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uucore: format: Fix uppercase hex floating point printing

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Accidentally broke this use case when refactoring.

Added a test as well.
This commit is contained in:
Nicolas Boichat 2025-03-20 20:43:09 +01:00 • committed by Sylvestre Ledru
parent e6c24b245a
commit d678e5320f
1 changed files with 15 additions and 1 deletions
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16
src/uucore/src/lib/features/format/num_format.rs
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@ -585,7 +585,10 @@ fn format_float_hexadecimal(
}; };
// Convert "XXX" to "X.XX": that divides by 16^precision = 2^(4*precision), so add that to the exponent. // Convert "XXX" to "X.XX": that divides by 16^precision = 2^(4*precision), so add that to the exponent.
let digits = frac2.to_str_radix(16); let mut digits = frac2.to_str_radix(16);
if case == Case::Uppercase {
digits.make_ascii_uppercase();
}
let (first_digit, remaining_digits) = digits.split_at(1); let (first_digit, remaining_digits) = digits.split_at(1);
let exponent = exp2 + (4 * precision) as i64; let exponent = exp2 + (4 * precision) as i64;
@ -914,6 +917,17 @@ mod test {
assert_eq!(f("0"), "0x0.p+0"); assert_eq!(f("0"), "0x0.p+0");
assert_eq!(f("0.125"), "0x8.p-6"); assert_eq!(f("0.125"), "0x8.p-6");
assert_eq!(f("256.0"), "0x8.p+5"); assert_eq!(f("256.0"), "0x8.p+5");
let f = |x| {
format_float_hexadecimal(
&BigDecimal::from_str(x).unwrap(),
6,
Case::Uppercase,
ForceDecimal::No,
)
};
assert_eq!(f("0.00001"), "0xA.7C5AC4P-20");
assert_eq!(f("0.125"), "0x8.000000P-6");
} }
#[test] #[test]