December 2015
Intermediate to advanced
400 pages
13h 3m
English
Content preview from Swift Programming: The Big Nerd Ranch Guide
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24 Memory Management and ARC
All computer programs use memory. Most computer programs use memory dynamically: as a program runs, it allocates and deallocates memory as needed. Swift’s stance on memory management is relatively unique. Most memory issues are handled for you automatically, but Swift does not use a garbage collector (a common tool for automatic memory management in programming languages). Instead, Swift uses a system of reference counting. In this chapter, you will investigate how that system works and learn what you need to be aware of to avoid memory leaks.
Memory Allocation
The memory allocation and management for value types – enumerations and structures – is very simple. When you create a new instance ...
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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.