60 lines
1.4 KiB
Rust
60 lines
1.4 KiB
Rust
#![cfg(feature = "compact")]
|
|
#![allow(dead_code)]
|
|
|
|
use minimal_lexical::bellerophon::bellerophon;
|
|
use minimal_lexical::extended_float::{extended_to_float, ExtendedFloat};
|
|
use minimal_lexical::num::Float;
|
|
use minimal_lexical::number::Number;
|
|
|
|
pub fn bellerophon_test<F: Float + core::fmt::Debug>(
|
|
xmant: u64,
|
|
xexp: i32,
|
|
many_digits: bool,
|
|
ymant: u64,
|
|
yexp: i32,
|
|
) {
|
|
let num = Number {
|
|
exponent: xexp,
|
|
mantissa: xmant,
|
|
many_digits,
|
|
};
|
|
let xfp = bellerophon::<F>(&num);
|
|
let yfp = ExtendedFloat {
|
|
mant: ymant,
|
|
exp: yexp,
|
|
};
|
|
// Given us useful error messages if the floats are valid.
|
|
if xfp.exp >= 0 && yfp.exp >= 0 {
|
|
assert!(
|
|
xfp == yfp,
|
|
"x != y, xfp={:?}, yfp={:?}, x={:?}, y={:?}",
|
|
xfp,
|
|
yfp,
|
|
extended_to_float::<F>(xfp),
|
|
extended_to_float::<F>(yfp)
|
|
);
|
|
} else {
|
|
assert_eq!(xfp, yfp);
|
|
}
|
|
}
|
|
|
|
pub fn compute_float32(q: i32, w: u64) -> (i32, u64) {
|
|
let num = Number {
|
|
exponent: q,
|
|
mantissa: w,
|
|
many_digits: false,
|
|
};
|
|
let fp = bellerophon::<f32>(&num);
|
|
(fp.exp, fp.mant)
|
|
}
|
|
|
|
pub fn compute_float64(q: i32, w: u64) -> (i32, u64) {
|
|
let num = Number {
|
|
exponent: q,
|
|
mantissa: w,
|
|
many_digits: false,
|
|
};
|
|
let fp = bellerophon::<f64>(&num);
|
|
(fp.exp, fp.mant)
|
|
}
|