November 2017
Intermediate to advanced
264 pages
5h 45m
English
Content preview from Rust Essentials - Second Edition
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Values and primitive types
Constants that have been initialized have a value. Values exist in different types: 70 is an integer, 3.14 is a float, and Z and θ are the type of a character. Characters are Unicode values that take four bytes of memory each. Godzilla is a string of type &str (which is Unicode UTF8 by default), true and false are the type of Boolean values. Integers can be written in different formats:
- Hexadecimal format with 0x, like 0x46 for 70.
- Octal format with 0o, like 0o106 for 70.
- Binary format with 0b, like 0b1000110.
- Underscores can be used for readability, as in 1_000_000. Sometimes the compiler will urge you to indicate more explicitly the type of number with a suffix, for example (the number after u or i is the number ...
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