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Add const-ness tests for i32::signum

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This commit is contained in:
Dylan MacKenzie 2019-06-07 16:23:33 -07:00
parent bd899d02e9
commit f6611db1d5
1 changed files with 12 additions and 2 deletions
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14
src/test/run-pass/const-int-sign.rs
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@ -1,11 +1,21 @@
#![feature(const_int_sign)]
const NEGATIVE_A: bool = (-10i32).is_negative();
const NEGATIVE_B: bool = 10i32.is_negative();
const POSITIVE_A: bool= (-10i32).is_positive();
const POSITIVE_B: bool= 10i32.is_positive();
const POSITIVE_A: bool = (-10i32).is_positive();
const POSITIVE_B: bool = 10i32.is_positive();
const SIGNUM_POS: i32 = 10i32.signum();
const SIGNUM_NIL: i32 = 0i32.signum();
const SIGNUM_NEG: i32 = (-42i32).signum();
fn main() {
assert!(NEGATIVE_A);
assert!(!NEGATIVE_B);
assert!(!POSITIVE_A);
assert!(POSITIVE_B);
assert_eq!(SIGNUM_POS, 1);
assert_eq!(SIGNUM_NIL, 0);
assert_eq!(SIGNUM_NEG, -1);
}