July 2013
Intermediate to advanced
144 pages
4h 50m
English
book
Object-Oriented Computation in C++ and Java: A Practical Guide to Design Patterns for Object-Oriented Computing
by Conrad Weisert
Content preview from Object-Oriented Computation in C++ and Java: A Practical Guide to Design Patterns for Object-Oriented Computing
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5. The Point-Extent Pattern for Pairs of Numeric Types
5.1. Non-additive numeric types
5.1.1. Our first non-additive type: Date
Second only to amounts of money, dates are the most common data in commercial applications. Therefore, for business software, as well as many other applications, we certainly need a Date class.
As soon as we start looking at binary arithmetic operators, we see that the additive pattern we exploited in the previous chapter is inapplicable.
What is the sum of two dates? What do we get by adding July 4, 1776, to December 7, 1941? Obviously, that sum is nonsense, and we’ll want to make it illegal.
5.1.2. Need for a companion ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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