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Fix %S formatting for chrono durations with leading zeroes (#3814)

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This commit is contained in:
js324
2024-02-07 12:47:32 -05:00
committed by GitHub
parent e17bc67547
commit 34f415b56e
2 changed files with 26 additions and 7 deletions
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19
include/fmt/chrono.h
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@@ -1151,18 +1151,23 @@ void write_fractional_seconds(OutputIt& out, Duration d, int precision = -1) {
out = std::fill_n(out, leading_zeroes, '0');
out = format_decimal<Char>(out, n, num_digits).end;
}
} else {
} else if (precision > 0) {
*out++ = '.';
leading_zeroes = (std::min)(leading_zeroes, precision);
out = std::fill_n(out, leading_zeroes, '0');
int remaining = precision - leading_zeroes;
if (remaining != 0 && remaining < num_digits) {
n /= to_unsigned(detail::pow10(to_unsigned(num_digits - remaining)));
out = format_decimal<Char>(out, n, remaining).end;
out = std::fill_n(out, leading_zeroes, '0');
if (remaining < num_digits) {
int num_truncated_digits = num_digits - remaining;
n /= to_unsigned(detail::pow10(to_unsigned(num_truncated_digits)));
if (n) {
out = format_decimal<Char>(out, n, remaining).end;
}
return;
}
out = format_decimal<Char>(out, n, num_digits).end;
remaining -= num_digits;
if (n) {
out = format_decimal<Char>(out, n, num_digits).end;
remaining -= num_digits;
}
out = std::fill_n(out, remaining, '0');
}
}