Question about pointers in C++. A variable assigned to a pointer will always go "&Variable" in the code??

Question

C++ / C#

Description of the issue:
When declaring a pointer and a variable

int* pPointer = 0;
int x = 1;
pPointer  = &x;

Then it is mandatory to always assign the symbol & to the variable if I call it, for example: The
cout << &x ;
question may be stupid, but I asked it for the sake of interest.
Thank you for your attention.

Answer 1

The question is really stupid. Read what the & does in front of the variable name - and you will find the answer to your question there.
And if you answer directly - no, not always.

Answer 2

The & in front of the variable is the address.
The analogy with the address as with the coordinates of a physical object works quite well. You can write down the coordinates on a piece of paper and get a "pointer". If you write down the coordinates of the place where you store the first sheet, then you will get a pointer to a pointer. To simply copy a pointer, you do not need to take its address.

int apple = 1;
int* poinerToApple = &apple;
//просто скопируем указатель
int* poinerToApple2 = poinerToApple;
//ожидаемо оба указывают на одно значение
//assert покажет что условие верно
assert(*PointerToApple == *PointerToApple2); 
assert(*PointerToApple == apple);
assert(*PointerToApple2 == apple);


//так получим указатель на указатель
int** poinerToPointerToApple = &poinerToApple;
int** poinerToPointerToApple2 = &poinerToApple2;

//разные указатели имеют разные адреса
assert(poinerToPointerToApple2 != poinerToPointerToApple);
//но они могут указывать на один и тот же указатель
assert(*poinerToPointerToApple2 == *poinerToPointerToApple);
//и по ним мы можем добраться до исходного значения
assert(**poinerToPointerToApple2 == apple);

In general, you cannot call a variable. You can call the function f() and some special objects. You described the output to the console.

int x = 5;
cout << x; //напечатает 5
cout << &x; //напечатает что-то типа 0x7fffffffd2e4

Answer 3

How are you going to work with Paypal in Ukraine? We don't officially have it and it's not expected in the near future.

Answer 4

woocommerce has paypal by default. You need to enter your PayPal email, and when paying with PayPal, it will convert from uah to your currency, which is on PayPal