[PDF] are pointers on the stack or heap

In general, pointers are stored on the stack. However, if a pointer is pointing to a memory location that is allocated on the heap, then the pointer itself would be stored on the stack, while the data it is pointing to would be stored on the heap.
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  • Can a pointer be on 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.

  • Do pointers only point to the heap?

    The vector class will automatically free the memory it allocates on the heap when its destructor is called, so you don't have to do that yourself. Pointers do not have to point to heap memory, they can also point to stack memory if initialised with a reference to a stack variable, e.g. int * x_ptr = &x .

  • Are pointers always on the heap in C++?

    It depends.
    If you declare a pointer as a local variable inside a function the pointer will be located on the stack. int main() { int * p = new int ; // p is located on the stack, because it's local variable. // *p is located on the heap, because it was created with new. }29 oct. 2017

  • Are pointers always on the heap in C++?

    Pointers are said to "point to" the variable whose address they store.
    An interesting property of pointers is that they can be used to access the variable they point to directly.
    This is done by preceding the pointer name with the dereference operator ( * ).

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