rust-clippy/tests/ui/range_plus_minus_one.rs

59 lines
1.1 KiB
Rust

#![allow(unused_parens)]
#![allow(clippy::iter_with_drain)]
fn f() -> usize {
42
}
macro_rules! macro_plus_one {
($m: literal) => {
for i in 0..$m + 1 {
println!("{}", i);
}
};
}
macro_rules! macro_minus_one {
($m: literal) => {
for i in 0..=$m - 1 {
println!("{}", i);
}
};
}
#[warn(clippy::range_plus_one)]
#[warn(clippy::range_minus_one)]
fn main() {
for _ in 0..2 {}
for _ in 0..=2 {}
for _ in 0..3 + 1 {}
for _ in 0..=3 + 1 {}
for _ in 0..1 + 5 {}
for _ in 0..=1 + 5 {}
for _ in 1..1 + 1 {}
for _ in 1..=1 + 1 {}
for _ in 0..13 + 13 {}
for _ in 0..=13 - 7 {}
for _ in 0..(1 + f()) {}
for _ in 0..=(1 + f()) {}
let _ = ..11 - 1;
let _ = ..=11 - 1;
let _ = ..=(11 - 1);
let _ = (1..11 + 1);
let _ = (f() + 1)..(f() + 1);
const ONE: usize = 1;
// integer consts are linted, too
for _ in 1..ONE + ONE {}
let mut vec: Vec<()> = std::vec::Vec::new();
vec.drain(..);
macro_plus_one!(5);
macro_minus_one!(5);
}