Thread: class problem

Here is my program. I'm not completly done yet, but I'm getting an error message when I compile and I can't figure out what I'm doing wrong either with the way I wrote the class or the way I called it.

Code:

#include <iostream>
#include <iomanip>
#include <math.h>
#include <ctype.h>
#include <string.h>
#include <fstream>

using namespace std;

class patient
{
 public:
   char Name[30];
   int amLevel;
   int noonLevel;
   int pmLevel;
   
   patient();
   patient(char*, int, int, int);
   
   void toString(char*);
   
 private:  
   int checkAmLevel();
   int checkNoonLevel();
   int checkPmLevel();
   double aveLevel();
   void allLevelsOk();
   void getAmLevel();
   void getNoonLevel();
   void getPmLevel();
              
};

patient::patient()
{

strcpy(Name, "none"); 
amLevel = 0;
noonLevel = 0;
pmLevel = 0;

}

patient::patient(char* name, int a, int n, int p)
{
                     
strcpy(Name, name);

amLevel = a;
noonLevel = n;
pmLevel = p;

}

int patient::checkAmLevel()
{
     
   if(amLevel > 10 && amLevel < 500)
   return 1;
   
   else
   return 0;
}

int patient::checkNoonLevel()
{
     
   if(noonLevel > 10 && noonLevel < 500)
   return 1;
   
   else
   return 0;
     
}

int patient::checkPmLevel()
{
     
   if(pmLevel > 10 && pmLevel < 500)
   return 1;
   
   else
   return 0;
     
}

double patient::aveLevel()
{
   int count = 0;
   
   
     
     
}

void patient::allLevelsOk()
{
     

     
}

void patient::getAmLevel()
{
     

     
}

void patient::getNoonLevel()
{
     
     
     
}

void patient::getPmLevel()
{
     
     
     
}

void patient::toString(char* strPtr)
{
     
   char temp[6];
   
   strcpy(strPtr, Name);
   
   strcat(strPtr, ":am: ");
   if(checkAmLevel())
     {
        sprintf(temp, "%d", amLevel);
        strcat(strPtr, temp);
        
     }
   
   else
      strcat(strPtr, "out-of-range");
       
   strcat(strPtr, " :noon: ");
   if(checkNoonLevel())
     {
        sprintf(temp, "%d", noonLevel);
        strcat(strPtr, temp);
        
     }
     
   else
      strcat(strPtr, "out-of-range");
      
   strcat(strPtr, " :pm: ");
   if(checkPmLevel())
     {
         sprintf(temp, "%d", pmLevel);
         strcat(strPtr, temp);
         
     }
     
   else
     strcat(strPtr, "out-of-range");   
     
}

int main()
{
    
   char display[100];
   
   patient P[3];
   
   P[0].patient("Chris Henkhaus", 100, 125, 150);
   
   P[1].patient("Jane Doe", 550, 100, 175);
   
   P[2].patient("John Doe", 7, 100, 250);
   
   P[0].toString(display);
   cout << display;
   
   P[1].toString(display);
   cout << display;
   
   P[2}.toString(display);
   cout << display;
   
   return 0;
    
}

and when I compile I'm getting an error message that reads:
invalid use of `class patient'

So what am I doing wrong?