Questions tagged [pointer-address]
27 questions
13
votes
5 answers
delphi pointer address
In Delphi:
How do I get the address (0x2384293) a pointer points to?
var iValue := Integer;
iptrValue := PInteger;
implementation
procedure TForm1.Button1Click(Sender: TObject);
begin
iptrValue := @iValue;
iValue := 32342;
//Should…
Acron
- 1,378
- 3
- 20
- 32
8
votes
3 answers
Goto a specific Address in C
How can I JMP to a specific address in C?
I want to use
goto 0x10080000
This is not working, is there other way I can change the address of Program Counter??
Rgarg
- 496
- 3
- 6
- 13
7
votes
2 answers
Getting the address of a pointer
My apologies, I know there are a million questions on pointers, arrays etc. although as basic as this is I just can't seem to find anything pointing (ha ha!) to an answer.
I've got a pointer that is initialised to point to a chunk of memory, I…
R4D4
- 1,382
- 2
- 13
- 34
6
votes
5 answers
Is the order of memory addresses of successively declared variables always descending?
why does the hexadecimal value of pointer address returned is always in decreasing order?
for example here int a was declared before int d, so it's address always comes out to be greater than d, and same for &b,&e and &c,&f, I want to know that is…
Ashwini Chaudhary
- 244,495
- 58
- 464
- 504
2
votes
2 answers
CS50 recover, when to use buffer and &buffer?
I am solved the pset4 recover in the CS50. Although I solved the problem, I am confuse between "buffer" & "&buffer". Please pay attention to "LINE AAAAA" & "LINE BBBBB".
#include
#include
#include
// New type to…
Consxious
- 53
- 6
2
votes
1 answer
iOS: Setting properties
When I'm setting a property with an object that is currently in a retained NSArray, will it only store the pointer (light-weight), or will it copy the contents to the property?
From what I know, it seems like it would only assign the pointer, but…
RileyE
- 10,874
- 13
- 63
- 106
1
vote
3 answers
How are the addresses given to pointer variables? Do they follow any pattern?
#include
int main()
{
char ch, *p1, **p2, ***p3, ****p4;
ch='a';
p1=&ch;
printf("%c %d %c\n", ch, p1, *p1);
p2=&p1;
printf("%d %d %c\n", p2, *p2, **p2);
p3=&p2;
printf("%d %d %d %c\n", p3, *p3, **p3, ***p3);
…
user9749684
1
vote
1 answer
Difference between void* and char*
char srch(char x[],char k){
int i=0;
while(x[i]!='\0')
{
if(k==x[i])
{
const char *h=&(x[i]);
const void *l = h;
cout<<"\n\nTHE CHARACTER "<
Tarun Bisht
- 121
- 13
1
vote
1 answer
Add an adress to an array of pointers C
I have to write a function that will add an adress at the end of an array of pointers. Here is what I've done. I want to know if I did right and if not, please correct me.
#include
#include
#define MAX 3
void add( int…
Vlad Dohotaru
- 31
- 2
1
vote
1 answer
How to get address to use reflect field?
I got address of a.two.
I want to get same address to use reflect field.
package main
import (
"fmt"
"reflect"
)
type A struct {
one int
two int
three int
}
func main() {
a := &A{1, 2, 3}
fmt.Println(&a.two)
…
Ken
- 15
- 3
1
vote
2 answers
Weird Pointer Address for Individual Struct Data Member
I observe some weird behavior today , the code is as follow :
The Code :
#include
struct text
{
char c;
};
int main(void)
{
text experim = {'b'};
char * Cptr = &(experim.c);
std::cout << "The Value \t: " << *Cptr <<…
caramel1995
- 2,968
- 10
- 44
- 57
1
vote
3 answers
Assigning a pointer in a struct to a variable
This program is supposed to create a dynamic memory vector. I'm pretty sure I'm using malloc correctly. My real problem is some syntax with pointers, particularly a pointer inside a struct.
I'm trying to access the address of an int pointer inside…
PilHliP
- 21
- 1
- 1
- 4
1
vote
5 answers
How can pointer addresses have different lengths?
I just executed this code example:
int *i = (int*) malloc( sizeof(int) );
printf( "%p, %p\n", &i , i );
and this is what I got:
0x7fff38fed6a8, 0x10f7010
So I wonder why is the second address shorter than the first one?
math
- 8,514
- 10
- 53
- 61
0
votes
2 answers
Wanting to truncate address for clarity not working as expected
Wanting to truncate addresses for clarity.
Not looking for improved code,
just why the hex code subtraction does't seem to work properly.
First result with 'zero' being subtracted from 'cname' and 'arptr':
address of 'cname' is 0x7fff5fbff720
and…
Joel
- 197
- 1
- 10
0
votes
3 answers
Changing pointer address - function
I have problem with pointers.
This is working fine -
int main(void){
char *w;
w = calloc(20, sizeof(char));
w = "ab";
printf("%c",*w);
w = w + sizeof(char);
printf("%c",*w);
return 0;
}
but if i use function…
kejmil01
- 95
- 2
- 7