October 2024
Intermediate to advanced
272 pages
6h 54m
English
Content preview from Seven Obscure Languages in Seven WeeksBecome 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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Branching
“Branching” is a fancy name for the infamous GOTO statement. To be fair, it became infamous only after Edsger Dijkstra, one of the founding fathers of modern computer science, published his open letter “Go To Statement Considered Harmful” [Dij68] in 1968. Before that, GOTO had been considered a preferred way to control program execution flow. One can prove that GOTO suffices for implementing conditional statements, loops, and choices. A powerful tool it is, so don’t blame APL for depending on branching.
You can use the branch arrow →L only in a function definition, not in the interaction mode. The function depends on line numbers and labels (neither available in the interaction mode). So, first, a word about labels.
An APL label ...
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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.