Algorithm to add or subtract days from a date?

Question

I\'m trying to write a Date class in an attempt to learn C++.

I\'m trying to find an algorithm to add or subtract days to a date, where Day starts from 1 and Month s

Answer 1

One approach is to map the date to the Julian number of the date, do your integer operations and then transform back.

You will find plenty of resources for the julian functions.