Question

I need to write my 4-5 .cpp and .h file to c code. In C++ code we have defined a class, constructor, destructor, function.

How to convert them in C code?
Can somebody give me example of it so that i can implement it or provide link so that I can better explore it to my C code?
How to implement all the functionality i mean constructor,destructor,functions of class in C ?

Answer 1

1. convert all classes to data structures (typedefs)
2. replace constructors and destructors with functions that use malloc/calloc and free and return/take pointers to your typedef’d structures
3. eliminate polymorphism; if this is not possible then implement a message-dispatching function for each typedef (a big switch statement) and represent messages as constant integers
4. alter all functions to take a pointer to the appropriate typedef

Note that typedefs do not support subtyping, so all inheritance will have to be converted to composition.