58 lines
1.1 KiB
Rust
58 lines
1.1 KiB
Rust
#![warn(clippy::reversed_empty_ranges)]
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#![allow(clippy::uninlined_format_args)]
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fn main() {
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const MAX_LEN: usize = 42;
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for i in (0..10).rev() {
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println!("{}", i);
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}
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for i in (0..=10).rev() {
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println!("{}", i);
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}
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for i in (0..MAX_LEN).rev() {
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println!("{}", i);
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}
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for i in 5..=5 {
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// not an error, this is the range with only one element “5”
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println!("{}", i);
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}
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for i in 0..10 {
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// not an error, the start index is less than the end index
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println!("{}", i);
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}
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for i in -10..0 {
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// not an error
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println!("{}", i);
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}
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for i in (0..10).rev().map(|x| x * 2) {
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println!("{}", i);
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}
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// testing that the empty range lint folds constants
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for i in (5 + 4..10).rev() {
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println!("{}", i);
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}
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for i in ((3 - 1)..(5 + 2)).rev() {
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println!("{}", i);
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}
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for i in (2 * 2)..(2 * 3) {
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// no error, 4..6 is fine
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println!("{}", i);
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}
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let x = 42;
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for i in x..10 {
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// no error, not constant-foldable
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println!("{}", i);
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}
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}
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