Fix comparison of empty string to numeric f64 sort
@@ -383,13 +383,17 @@ fn permissive_f64_parse(a: &str) -> f64 {
// because there's no way to handle both CSV and thousands separators without a new flag.
// GNU sort treats "1,234" as "1" in numeric, so maybe it's fine.
// GNU sort treats "NaN" as non-number in numeric, so it needs special care.
- let sa: &str = a.split_whitespace().next().unwrap();
+ match a.split_whitespace().next() {
+ None => std::f64::NEG_INFINITY,
+ Some(sa) => {
match sa.parse::<f64>() {
Ok(a) if a.is_nan() => std::f64::NEG_INFINITY,
Ok(a) => a,
Err(_) => std::f64::NEG_INFINITY,
}
}
+ }
+}
/// Compares two floating point numbers, with errors being assumed to be -inf.
/// Stops coercing at the first whitespace char, so 1e2 will parse as 100 but
