12.1. How Ruby’s I/O system is put together
The IO class handles all input and output streams either by itself or via its descendant classes, particularly File. To a large extent, IO’s API consists of wrappers around system library calls, with some enhancements and modifications. The more familiar you are with the C standard library, the more at home you’ll feel with methods like seek, getc, and eof?. Likewise, if you’ve used another high-level language that also has a fairly close-fitting wrapper API around those library methods, you’ll recognize their equivalents in Ruby. But even if you’re not a systems or C programmer, you’ll get the hang of it quickly.
12.1.1. The IO class
IO objects represent readable and/or writable connections to disk ...
Get The Well-Grounded Rubyist, Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
