Rust (programming language): Difference between revisions

Revision as of 03:17, 9 August 2025

Revision as of 01:45, 10 August 2025

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==== Primitive types ====

[[Integer type]]s in Rust are named based on the [[signedness]] and the number of bits the type takes. For example, {{rust|i32}} is a signed integer that takes 32 bits of storage, whereas {{coderust|u8}} is unsigned and only takes 8 bits of storage. {{rust|isize}} and {{rust|usize}} take storage depending on the architecture of the computer that runs the code, for example, on computers with [[32-bit architecture]]s, both types will take up 32 bits of space.

By default, integer literals are in base-10, but different [[radix|radices]] are supported with prefixes, for example, {{rust|0b11}} for [[binary number]]s, {{rust|0o567}} for [[octal]]s, and {{rust|0xDB}} for [[hexadecimal]]s. By default, integer literals default to {{rust|i32}} as its type. Suffixes such as {{rust|4u32}} can be used to explicitly set the type of a literal.{{sfn|Klabnik|Nichols|2023|pp=36-38}} Byte literals such as {{rust|b'X'}} are available to represent the [[ASCII]] value (as a {{rust|u8}}) of a specific character.{{sfn|Klabnik|Nichols|2023|p=502}}