Menu
A pointer is a variable whose value is the address of another variable, i.e., direct address of the memory location. Like any variable or constant, you must declare a pointer before you can use it to store any variable address.
A pointer is a type of variable that carries location information. In this case, the example variable will store the address of an Order object that we want to interact with. We initialize the pointer variable by using the C++ new operator to construct a new object of type Order.
The Pointer in C, is a variable that stores address of another variable. A pointer can also be used to refer to another pointer function. A pointer can be incremented/decremented, i.e., to point to the next/ previous memory location. The purpose of pointer is to save memory space and achieve faster execution time.
A pointer is a variable that stores the address of another variable. Unlike other variables that hold values of a certain type, pointer holds the address of a variable. For example, an integer variable holds (or you can say stores) an integer value, however an integer pointer holds the address of a integer variable.
I am new to coding and trying to get up to speed with Objective-C. Came across some code I did not understand. I was hoping someone could clarify it for me. In the case below, I am not sure how *foo2 is working and why it is not being released?
ClassOne *pointer = [[ClassOne alloc]init];
ClassTwo *foo = [[ClassTwo alloc]init], *foo2;
foo2 = [foo add: pointer];
[foo release];
foo = foo2
[pointer release];
[foo release];
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With