lw_oopc

LW_OOPC upgrade version release notes

I have made some simple modifications and debugging based on lw_oopc Yonghua's source code of Gao Huantang. Make lw_oopc able to be used in actual embedded projects and spread as a good framework.

The main improvements are:

1. Fixed some minor errors to make the compile pass.
2. The position of some macros has been adjusted so that the configuration interface is only in lw_oopc.h.
3. After testing, you can directly compile and run under *nix and delete the unnecessary VS project files.

My contact information:

• Blog: https://akjong.com
• E-mail: [email protected]

Below are some instructions from Kim Yong-hwa [email protected] on his repo

• In Mr. Gao Huantang's book "UML+OOPC Embedded C Language Development Essential Lecture", the lw_oopc macro created by Mr. Gao and his MISOO team is introduced.
• During the study of this set of macros, I found that the set of macros provided by Mr. Gao is too simple and cannot elegantly support interface-oriented programming.
• After careful study, I expanded and improved the original set of macros and obtained an upgraded and improved version of the lw_oopc macro.
• The improved set of macros can support object-oriented programming well and interface-oriented programming (even complex multiple inheritance).

After contacting Mr. Gao Huantang by email, and obtaining Mr. Gao’s consent, we will open source through the LGPL agreement. Thanks to Mr. Gao and the MISOO team for their contribution!

The original macros created by Mr. Gao Huantang and his MISOO team (6 macros in total), the list is as follows

The macro created by Gao Huantang and MISOO	Is there a problem?	Is it modified?
INTERFACE	No problem	no
CLASS	Inheritance cannot be supported	yes
CTOR	Not protected for memory application	yes
END_CTOR	No problem	no
FUNCTION_SETTING	No problem	no
IMPLEMENTS	No problem	no

In order to better support object-oriented and interface-oriented programming, Jin Yonghua added 14 macros

Creation macro	Creation purpose() to solve what problem?
DTOR / END_DTOR	To support the concept of destructor
ABS_CLASS	To support the concept of abstract classes
ABS_CTOR / END_ABS_CTOR	To support the constructor of an inheritable abstract class
EXTENDS	To make it easy for people familiar with Java to understand (equivalent to IMPLEMENTS macros)
SUPER_CTOR	In order to support subclass calling the constructor of the parent class
SUPER_PTR / SUPER_PTR_2 / SUPER_PTR_3	To support upward transformation
SUB_PTR / SUB_PTR_2 / SUB_PTR_3	To support downward transformation
INHERIT_FROM	To support access to data members of direct parent class

• I hope this set of macros can really help C programmers who want to write object-oriented code in C language!