person2.cpp

Code

/*
 *   person2.cpp
 *   CIS 250
 *   David Klick
 *   2005-02-21
 *   2010-10-13 modified to add corrections
 *
 *   Demonstration of friends, copy constructor,
 *   and operator overloading.
 */

#include "person2.h"

int person2::count = 0;

person2::person2() { init("", 0L, 'M', 0); }

person2::person2(const char* name, const long ssn,
        const char gender, const int age) {
    init(name, ssn, gender, age);
}

person2::person2(const person2& p) {
    init(p.name, p.ssn, p.gender, p.age);
}

void person2::init(const char* nm, const long ssn,
        const char gender, const int age) {
    name = NULL;
    setName(nm);
    setSSN(ssn);
    setGender(gender);
    setAge(age);
    count++;
}

person2::~person2() {
    if (name != NULL) delete[] name;
    count--;
}

void person2::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 person2::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 person2::setGender(const char g) {
    if (g=='M' || g=='m') gender = 'M';
    else gender = 'F';
}

void person2::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* person2::getName() const {
    return name;
}

long person2::getSSN() const {
    return ssn;
}

int person2::getAge() const {
    return age;
}

char person2::getGender() const {
    return gender;
}

int person2::getCount() {
    return count;
}

person2& person2::operator=(const person2& p) {
    if (this != &p) {
        setName(p.name);
        setSSN(p.ssn);
        setGender(p.gender);
        setAge(p.age);
    }
    return *this;
}

bool person2::operator==(const person2& p) const {
    return strcmp(name, p.name)==0 && age==p.age
        && gender==p.gender && ssn==p.ssn;
}

ostream& operator<<(ostream& strm, const person2& p) {
    strm << "Name: " << p.name
        << " (" << p.gender << ")"
        << "\n SSN: " << p.ssn
        << "\n Age: " << p.age << '\n';
    return strm;
}

istream& operator>>(istream& strm, person2& p) {
    char tmpName[40];
    int tmpAge;
    long tmpSSN;
    char tmpGender;
    cout << "Enter name: ";
    strm.getline(tmpName, 40, '\n');
    cout << "Enter SSN: ";
    strm >> tmpSSN;
    cout << "Enter gender: ";
    strm >> tmpGender;
    cout << "Enter age: ";
    strm >> tmpAge;
    p.setName(tmpName);
    p.setSSN(tmpSSN);
    p.setGender(tmpGender);
    p.setAge(tmpAge);
    return strm;
}