Rust generics: Difference between revisions
From wikinotes
Line 19: | Line 19: | ||
they are not limited to a single character. | they are not limited to a single character. | ||
<syntaxhighlight lang="rust"> | <syntaxhighlight lang="rust"> | ||
struct Coord< | struct Coord<XVAL, YVAL, ZVAL> { | ||
x: | x: XVAL, | ||
y: | y: YVAL, | ||
z: | z: ZVAL, | ||
} | } | ||
</syntaxhighlight> | </syntaxhighlight> | ||
</blockquote><!-- Example --> | </blockquote><!-- Example --> |
Revision as of 19:27, 8 February 2023
Generics allow you to abstract a function so that it accepts a range of types.
Functions, Structs, Enums etc. can all be expressed as generics
Example
// everywhere 'T' shows up, it represents the type. struct Coord<T> { x: T, y: T, z: T, } let c = Coord{1, 2, 3}; // valid let c = Coord{1, 2u8, 3}; // invalid! 1/3 are i32, but 2u8 is a u8.Use as many generic types as you'd like within a signature,
they are not limited to a single character.struct Coord<XVAL, YVAL, ZVAL> { x: XVAL, y: YVAL, z: ZVAL, }