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AK: Add binary and octal mode formatting for FixedPoint

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ronak69 2023-08-14 08:58:33 +00:00 • committed by Andrew Kaster
parent 352480338e
commit 2caf68fd03
3 changed files with 23 additions and 6 deletions
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7
AK/Format.cpp
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@ -403,9 +403,10 @@ ErrorOr<void> FormatBuilder::put_fixed_point(
// FIXME: overflows (not before: fraction_value = (2^precision - 1) and precision >= 20) (use wider integer type)
auto fraction = scale * fraction_value;
TRY(format_builder.put_u64(fraction, base, false, upper_case, true, use_separator, Align::Right, precision));
} else if (base == 16) {
auto fraction = fraction_value << ((4 - (precision % 4)) % 4);
TRY(format_builder.put_u64(fraction, base, false, upper_case, false, use_separator, Align::Right, precision/4 + (precision % 4 != 0), '0'));
} else if (base == 16 || base == 8 || base == 2) {
auto bits_per_character = log2(base);
auto fraction = fraction_value << ((bits_per_character - (precision % bits_per_character)) % bits_per_character);
TRY(format_builder.put_u64(fraction, base, false, upper_case, false, use_separator, Align::Right, precision / bits_per_character + (precision % bits_per_character != 0), '0'));
} else {
VERIFY_NOT_REACHED();
}