- What is a NULL Pointer? Whether it is same as an uninitialized pointer?
Null pointer is a pointer which points to nothing but uninitialized pointer may point to
- What is a pointer?
Pointers are variables which stores the address of another variable. That variable may be a scalar (including another pointer), or an aggregate (array or structure). The pointed-to object may be part of a larger object, such as a field of a structure or an element in an array.
- What is null pointer?
NULL pointer is a pointer which is pointing to nothing.
int *ptr=(char *)0;
Float *ptr=(float *)0;
- How are pointer variables initialized?
Pointer variable are initialized in two ways:
Static memory allocation
Dynamic memory allocation
- What is “&” and “*” operators in C?
“*” Operators is used as pointer to a variable. Example: * a where * is pointer to the variable a.
& operator is used to get the address of the variable. Example: &a will give address of a.