August 2014
Intermediate to advanced
120 pages
2h 45m
English
Content preview from Mastering Clojure MacrosBecome 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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Moving Execution to Compile Time
If you were playing golf, where the lowest number of strokes wins, would you rather get a hole-in-one or skip the hole entirely? Assuming that’s a legal thing to do (it’s not) and that you don’t enjoy playing the game in the first place (your mileage may vary), zero is clearly a better score than one.
When it comes to maintenance, the best code is no code at all.[20] The fastest code is code that doesn’t need to execute at runtime. In our case, the lowest number of instructions wins! Remember that we can consider macros as not even existing at runtime; this is a clear opportunity for us to speed things up.
The caveat is that in order to move expensive computations to compile time, we need access to all of the ...
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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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