Day Calculation Part II


Many computer applications, such as Microsoft Excel, can compare date values that occur after January 1, 1900.  For example, these programs can determine if  06/06/99 is less than (comes before) 11/01/00.  They use January 1, 1900 as their reference point.  This becomes day 1.  All other dates are calculated as to the number of days they are relative to January 1, 1900.  For example January 2, 1900 is equal to 2.  October 31, 2000 is equal to 36829


Most software these days is not written from scratch.  Software developers will reuse code written for other applications or add on to current applications.  In Part I we calculated the number of days since January 1 of a year to the date specified in the same year.  For this lab we will expand on this to calculate the number of days from January 1, 1900 to a given date. 


For this assignment, you are to write a C++ program which will:


1.     Read a set of dates from an input file.  You do not know in advance how much input you will need to process.  This means you need to read to end of file.  The date is represented as a month, a day and a year, separated by spaces. 


2. Calculate the number of days from January 1, 1900 to December 31 of the previous year.  For example, if your date reads:

 4 22 1995

You will calculate the number of days from January 1 1900 to December 31 1994. 


Keep in mind that non leap years have 365 days and leap years have 366 days.


3.     Use your code from Lab 4 to add to the calculation from number 3 above to calculate the total number of days from January 1, 1900 to your given day. 


Output - Organize your output in a neat orderly fashion.  Print your results to an output file.  Write a statement indicating the number of days since January 1, 1900 to the year before your current year.  Part of your grade calculation reflects how readable your output is.




1) Your source code

2) Your input file

3) Your output file

4) Grading Rubric with your name printed on the top.  Attach as page 1 of your package.