/*
 *   person.cpp
 *   CIS 250
 *   David Klick
 *   2/21/05
 *
 *   Demonstration of classes, constructors, constructor
 *   overloading, accessor and mutator methods, static
 *   and constant data members, dynamic memory alloaction,
 *   and destructors.
 */

#include "person.h"

int person::count = 0;

person::person() { init("", 0L, 'M', 0); }
person::person(const char* name, const long ssn,
      const char gender, const int age) {
   init(name, ssn, gender, age);
}
void person::init(const char* nm, const long ssn,
      const char gender, const int age) {
   name = NULL;
   setName(nm);
   setSSN(ssn);
   setGender(gender);
   setAge(age);
   count++;
}

person::~person() {
   if (name != NULL) delete[] name;
   count--;
}

void person::setName(const char* nm) {
   if (name != NULL) delete[] name;
   if (nm == NULL) {
      name = new char[1];
      if (name != NULL) name[0] = '\0';
   } else {
      name = new char[strlen(nm) + 1];
      if (name != NULL) strcpy(name, nm);
   }
}

void person::setSSN(const long ssn) {
   // you may have to use the this pointer if
   //   arg names match instance variable names
   if (ssn < 0L) this->ssn = 0L;
   else this->ssn = ssn;
}

void person::setGender(const char g) {
   if (g=='M' || g=='m') gender = 'M';
   else gender = 'F';
}

void person::setAge(const int age) {
   // you may have to use the this pointer if
   //   arg names match instance variable names
   if (age < MINIMUM_AGE) this->age = MINIMUM_AGE;
   else if (age > MAXIMUM_AGE) this->age = MAXIMUM_AGE;
   else this->age = age;
}

const char* person::getName() const {
   return name;
}

long person::getSSN() const {
   return ssn;
}

int person::getAge() const {
   return age;
}

char person::getGender() const {
   return gender;
}

int person::getCount() {
   return count;
}