rustAnonymous field in Rust struct
Anonymous fields in Rust structs are fields that do not have a name associated with them. They are declared using the struct keyword followed by the type of the field. For example:
struct Point {
x: i32,
y: i32,
// Anonymous field
i32,
}
The anonymous field in the above example is of type i32. It can be accessed using the . operator, just like any other field in the struct. For example:
let p = Point { x: 10, y: 20, 30 };
println!("{}", p.2); // Prints 30
Code explanation
struct Point {- This is the start of the struct declaration.x: i32,- This is a named field of typei32.y: i32,- This is another named field of typei32.i32,- This is the anonymous field of typei32.let p = Point { x: 10, y: 20, 30 };- This is how an instance of the struct is created, with the anonymous field being set to30.println!("{}", p.2);- This is how the anonymous field is accessed, using the.operator and the index of the field (in this case2).
Helpful links
Related
- How to init zero struct in Rust
- Example of struct private field in Rust
- Example of Rust struct with closure
- Example of constant struct in Rust
- How to serialize struct to xml in Rust
- How to convert struct to protobuf in Rust
- Rust struct with one field example
- Rust struct without fields
- How to convert struct to bytes in Rust
- How to compare structs in Rust
More of Rust
- How to match whitespace with a regex in Rust?
- How to match a URL with a regex in Rust?
- How to replace strings using Rust regex?
- How to use non-capturing groups in Rust regex?
- Enum as string in Rust
- How to get pointer to struct in Rust
- How to replace all matches using Rust regex?
- Rust HashMap example
- How to use negation in Rust regex?
- How to use named capture groups in Rust regex?
See more codes...