COMP 220 iLab 5 Lab Report and Source Code COMP 220 iLab 5 Lab Report and Source Code

COMP 220 iLab 5 Lab Report and Source Code
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Assignment: Lab 5 Pointers and Pointer Operators
Description: This lab will explore the use of pointers in several ways. Pointers will be used to
dynamically allocate memory for new class objects on demand from the user, and they will be
used to access class-member functions. Pointer arithmetic will be used to access and sort class
objects according to criteria explained in the lab.
Pointers are, essentially, address variables, or variables that hold as their value the address of
other variables. In terms of memory management, they are very powerful devices, and they
more closely and efficiently use the actual internal hardware registers of the microprocessor
that the program operates on.
Pointers also have the requirement that the pointer type must be of the same data type as the
variable, or the data that it points to or holds the address of. The power of pointers also hints at
the potential complexity of their use, which is why this lab is focused almost entirely on several
different aspects and uses of pointers. The lab also introduces pointer arrays and pointers to
pointers.
The Resistor class created in the Week 2 lab will be used as the class that the pointer operations
will be used upon. The lab also requires the use of accessor functions and static data members,
which may need to be added to the Resistor class definition and implementation.