Rust errors / Patterns and matching
Rust compiler error · checked with rustc 1.99.0
Rust error E0783: `...` range patterns are deprecated
What it meansThe range pattern ... is no longer allowed.
What rustc prints
error[E0783]: `...` range patterns are deprecated
--> main.rs:4:5
|
4 | 0...9 => println!("Got a number less than 10"), // error!
| ^---^
| |
| help: use `..=` for an inclusive rangeReal output of rustc 1.99.0 compiling the official example below (2021 edition). Your names and line numbers will differ; the first line is the part to match.
E0783Patterns and matching
Activein rustc 1.99.0
4related errors linked below
The compiler team's explanation
The range pattern ... is no longer allowed.
Erroneous code example:
match 2u8 {
0...9 => println!("Got a number less than 10"), // error!
_ => println!("Got a number 10 or more"),
}Older Rust code using previous editions allowed ... to stand for inclusive ranges which are now signified using ..=.
To make this code compile replace the ... with ..=.
match 2u8 {
0..=9 => println!("Got a number less than 10"), // ok!
_ => println!("Got a number 10 or more"),
}From rustc --explain E0783 (1.99.0), part of the Rust project, MIT or Apache-2.0. Official page.
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