typedef struct tSupplier{
	int idSupplier;
    tString name; 
    tString addr;
    int phone[MAX_PHONE];
    struct tFurniture *firstFur,*currFur;                               
    float profitMargin;
} tSupplier;
 
typedef struct {
	int idFurniture;
	int idSup;
	tString nameFur;
	float sizes[MAX_SIZES];
	tString typeFur;
	tColor color;
	float costPrice;
	float retailPrice; 
	int deliveryTime;
	struct tFurniture *prevFur, *nextFur;                               
	struct tFurniture *prevFurType, *nextFurType;
} tFurniture;
 
........
 
void fur_get_name (tFurniture f, tString n)
{
     strcpy (n,f.nameFur);        
}
 
.......
 
void sup_set_profitMargin (tSupplier *s, float r)
{
     tString name;
     float price;
 
     s->profitMargin = r;
 
     s->currFur=s->firstFur;
     if (s->currFur!=NULL)
        {
             sup_get_name(*s,name);
             printf("-----------------------------------------------------------------");
             printf("Supplier: %s \n",name);
 
             if (s->idSupplier == s->currFur->idSup) /* Aqui me da el primer error de dereferencing  */
                       s->currFur->retailPrice = s->profitMargin * s->currFur->costPrice;
             while (s->currFur!=NULL)
                   {
                        fur_get_name(s->currFur,name); /* Aqui me da el error de incompatible tipo de argumento en parametro 1*/
                        printf("Furniture: %s \t",name);
 
                        price=fur_get_retailPrice(s->currFur);
                        printf("Old retail price: %d \t", price);
 
                        s->currFur->retailPrice = s->profitMargin * s->currFur->costPrice;
 
 
                        price=fur_get_retailPrice(s->currFur);
                        printf("New retail price: %d \n", price);
 
                        s->currFur=s.currFur->nextFur;
                   }
             printf("-----------------------------------------------------------------");
        }
}

void sup_set_profitMargin (tSupplier *s, float r)
{
     tString name;
     float price;
     tFurniture *pf,f;
 
     s->profitMargin = r;
 
     sup_firstFur (s, pf);
 
     if (pf!=NULL)
        {
             sup_get_name(*s,name);
             printf("-----------------------------------------------------------------");
             printf("Supplier: %s \n",name);
 
             if (s->idSupplier == s->currFur->idSup)
                       s->currFur->retailPrice = s->profitMargin * s->currFur->costPrice;
             while (s->currFur!=NULL)
                   {
                        f=*s->currFur;     
                        fur_get_name(f,name);
                        printf("Furniture: %s \t",name);
 
                        price=fur_get_retailPrice(f);
                        printf("Old retail price: %d \t", price);
 
                        s->currFur->retailPrice = s->profitMargin * s->currFur->costPrice;
 
                        f=*s->currFur;
                        price=fur_get_retailPrice(f);
                        printf("New retail price: %d \n", price);
 
                        sup_next_Fur (s,pf);
                   }
             printf("-----------------------------------------------------------------");
        }
}