November 2010
Intermediate to advanced
504 pages
12h 45m
English
Content preview from Land of LispBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Common Lisp Structures
A structure is an advanced datatype available in Common Lisp. Structures and their properties can be a useful way to represent data in your code.
Working with Structures
Structures can be used to represent objects with properties, as you might find in a typical object-oriented programming (OOP) language using the defstruct command, like so:
>(defstruct personnameagewaist-sizefavorite-color)PERSON
According to the definition in this structure, a person has four properties (also called slots by Lispers): name, age, waist-size, and favorite-color.
Having defined this structure, we can create instances of a person using the make-person command, a special function that defstruct has automatically created for us:
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.