C++ Pointers and Memory

This document explains how pointers and memory work and how to use them—from the basic concepts through all the major programming techniques. For each topic there is a combination of discussion, sample C code, and drawings.

Table of Contents

• Section 1 Basic Pointers
• Why Have Pointers?
• What Is A Pointer?
• Pointer Dereference
• Pointer Assignment
• Pointer Type Syntax
• Pointer Variables
• The & Operator — Reference To
• How Do Pointers Work In Java
• Section 2 Local Memory
• Thanks For The Memory
• Allocation And Deallocation
• Small Locals Example
• Section 3 Reference Parameters
• Reference Parameters in C++
• How Does The Function Call Stack Work?
• Section 4 Heap Memory
• Programming The Heap
• Simple Heap Example

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