C++ Primer

C++ Primer is a classic C++ book. Studying it helps build a deeper understanding of C++. Since computer graphics depends heavily on C++, I started learning from this book and recorded notes here.

Chapter 15

Inheritance access modifiers: public, protected, and private.

public: all access permissions of base-class members remain unchanged in the derived class.

protected: all public members of the base class become protected members in the derived class.

private: all base-class members, whether public, protected, or private, become private members in the derived class.

In short, the access changes are shown below:

Chapter 17: Special Library Facilities

Regular Expressions: A 30-Minute Tutorial

Code Repository

CPP_Primer_Practice

C++ Related

Inspecting OOP Memory Layout

Visual Studio’s cl tool can conveniently inspect the memory layout of a class.

Using Visual Studio 2022 as an example:

Find this in the Start menu:

Visual Studio 2022 -> x64 Native Tools Command Prompt for VS 2022

Switch to the current directory. If you need to switch drives, such as to drive D, enter D: first. Then run:

cl /d1 reportSingleClassLayoutXXX [filename]

Here XXX is the class name, and [filename] is the source file.

For example, if the class name is Milk and the file is decorator.cpp:

cl /d1 reportSingleClassLayoutMilk decorator.cpp

Then you can see the layout result for class Milk:

When a class has virtual functions, a vtable pointer is inserted at the beginning of the class. With multiple inheritance, each inherited base adds one.