Pointer to acess array .. i wanna acess to 2nd place in the array with ++ operator it doesn't work??

Question

#include <iostream>
using namespace std;

int main()
{
int numbers[4]={10,20,30,40};
cout<<numbers[3]<<endl;
cout<<*numbers<<endl;
numbers ++;
cout<<*numbers<<endl;
}

Answer 1

In that case, msg and ptr both points to the same memory location (beginning of the "hello" string).
However, ptr is a pointer data-type, and msg is an array-datatype, and that makes all the difference : you cannot increment an array, since it has to be a constant value.
On the contrary, a pointer doesn't have to be constant, and you can increment it.

Answer 2

Check this:

https://code.sololearn.com/cjGlTF5WW4ir/?ref=app

Answer 3

Ah. Nevermind my question

Is there any difference between i++ and i+=1 or i=i+1 in its deeper function?

Answer 4

Even if an array is basically a pointer, it does not behave totally like pointers : you cannot perform increment / decrement on it.

However, you can do :
*(number + n)

[Edit]
number[n] // or [n]number
Is syntax sugar for
*(number + n)

Answer 5

Why should this work?

i=1
i++
numbers[i]

Answer 6

Why increment work in charcter array like this
Char msg[ ]="hello";
Ptr=msg;
Ptr++;
*ptr='a';
It will be hallo

Answer 7

Nivid , i am beginner so i think no difference or what?

Answer 8

Oh sorry i misunderstand increment done to pointer "ptr"which is firstly assigned to array
Thank you all 💚