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Formats floating-point negative zero correctly #153

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Formats floating-point negative zero correctly #153

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ed7953d
check explicitly for zero components for absolute value
PaulXiCao Oct 26, 2025
05e45e3
DRY cleanup via lambda
PaulXiCao Oct 26, 2025
c17e74d
add tests
PaulXiCao Oct 26, 2025
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DRY cleanup via lambda
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@PaulXiCao
PaulXiCao committed Oct 26, 2025
commit 05e45e39d623f356a927fab827522b6897af035e
23 changes: 10 additions & 13 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1238,20 +1238,17 @@ impl<T: Clone + Num> One for Complex<T> {

macro_rules! write_complex {
($f:ident, $t:expr, $prefix:expr, $re:expr, $im:expr, $T:ident) => {{
let abs_re = if $re.is_zero() {
$T::zero()
} else if $re < Zero::zero() {
$T::zero() - $re.clone()
} else {
$re.clone()
};
let abs_im = if $im.is_zero() {
$T::zero()
} else if $im < Zero::zero() {
$T::zero() - $im.clone()
} else {
$im.clone()
let abs = |x: &$T| {
if x.is_zero() {
$T::zero()
} else if *x < Zero::zero() {
$T::zero() - x.clone()
} else {
x.clone()
}
};
let abs_re = abs(&$re);
let abs_im = abs(&$im);

return if let Some(prec) = $f.precision() {
fmt_re_im(
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