MATLAB mex not recognizing cpp classes

[Rosso Carne]

Hi all, I've got some experience with doing standalone cpp programming, but the current project I'm working on involves using Simulink. Up to this point, the simulink model has been calling a .M script, but the number of ODE states are huge, and the program is taking forever to run, so it was time to revamp and move to .cpp.

#include "iostream.h"



class organ {

//organ class functions and variables

};//end of organ class definition

//
//Organ class functions

//class function definitions

#ifdef __cplusplus
extern "C" { // use the C fcn-call standard for all functions
#endif // defined within this scope

#define S_FUNCTION_LEVEL 2
#define S_FUNCTION_NAME sepsis_ode_csimcall


#include "simstruc.h"


//S-Function methods go here

#ifdef MATLAB_MEX_FILE /* Is this file being compiled as a MEX-file? */
#include "simulink.c" /* MEX-file interface mechanism */
#else
#include "cg_sfun.h" /* Code generation registration function */
#endif
#ifdef __cplusplus
} // end of extern "C" scope
#endif 

This is the basic backbone of the code, with the actual methods having a bunch of biological things you all probably wouldn't be interested in. When I compile with MATLAB mex I get the following

>> mex sepsis_ode_csimcall.cpp
Error sepsis_ode_csimcall.cpp: 27  syntax error; found `organ' expecting `;' 
Error sepsis_ode_csimcall.cpp: 27  syntax error; found `{' expecting `;' 
Error sepsis_ode_csimcall.cpp: 27  skipping `{' 
Error sepsis_ode_csimcall.cpp: 97  syntax error; found `:' expecting `;' 
Error sepsis_ode_csimcall.cpp: 97  skipping `:' 
Error sepsis_ode_csimcall.cpp: 100  redeclaration of `organ' previously declared at sepsis_ode_csimcall.cpp 27 
Warning sepsis_ode_csimcall.cpp: 100  missing return value 
Error sepsis_ode_csimcall.cpp: 104  redefinition of `organ' previously defined at sepsis_ode_csimcall.cpp 100 
Error sepsis_ode_csimcall.cpp: 104  redeclaration of `organ' previously declared at sepsis_ode_csimcall.cpp 100 
Error sepsis_ode_csimcall.cpp: 110  undeclared identifier `Vdotout' 
Error sepsis_ode_csimcall.cpp: 115  undeclared identifier `orgID' 
Error sepsis_ode_csimcall.cpp: 131  illegal use of type name `real_T' 
Error sepsis_ode_csimcall.cpp: 131  undeclared identifier `x' 
Error sepsis_ode_csimcall.cpp: 131  operands of = have illegal types `double' and `pointer to double' 
Error sepsis_ode_csimcall.cpp: 131  lvalue required 
Error sepsis_ode_csimcall.cpp: 133  syntax error; found `)' expecting `;' 
Error sepsis_ode_csimcall.cpp: 133  skipping `)' 
Error sepsis_ode_csimcall.cpp: 134  type error: pointer expected 
Error sepsis_ode_csimcall.cpp: 136  syntax error; found `}' expecting `)' 
Error sepsis_ode_csimcall.cpp: 136  unrecognized statement 
Error sepsis_ode_csimcall.cpp: 140  syntax error; found `organ' expecting `;' 
Error sepsis_ode_csimcall.cpp: 140  too many errors 
 
  C:\PROGRA~1\MATLAB\R2009A\BIN\MEX.PL: Error: Compile of 'sepsis_ode_csimcall.cpp' failed. 
 

Now, like I said, I've not delved into this a lot. The MATLAB lcc inclue folder did not initially have the iostream header files, so I copied the headers from the visual studio include folder to the lcc include folder. This included:

iostream.h
ios.h
streamb.h
useoldio.h
istream.h
ostream.h

The old-style header files were used for two reasons: I was afraid the lcc compiler woudln't know what to do with a simple #include <iostream>, as the stock .cpp mex file included the header file. And also because I didn't know which other files were required by <iostream>.

So the problem by my judgement seems to be that the class simply isn't being recognized. Does anyone know a solution for this?