Error trying to build an s-function in C

Hi,

I try to make a simulink model working with s-function written in C and here's my main file ( main.c ):

#include "Reservoir.h"

void Reservoir(double q1,

double q2,

double qe,

double qo,

double *y1,

double *y2,

double *y3,

double *y4)

{

*y1 = q1 + q2 + qe - qo;

*y2 = 1875.0 * q1 + 1667.0 * q2 + 1000.0 * qe - 1468.48 * qo;

*y3 = sqrt(*y1 + 1) - 1;

*y4 = ((3000.0) * (1 - 1000.0)) / ((3000.0 - 1000.0) * (*y2 / *y1));

}

And here's my header file ( Reservoir.h ):

#ifndef RESERVOIR_H

#define RESERVOIR_H

#include "tmwtypes.h"

extern void Reservoir(double q1, double q2, double qe, double qo, double *y1, double *y2, double *y3, double *y4);

#endif

And when I execute my file :

def = legacy_code('initialize');

def.SFunctionName = 'S_function1';

def.OutputFcnSpec = 'Reservoir(double u1, double u2, double u3, double u4, double y1, double y2, double y3, double y4)';

def.HeaderFiles = {'Reservoir.h'};

def.SourceFiles = {'main.c'};

legacy_code('sfcn_cmex_generate', def)

legacy_code('compile', def)

legacy_code('sfcn_tlc_generate', def)

I get this error :

Error using mex

C:\Users\PODES7\Desktop\Reservoir_sfunc\S_function1.c: In function 'mdlOutputs':

C:\Users\PODES7\Desktop\Reservoir_sfunc\S_function1.c:229:35: error: incompatible type for argument 5 of

'Reservoir'

Reservoir(*u1, *u2, *u3, *u4, *y1, *y2, *y3, *y4);

^

In file included from C:\Users\PODES7\Desktop\Reservoir_sfunc\S_function1.c:39:0:

C:\Users\PODES7\Desktop\Reservoir_sfunc\Reservoir.h:5:13: note: expected 'double *' but argument is of type

'real_T {aka double}'

extern void Reservoir(double q1, double q2, double qe, double qo, double *y1, double *y2, double *y3, double

*y4);

^~~~~~~~~

C:\Users\PODES7\Desktop\Reservoir_sfunc\S_function1.c:229:40: error: incompatible type for argument 6 of

'Reservoir'

Reservoir(*u1, *u2, *u3, *u4, *y1, *y2, *y3, *y4);

^

In file included from C:\Users\PODES7\Desktop\Reservoir_sfunc\S_function1.c:39:0:

C:\Users\PODES7\Desktop\Reservoir_sfunc\Reservoir.h:5:13: note: expected 'double *' but argument is of type

'real_T {aka double}'

extern void Reservoir(double q1, double q2, double qe, double qo, double *y1, double *y2, double *y3, double

*y4);

^~~~~~~~~

C:\Users\PODES7\Desktop\Reservoir_sfunc\S_function1.c:229:45: error: incompatible type for argument 7 of

'Reservoir'

Reservoir(*u1, *u2, *u3, *u4, *y1, *y2, *y3, *y4);

^

In file included from C:\Users\PODES7\Desktop\Reservoir_sfunc\S_function1.c:39:0:

C:\Users\PODES7\Desktop\Reservoir_sfunc\Reservoir.h:5:13: note: expected 'double *' but argument is of type

'real_T {aka double}'

extern void Reservoir(double q1, double q2, double qe, double qo, double *y1, double *y2, double *y3, double

*y4);

^~~~~~~~~

C:\Users\PODES7\Desktop\Reservoir_sfunc\S_function1.c:229:50: error: incompatible type for argument 8 of

'Reservoir'

Reservoir(*u1, *u2, *u3, *u4, *y1, *y2, *y3, *y4);

^

In file included from C:\Users\PODES7\Desktop\Reservoir_sfunc\S_function1.c:39:0:

C:\Users\PODES7\Desktop\Reservoir_sfunc\Reservoir.h:5:13: note: expected 'double *' but argument is of type

'real_T {aka double}'

extern void Reservoir(double q1, double q2, double qe, double qo, double *y1, double *y2, double *y3, double

*y4);

^~~~~~~~~

Error in legacycode.LCT/compile

Error in legacycode.LCT.legacyCodeImpl

Error in legacy_code (line 103)

[varargout{1:nargout}] = legacycode.LCT.legacyCodeImpl(action, varargin{1:end});

Error in demarches (line 13)

legacy_code('compile', def)

Can somebody help me please ?