c pointer to stack variable

What is the pointer to a stack variable?
A stack is a specialized buffer that is used by a program's functions to store data such as parameters, local variables and other function-related information.
The stack pointer -- also referred to as the extended stack pointer (ESP) -- ensures that the program always adds data to the right location in the stack.
Can a pointer point to the stack?
In C/C++, pointers can point to either the stack or the heap, depending on where the memory being pointed to is allocated.
If the memory is allocated on the stack, such as when a variable is declared within a function, then the pointer will point to the stack.
Can you return a pointer to a stack allocated variable?
A function returns the address of a stack variable, which will cause unintended program behavior, typically in the form of a crash.
Because local variables are allocated on the stack, when a program returns a pointer to a local variable, it is returning a stack address.
Arguments Passing with pointers
As an argument, a pointer is passed instead of a variable and its address is passed instead of its value.
As a result, any change made by the function using the pointer is permanently stored at the address of the passed variable.
In C, this is referred to as call by reference.

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Pointers, Stack & Heap Memory, malloc( )

You can declare a pointer and have it point to (make its value be) that location in memory for the variable called count as follows: int *ptr; ptr = &count; The asterisk (*) in a declaration defines to the system that ptr is to be a pointer and the int is the data type to which it will point

PDF	Memory management the stack & the heap EBP (Extended Base Pointer) register hic 12 previous stack frame return value arguments admin stuff local variables unused memory stack pointer (ESP)

PDF	Introduction What goes inside when you declare a variable? Stack When this line is executed it creates a pointer on the stack and the actual object is stored in a different type of memory location called 'Heap' 'Heap' does not

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PDF	Stack Bounds Protection with Low Fat Pointers - NDSS Variable p is a low-fat pointer since (a) p is a regular machine pointer (via cast p ptr), and (b) p can be used to extract bounds meta information, e g , the object size