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Implement %j specifier for std::chrono::duration (#3732)

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This adds support for `%j` presentation type for duration types:

> "If the type being formatted is a specialization of duration, the decimal
number of days without padding."

Fixes #3643.
This commit is contained in:
Ivan Shapovalov
2023-12-03 19:29:58 +04:00
committed by GitHub
parent f575089243
commit 71bd51e6c2
2 changed files with 16 additions and 4 deletions
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8
include/fmt/chrono.h
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@@ -1622,6 +1622,7 @@ struct chrono_format_checker : null_chrono_spec_handler<chrono_format_checker> {
template <typename Char>
FMT_CONSTEXPR void on_text(const Char*, const Char*) {}
FMT_CONSTEXPR void on_day_of_year() {}
FMT_CONSTEXPR void on_24_hour(numeric_system, pad_type) {}
FMT_CONSTEXPR void on_12_hour(numeric_system, pad_type) {}
FMT_CONSTEXPR void on_minute(numeric_system, pad_type) {}
@@ -1806,6 +1807,7 @@ struct chrono_formatter {
return true;
}
Rep days() const { return static_cast<Rep>(s.count() / 86400); }
Rep hour() const { return static_cast<Rep>(mod((s.count() / 3600), 24)); }
Rep hour12() const {
@@ -1884,10 +1886,14 @@ struct chrono_formatter {
void on_dec0_week_of_year(numeric_system) {}
void on_dec1_week_of_year(numeric_system) {}
void on_iso_week_of_year(numeric_system) {}
void on_day_of_year() {}
void on_day_of_month(numeric_system) {}
void on_day_of_month_space(numeric_system) {}
void on_day_of_year() {
if (handle_nan_inf()) return;
write(days(), 0);
}
void on_24_hour(numeric_system ns, pad_type pad) {
if (handle_nan_inf()) return;