hxd/core-decimal-calc
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cleanup

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This commit is contained in:
Hexa Dust
2025-07-18 21:19:30 +01:00
parent 65c7e3a0cf
commit 028e85b0bf
1 changed files with 13 additions and 12 deletions
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25
src/lib.rs
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@@ -1,4 +1,4 @@
#![no_std] // #![no_std]
use core::{error::Error, fmt::Display}; use core::{error::Error, fmt::Display};
#[cfg(not(test))] #[cfg(not(test))]
@@ -95,13 +95,13 @@ impl<const S: usize, E: PrimInt + Unsigned> TryFrom<Decimal<S, E>> for f64 {
exponent, exponent,
} = val; } = val;
let mut f: f64 = 0.0; let mut e = exponent.to_i32().ok_or(DecimalError::ExponentOverflow)?;
if minus_exponent {
e = -e;
}
let e = 10.0f64.powi(e);
let e = if minus_exponent { let mut f: f64 = 0.0;
10.0f64.powi(-exponent.to_i32().ok_or(DecimalError::ExponentOverflow)?)
} else {
10.0f64.powi(exponent.to_i32().ok_or(DecimalError::ExponentOverflow)?)
};
for i in (0..S).rev() { for i in (0..S).rev() {
f /= 10.0; f /= 10.0;
@@ -253,9 +253,10 @@ mod tests {
assert_eq!(f64::try_from(dec).unwrap(), -0.0133742); assert_eq!(f64::try_from(dec).unwrap(), -0.0133742);
} }
// #[test] #[test]
// fn decimal_to_float_max() { #[ignore = "not working due to precission issues"]
// let dec = Decimal::<16>::try_from(f64::MAX / 2.0).unwrap(); fn decimal_to_float_max() {
// assert_eq!(f64::try_from(dec).unwrap(), f64::MAX / 2.0); let dec = Decimal::<16>::try_from(f64::MAX).unwrap();
// } assert_eq!(f64::try_from(dec).unwrap(), f64::MAX);
}
} }