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// run-rustfix
// aux-build:macro_rules.rs
#![feature(custom_inner_attributes)]
#![warn(clippy::manual_rem_euclid)]
#[macro_use]
extern crate macro_rules;
macro_rules! internal_rem_euclid {
() => {
let value: i32 = 5;
let _: i32 = value.rem_euclid(4);
};
}
fn main() {
let value: i32 = 5;
let _: i32 = value.rem_euclid(4);
let _: i32 = value.rem_euclid(4);
let _: i32 = value.rem_euclid(4);
let _: i32 = value.rem_euclid(4);
let _: i32 = 1 + value.rem_euclid(4);
let _: i32 = (3 + value % 4) % 4;
let _: i32 = (-4 + value % -4) % -4;
let _: i32 = ((5 % 4) + 4) % 4;
// Make sure the lint does not trigger if it would cause an error, like with an ambiguous
// integer type
let not_annotated = 24;
let _ = ((not_annotated % 4) + 4) % 4;
let inferred: _ = 24;
let _ = ((inferred % 4) + 4) % 4;
// For lint to apply the constant must always be on the RHS of the previous value for %
let _: i32 = 4 % ((value % 4) + 4);
let _: i32 = ((4 % value) + 4) % 4;
// Lint in internal macros
internal_rem_euclid!();
// Do not lint in external macros
manual_rem_euclid!();
}
// Should lint for params too
pub fn rem_euclid_4(num: i32) -> i32 {
num.rem_euclid(4)
}
// Constant version came later, should still lint
pub const fn const_rem_euclid_4(num: i32) -> i32 {
num.rem_euclid(4)
}
pub fn msrv_1_37() {
#![clippy::msrv = "1.37"]
let x: i32 = 10;
let _: i32 = ((x % 4) + 4) % 4;
}
pub fn msrv_1_38() {
#![clippy::msrv = "1.38"]
let x: i32 = 10;
let _: i32 = x.rem_euclid(4);
}
// For const fns:
pub const fn msrv_1_51() {
#![clippy::msrv = "1.51"]
let x: i32 = 10;
let _: i32 = ((x % 4) + 4) % 4;
}
pub const fn msrv_1_52() {
#![clippy::msrv = "1.52"]
let x: i32 = 10;
let _: i32 = x.rem_euclid(4);
}
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