21 lines
537 B
Rust
21 lines
537 B
Rust
|
#![feature(core_intrinsics)]
|
||
|
|
|
||
|
|
use std::intrinsics::{fadd_fast, fsub_fast, fmul_fast, fdiv_fast, frem_fast};
|
||
|
|
|
||
|
|
#[inline(never)]
|
||
|
|
pub fn test_operations(a: f64, b: f64) {
|
||
|
|
// make sure they all map to the correct operation
|
||
|
|
unsafe {
|
||
|
|
assert_eq!(fadd_fast(a, b), a + b);
|
||
|
|
assert_eq!(fsub_fast(a, b), a - b);
|
||
|
|
assert_eq!(fmul_fast(a, b), a * b);
|
||
|
|
assert_eq!(fdiv_fast(a, b), a / b);
|
||
|
|
assert_eq!(frem_fast(a, b), a % b);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
test_operations(1., 2.);
|
||
|
|
test_operations(10., 5.);
|
||
|
|
}
|