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Return empty WordNum result when cents rounding carries to 1e12

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Found while testing crates/js/src/formcalc.rs:2024-2050 (word_num)

Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
NetterSilver
2026-10-20 17:38:34 +00:00
co-authored by Claude Haiku 5.5
parent 22bedbf2af
commit 3246587e85
1 changed files with 5 additions and 0 deletions
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crates/js/src/formcalc.rs
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@@ -2027,6 +2027,10 @@ fn word_num(n: f64, cents: bool) -> String {
}
let cents_total = (n * 100.0).round() as u64;
let whole = if cents { cents_total / 100 } else { n.trunc() as u64 };
if whole >= 1_000_000_000_000 {
// Rounding to cents carried past the supported range.
return String::new();
}
let mut parts = Vec::new();
let groups = [(1_000_000_000u64, "Billion"), (1_000_000, "Million"), (1_000, "Thousand")];
let mut rest = whole;
@@ -2596,6 +2600,7 @@ mod tests {
assert_eq!(parse_date("2/3/01", "M/D/YY"), Some((2001, 2, 3)));
assert_eq!(format_date(2001, 2, 3, "MMMM D, YYYY"), "February 3, 2001");
assert_eq!(word_num(1234.5, true), "One Thousand Two Hundred Thirty-Four Dollars And 50 Cents");
assert_eq!(word_num(999_999_999_999.999, true), "");
assert_eq!(num_text(3.0), "3");
assert_eq!(num_text(2.5), "2.5");
assert_eq!(num_text(0.1 + 0.2), "0.3");