Calendars

[aosmith]

update: down to one error
I'm justt trying to finish up an assignment and i hit a couple snags... anyways we have to print a calendar for the years 2008 - 2099 (depending on the year a user inputs)... anyways here's how im (trying to) do it. Its a mod of a previous assignment:
(updated)

#include <iostream>
#include <fstream>
#include <string>

using namespace std;
int yearload (int* days[12], int* startday[12], int year)
{
	int after8=year-2008;
	while (after8>0, after8++)
	{
		int i = 0;
		while (i<12, i++)
		{
			if (year%4==0)
			{
				*startday[i]=(*startday[i]+366)%7;
			}
			else
			{
				*startday[i]=(*startday[i]+365)%7;
			}
		}
	}
	if (year%4 == 0)
	{
		int days[12]={31,29,31,30,31,30,31,31,30,31,30,31};
	}
	else
	{
		int days[12]={31,28,31,30,31,30,31,31,30,31,30,31};
	}
	return 0;
}
void pmonth (string month, int days, int day, int year)
{
	//open cal.txt, and go to eof
	ofstream cal ("cal.txt", ios::app);
	//print first week and white space
	cal<<month<<"\t\t"<<year<<"\n  S  M  T  W  T  F  S\n";
	int j = day + 1;
	//print whitespace to move the 1st to the right spot
	while (day > 0)
	{
		cal<<"   ";
		day--;
	}
	
	int date = 1;
	while (date < days + 1)
	{
		//handles a new line
		if ( j < 8 )
		{
			if (date < 10)
			{
				//theres an extra space to make everything look right (single digits)
				cal<<"  "<<date;
				j++;
				date++;
			}
			else
			{
			cal<<" "<<date;
			j++;
			date++;
			}
		}
		//print a new line if we've run beyond the end of the week
		else
		{
			cal<<"\n";
			j=1;
		}
	}
	//at the end of the month print two cr's
	if (date=date+1)
		cal<<"\n\n";

}
int main()
{
	int year=2008;
	cout<<"Enter a year: ";
	cin>>year;
	/*var ref:
	month	"2008"
	"S M T W T F S"
	 1 2 3 4 5 6 7 <--Day
	*/
	string months[12]={"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
	//these are true for 2008 (or year "0" in our model)
	int startday[12]={2,5,6,2,4,0,2,5,1,3,6,1};
	int days[12]={31,29,31,30,31,30,31,31,30,31,30,31};
	yearload (&days, &startday[12], year); 
	int day=2;
	int i = 0;
	while (i<12, i++)
	{
		pmonth (months[i], days[i], startday[i], year);
	}
	return 0;

}

... I'm getting a laundry list of compile errors mostly relating to pointers. ideas?

Update: down to one

Here's a list of errors:

1>c:\users\alex smith\documents\visual studio 2008\projects\cis150a3\cis150a3\calendar.cpp(94) : error C2664: 'yearload' : cannot convert parameter 1 from 'int (*)[12]' to 'int *'
1>        Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

[7stud]

1) How do you declare an array that will hold 12 integers?

2) How do you declare an array that will hold 12 pointers(to integers)?

[Paul McKenzie]

update: down to one error
I'm justt trying to finish up an assignment and i hit a couple snags...

if (year%4 == 0)
	{
		int days[12]={31,29,31,30,31,30,31,31,30,31,30,31};
	}
	else
	{
		int days[12]={31,28,31,30,31,30,31,31,30,31,30,31};
	}

Explain in your own words what this code does. It certainly doesn't do what you think it should have done.

Regards,

Paul McKenzie

[aosmith]

It should load an array with the number of days in each month depending on if that month is a leap year (and since our time range is only 2008-2099 thats the only rule we need to apply (evenly divisible by 4)).

[aosmith]

1) How do you declare an array that will hold 12 integers?

2) How do you declare an array that will hold 12 pointers(to integers)?

int days[12]={31,29,31,30,31,30,31,31,30,31,30,31};

int* days[12]

[MrViggy]

	if (year%4 == 0)
	{
		int days[12]={31,29,31,30,31,30,31,31,30,31,30,31};
	}
	else
	{
		int days[12]={31,28,31,30,31,30,31,31,30,31,30,31};
	}

Another hint, variable scoping....

Viggy

[Lindley]

Also, the leap year rule is a bit more complicated than that. In this case it's fine, just FYI.