mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-25 00:03:43 +00:00
38d4ac7cea
Discussion previously happened in https://github.com/rust-lang/rust/pull/43498
25 lines
744 B
Rust
25 lines
744 B
Rust
#[deny(clippy::naive_bytecount)]
|
|
fn main() {
|
|
let x = vec![0_u8; 16];
|
|
|
|
let _ = x.iter().filter(|&&a| a == 0).count(); // naive byte count
|
|
|
|
let _ = (&x[..]).iter().filter(|&a| *a == 0).count(); // naive byte count
|
|
|
|
let _ = x.iter().filter(|a| **a > 0).count(); // not an equality count, OK.
|
|
|
|
let _ = x.iter().map(|a| a + 1).filter(|&a| a < 15).count(); // not a slice
|
|
|
|
let b = 0;
|
|
|
|
let _ = x.iter().filter(|_| b > 0).count(); // woah there
|
|
|
|
let _ = x.iter().filter(|_a| b == b + 1).count(); // nothing to see here, move along
|
|
|
|
let _ = x.iter().filter(|a| b + 1 == **a).count(); // naive byte count
|
|
|
|
let y = vec![0_u16; 3];
|
|
|
|
let _ = y.iter().filter(|&&a| a == 0).count(); // naive count, but not bytes
|
|
}
|