Array values export problem to DLL

#include <math.h>

    main() {

	
    static double y[21];                       //controlled variable
    static double m_A[21];              //modulation index          
    double dm_A=0.05;                   //small change for modulation index
    int n;
    double i_cell[]={4.65, 4.68, 4.7, 3.7, 2.1, 2.8,4.68, 4.65, 3.9, 3.7, 2.1, 2.8,4.68, 4.65, 3.9, 4.3, 2.1, 3.3, 4, 3.7,4.6}; 
	
        
        
        for (n=1;n<=19;n++){
        
        m_A[0]=0.75;
        m_A[1]=0.65;
            
        y[n-1]=i_cell[n-1]*m_A[n-1];                 //estimated initial controlled variable
        y[n]=i_cell[n]*m_A[n];  

    if (((m_A[n]>=m_A[n-1]) && (y[n]>=y[n-1])) ||    //algorithm for maximum power point tracking
        (((m_A[n]<m_A[n-1]) && (y[n]<y[n-1]))))	
                   
        m_A[n+1]=m_A[n]+dm_A;           //increase modulation index
                                         
    else                                //while one of them is increasing and the other one decreasing
         
        m_A[n+1]=m_A[n]-dm_A;           //decrease modulation index  
  
 
        printf("%f \n",m_A[n+1]);       //display modulation indices
            
                        }
            }   

#include <math.h>
__declspec(dllexport) void simuser (t, delt, in, out)
double t, delt;
double *in, *out;
{


	static double y[21];				//controlled variable
	static double m_A[21];				//modulation index
	double i_cell=4.65;			       //estimated initial current value
	int n;
		
		
	for (n=1;n<=19;n++){
		m_A[0]=0.75;					//estimated initial current value
		m_A[1]=0.65;					//second estimated initial current value
	
		y[n-1]=i_cell*m_A[0];			//estimated initial controlled variable
		y[n]=in[0]*m_A[n];				//in[0] current input value which comes from simulation 					

	
	if (((m_A[n]>=m_A[n-1]) && (y[n]>=y[n-1])) || 
		(((m_A[n]<m_A[n-1]) && (y[n]<y[n-1]))))	
            
		m_A[n+1]=m_A[n]+in[1];			//in[1] which is input 2 from circuit based simulation
	
	else								//while one of them increases and the other one decreases
        m_A[n+1]=m_A[n]-in[1];			//decrease modulation index

	out[0]=m_A[n+1];					// out[0] is output which is transfered to the simulation with DLL
	
						}		
		 	

}