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#![feature(f16, f128, float_gamma, float_minimum_maximum, cfg_target_has_reliable_f16_f128)]
#![expect(internal_features)] // for reliable_f16_f128
use std::fmt;
use std::ops::{Add, Div, Mul, Rem, Sub};
/// Verify that floats are within a tolerance of each other, 1.0e-6 by default.
macro_rules! assert_approx_eq {
($a:expr, $b:expr) => {{ assert_approx_eq!($a, $b, 1.0e-6) }};
($a:expr, $b:expr, $lim:expr) => {{
let (a, b) = (&$a, &$b);
let diff = (*a - *b).abs();
assert!(
diff <= $lim,
"{a:?} is not approximately equal to {b:?} (threshold {lim:?}, difference {diff:?})",
lim = $lim
);
}};
}
/// Helper function for testing numeric operations
pub fn test_num<T>(ten: T, two: T)
where
T: PartialEq
+ Add<Output = T>
+ Sub<Output = T>
+ Mul<Output = T>
+ Div<Output = T>
+ Rem<Output = T>
+ fmt::Debug
+ Copy,
{
assert_eq!(ten.add(two), ten + two);
assert_eq!(ten.sub(two), ten - two);
assert_eq!(ten.mul(two), ten * two);
assert_eq!(ten.div(two), ten / two);
assert_eq!(ten.rem(two), ten % two);
}
mod f128;
mod f16;
mod f32;
mod f64;
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