(0&, 0&, g_CTimer.Interval, AddressOf TimerProc)
The TimerProc method is as below
Sub TimerProc(ByVal hwnd As Long, ByVal uMsg As Long, ByVal idEvent As Long, ByVal dwTime As Long)
On…
Achyuth
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0
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2 answers
Visual basic 2008 issue with adding a method to my dynamic objects
I have searched for an answer to my question since last thursday. A lot of answers about my exact same question have been answerd in vb.net. However, I am working on Visual Basic 2008 and those two language seems to have differences that are for me…
0
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1 answer
Threading sub sending value
Hey all i have this being called:
Public Sub doStuff(ByVal what2Do As String)
Dim command As String = ""
If Trim(lanSent(1)) = "turnOffPC" Then
command = "r5"
ElseIf Trim(lanSent(1)) = "TurnOnPC" Then
command = "r3"
End…
StealthRT
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3 answers
Understanding complex pointer and address-of operators using *&*&p in C
Can any one explain how the printf is printing hello in the following?
#include
void main()
{
char *p;
p="hello";
printf("%s",*&*&p);
}
I know that *&p...means value in p, i.e the address of string "hello". What is happening in the…
Rohit
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vb.net threading.thread addressof passing variables
I am trying to pass some status from a IP call in a shared sub to a label on my form.
This is the current code that i am using:
Class Server
Public Shared Sub Main()
Dim aTcpMessaging As IMessagingSystemFactory = New…
StealthRT
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votes
2 answers
In which case I need ampersand in pointers?
I am trying to understand pointer to pointers and I can not understand why in first case I need (&) ampersand ( I receive a message [Error] cannot convert 'char*' to 'char**' in assignment )
and in the second case I don't need ampersand
first case…
vgag1997
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-1
votes
6 answers
what is the difference &p and *p_p in C?
I just studying pointers in C and I wondered what is the address of a pointer and after I searched on the Internet I wrote this piece of code.
#include
int main() {
int n = 60;
int *p = &n;
int **p_p = &p;
printf("%p\n",…
Ulaş Sezgin
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2 answers
Why does someNumber = rand() & 100 + 1; not produce an error?
I was attempting to generate a random number between (1 - 100), and the code to ran, but not doing what I wanted. I noticed I accidentally type &, instead of % with the rand() function, and the compiler did NOT give me an error. What exactly is…
Hawkbirdtree
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3 answers
Does address-of operator return address of an object referenced by the variable
This is different question from this one, as here I'm using object type struct, instead of a value 23....
I'm reading this chapter on pointers and it states the following:
The address of a variable can be obtained by preceding the name of a
…
Max Koretskyi
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votes
1 answer
Adding Handler using 'AddressOf'
When trying to add an event handler to a dynamically created button I get an an error:
Dim Itm As New Button
Itm.Name = "Itm" & i
Itm.Height = 62
Itm.Width = 159
Itm.Text = Temp(i, 0).ToUpper
Itm.Left = (F * 165)
Itm.Visible = True
Itm.BackColor =…
James.Net
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-1
votes
1 answer
Using & operator with char data type
Possible Duplicate:
Why is address of char data not displayed?
I was experimenting with ampersand operator and got stuck at this program :
#include
using namespace std;
int main() {
char i='a';
cout<<&i;
return 1;
}
I was…
Maverick Snyder
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