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Programming Diploma in Assembler, Fortran, Basic
C++, JavaScript,HTML, Visual Basic 6.0
//Michael Wetherwax
//Date Class implementaion - C++
#include
#include
#include
#include
#include
#include
#include "Date.h"
#include"Person.h"
const int Date::monthDays[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
Date::Date() //:month(0),day(0),year(0) {}
Date::~Date() {}
void Date::getDate()
{
Date tday;
char buffer3[3];
char buffer4[3];
char buffer5[5];
int answer = 0;
// int mo, da, yr, thisyear; do { cout<<"\nEnter month number : "; cin<<buffer3; answer = isValidbmoDigit(buffer3); if (answer == 1) strcpy (m, buffer3); mo = atoi(m); cout<<"Mo = "<<mo; }
while((answer == 0) || ((mo > 12) || (mo < 1))); answer = 0;
do
{
cout<<"\nEnter day number : ";
cin<<buffer4;
answer = isValidbdayDigit(buffer4);
if (answer == 1)
strcpy (d, buffer4);
da = atoi(d);
cout<<"Da = "<<da;
}
while((answer == 0) || ((da > 31) || (da < 1)));
answer = 0;
do
{
cout<<"\nEnter year number(xxxx) : ";
cin<<buffer5;
answer = isValidbyearDigit(buffer5);
if (answer == 1)
{
strcpy (y, buffer5);
}
yr = atoi(y);
cout<<"yr = "<<yr;
tday = tday.callToday();
thisyear = tday.printYear();
if (yr > thisyear)
{
cout<<"\nInvalid year!";
}
}
while ((answer == 0) || (yr > thisyear));
}
int Date::isValidbmoDigit(char numb[] )
{
int digit3 = 0;
int nondigit3 = 0;
for (unsigned j = 0; j < strlen(numb); j++) {
if (isdigit(numb[j]))
digit3++;
if (! isdigit(numb[j]))
nondigit3++;
}
if ((nondigit3 > 0)||(digit3 >2))
{
cout<<"Month must be no more than 2 numbers. Enter again!\n"; return 0;
}
else return 1; }
int Date::isValidbdayDigit(char numb[] )
{
int digit4 = 0;
int nondigit4 = 0;
for (unsigned j = 0; j < strlen(numb); j++)
{
if (isdigit(numb[j]))
digit4++;
if (! isdigit(numb[j]))
nondigit4++;
}
if ((nondigit4 > 0)||(digit4 > 2))
{
cout<<"Day must be no more than 2 . Enter again!\n";
return 0;
}
else
return 1;
}
int Date::isValidbyearDigit(char numb[] )
{
int digit5 = 0;
int nondigit5 = 0;
for (unsigned j = 0; j < strlen(numb); j++)
{
if (isdigit(numb[j]))
digit5++;
if (! isdigit(numb[j]))
nondigit5++;
}
if ((nondigit5 > 0)||(digit5 != 4))
{ cout<<"Year must be 4 numbers. Enter again!\n";
return 0;
}
else
return 1;
}
void Date::printDate()
{ cout <<mo << "/" <<da<< "/ " <<yr<<"\n"; }
Date Date::callToday()
{
Date today;
struct tm *tptr;
time_t t1;
time(&t1);
tptr = localtime(&t1);
tptr-> tm_mon;
tptr-> tm_mday;
tptr-> tm_year;
today.month = (*tptr).tm_mon + 1;
today.day = (*tptr).tm_mday;
today.year = (*tptr).tm_year + 1900;
//border('*', 60, 1);
//cout<<"\nToday is : "<<today.month<<" "<<today.day <<" "<<today.year<<endl;
return today;
}
void Date::printToday()
{
Date today2;
struct tm *tptr;
time_t t1;
time(&t1);
tptr = localtime(&t1);
tptr-> tm_mon;
tptr-> tm_mday;
tptr-> tm_year;
today2.month = (*tptr).tm_mon + 1;
today2.day = (*tptr).tm_mday;
today2.year = (*tptr).tm_year + 1900;
border('*', 60, 1);
cout<<"\nToday is : "<<today2.month<<" "<<today2.day <<" "<<today2.year<<endl;
//return today;
}
int Date::printYear()
{
return year;
}
Date Date:: operator- (Date d1)
{
int yr =0;
int mon = 0;
int x1 = 0, x2 = 0, diff, i = 0;
Date result;
x1 = (year * 365) + getmonthDays() + day;
x2 = (d1.year * 365) + d1.getmonthDays() +d1.day;
diff = x1 - x2;
while (diff >= 365)
{
yr++;
diff-65;
}
while (diff > 28)
{
mon++;
diff -= monthDays[i];
i++;
}
result.year = yr;
result.month = mon;
result.day = diff;
return result;
}
int Date::operator> (Date d1)
{
int x1, x2;
x1 = (year * 365) + getmonthDays() + day;
x2 = (d1.year * 365) + d1.getmonthDays() + d1.day;
if (x1 > x2)
return 1;
else
return 0;
}
int Date::operator==(Date d1)
{
if((year == d1.year) && (month == d1.month) && (day == d1.day))
return 1;
else
return 0;
}
void Date::operator = (Date d1)
{
month = d1.month;
day = d1.day;
year = d1.year;
}
int Date::getmonthDays(){
int total = 0;
for(int i = 0; i < month -1; i++)
total += monthDays[i];
if(((year % 400) == 0) || ((year % 100 ) && (year % 4 == 0)))
total = total + 1;
return total;
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