rust-clippy/tests/compile-fail/zero_div_zero.rs
2016-02-07 13:26:34 +01:00

20 lines
1 KiB
Rust

#![feature(plugin)]
#![plugin(clippy)]
#[allow(unused_variables)]
#[deny(zero_divided_by_zero)]
fn main() {
let nan = 0.0 / 0.0; //~ERROR constant division of 0.0 with 0.0 will always result in NaN
//~^ equal expressions as operands to `/`
let f64_nan = 0.0 / 0.0f64; //~ERROR constant division of 0.0 with 0.0 will always result in NaN
//~^ equal expressions as operands to `/`
let other_f64_nan = 0.0f64 / 0.0; //~ERROR constant division of 0.0 with 0.0 will always result in NaN
//~^ equal expressions as operands to `/`
let one_more_f64_nan = 0.0f64/0.0f64; //~ERROR constant division of 0.0 with 0.0 will always result in NaN
//~^ equal expressions as operands to `/`
let zero = 0.0;
let other_zero = 0.0;
let other_nan = zero / other_zero; // fine - this lint doesn't propegate constants.
let not_nan = 2.0/0.0; // not an error: 2/0 = inf
let also_not_nan = 0.0/2.0; // not an error: 0/2 = 0
}