October 2015
Beginner to intermediate
400 pages
14h 44m
English
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2.5 Type Declarations
The type of a variable or expression defines the characteristics of the values it may take on, such as their size (number of bits or number of elements, perhaps), how they are represented internally, the intrinsic operations that can be performed on them, and the methods associated with them.
In any program there are variables that share the same
representation but signify very different concepts. For instance,
an int could be used to represent a loop index, a
timestamp, a file descriptor, or a month; a float64 could represent
a velocity in meters per second or a temperature in one of several
scales; and a
string could represent a password or the name of a color.
A type declaration defines a new named type that has ...
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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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