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Data Structures

Pointers and Array-Based Lists

Pointer variables contain The addresses of other variables as their values
In C++ no name is associated with the pointer data type.
A pointer variable is declared using an asterisk between the data type and the variable.
In C++, & is called the address of operator
The address of operator returns the address of its operand.
If p is a pointer variable of type int and num is an int variable the statement p = # sets the value of p to the address of num.
When used as a unary operator, * is called the dereferencing operator
The memory location indicated by the value of a pointer variable is accessed by using the dereferencing operator, *.
if p is a pointer variable of type int, the statement *p = 25; sets the value of the memory location indicated by the value of p to 25.
You can use the member access operator arrow _>,