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Merge pull request #618 from MarekSpodBiedry:issue-540

This commit is contained in:
Brandon Thomas 2026-10-12 23:21:40 -04:00
parent 6de925c1b6 555635e13e
commit 09c719623b
1 changed files with 15 additions and 1 deletions
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16
crates/functions/src/math.rs
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@ -75,7 +75,14 @@ fn round_dir(x: f64, digits: i32, up: bool) -> f64 {
}
let s = clean(scaled);
let r = if up { s.ceil() } else { s.floor() };
let out = if neg { r * f } else { clean(r / f) };
// r == 0 with an infinite scale would be 0 * inf = NaN (#NUM!); the result is simply zero.
let out = if !neg {
clean(r / f)
} else if r == 0.0 {
0.0
} else {
r * f
};
if x < 0.0 { -out } else { out }
}
@ -1373,6 +1380,13 @@ mod tests {
close(ev2("ROUNDDOWN", -3.9, 0.0), -3.0);
close(ev2("ROUNDDOWN", 2.71989, 3.0), 2.719);
close(ev2("ROUNDDOWN", 31415.92654, -2.0), 31400.0);
for digits in [-308.0, -309.0, -400.0] {
for x in [1234.0, -1234.0, 0.5] {
close(ev2("ROUNDDOWN", x, digits), 0.0);
close(ev2("TRUNC", x, digits), 0.0);
}
}
assert!(matches!(ev2("ROUNDUP", 1234.0, -309.0), Value::Error(CellError::Num)));
close(ev2("ROUNDUP", 0.1 + 0.2, 1.0), 0.3);
close(ev2("TRUNC", 8.987, 2.0), 8.98);
close(ev1("TRUNC", -8.9), -8.0);