[Bf-committers] How to mix C and C++ in Blender

[Alexander Pinzon Fernandez]

Hi all.

I am working on Bmesh operator for perform laplacian editing for sketch
mesh gsoc project.

If the library to solve the linear system is SuperLU and Eigen3 for matrix
operations, then I must learn how to mix C code (SuperLU) and C ++ (Eigen3)
in Blender. (elegant and organized way).

I have c code file in
source\blender\bmesh\operators\bmo_deform_laplacian.c
in bmo_deform_laplacian.c i call several c++ functions (ej. au = ftest(4
,5);) declare in bmo_deform_utils.h  and implemented in
bmo_deform_utils.cpp.

this two files are in source\blender\bmesh\operators\

What are the directories where the files should put  bmo_deform_utils.h
 and bmo_deform_utils.cpp?
What are policies and style guides in Blender to mix C code and C ++?

Example

bmo_deform_laplacian.c
//////////////////////////////////////
....
#Include "bmo_deform_utils.h"
...
au = ftest(4 ,5);
...
///////////////////////////////////////

bmo_deform_utils.h
///////////////////////////////////////
#ifndef __BMO_DEFORM_UTILS_H__
#define __BMO_DEFORM_UTILS_H__


#ifdef __cplusplus
extern "C" {
#endif

int ftest(int x, int y);

#ifdef __cplusplus
};
#endif

#endif //__BMO_DEFORM_UTILS_H__
///////////////////////////////////////

bmo_deform_utils.cpp
///////////////////////////////////////////

#include "bmo_deform_utils.h"

class ABC{
public:
int a,b;
ABC(int ax, int by ){
a = ax;
b = by;
}
int fsum(){
return a + b;
}
};

int  ftest(int x, int y){
ABC A(x, y);
return A.fsum();
}
///////////////////////////////////////////

Thanks in advance.

Att
Alexander Pinzon Fernandez