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[libc++][NFC] Remove unimplemented parts of chrono synopsis
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Several parts in the `chrono` synopsis for C++20 are not yet
implemented. The current recommendation is that things are added to the
synopsis when implemented -- not beforehand. As such, remove the
not-yet-implemented parts to avoid confusion.

Reviewed By: ldionne, Quuxplusone, #libc

Differential Revision: https://reviews.llvm.org/D111922
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@JoeLoser
JoeLoser committed Oct 25, 2021
1 parent 065ac30 commit d081d75
Showing 1 changed file with 0 additions and 145 deletions.
145 changes: 0 additions & 145 deletions libcxx/include/chrono
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Expand Up @@ -148,11 +148,6 @@ template <class Clock, class Duration1, class Duration2>
namespace chrono {
template<class T> struct is_clock; // C++20
template<class T> inline constexpr bool is_clock_v = is_clock<T>::value; // C++20
// duration arithmetic
template <class Rep1, class Period1, class Rep2, class Period2>
constexpr
Expand Down Expand Up @@ -281,18 +276,6 @@ template <class Duration>
using sys_seconds = sys_time<seconds>; // C++20
using sys_days = sys_time<days>; // C++20
class utc_clock; // C++20
template <class Duration>
using utc_time = time_point<utc_clock, Duration>; // C++20
using utc_seconds = utc_time<seconds>; // C++20
class tai_clock; // C++20
template <class Duration>
using tai_time = time_point<tai_clock, Duration>; // C++20
using tai_seconds = tai_time<seconds>; // C++20
class file_clock; // C++20
template<class Duration>
Expand All @@ -319,12 +302,6 @@ template<class Duration>
using local_seconds = local_time<seconds>;
using local_days = local_time<days>;
// 25.7.9, time_point conversions template<class DestClock, class SourceClock> // C++20
struct clock_time_conversion;
template<class DestClock, class SourceClock, class Duration>
auto clock_cast(const time_point<SourceClock, Duration>& t);
// 25.8.2, class last_spec // C++20
struct last_spec;
Expand Down Expand Up @@ -639,39 +616,12 @@ public:
constexpr precision to_duration() const noexcept;
};
template <class charT, class traits, class Duration>
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>& os, hh_mm_ss<Duration> const& hms);
// 26.10, 12/24 hour functions
constexpr bool is_am(hours const& h) noexcept;
constexpr bool is_pm(hours const& h) noexcept;
constexpr hours make12(const hours& h) noexcept;
constexpr hours make24(const hours& h, bool is_pm) noexcept;
// 25.10.2, time zone database // C++20
struct tzdb;
class tzdb_list;
// 25.10.2.3, time zone database access // C++20
const tzdb& get_tzdb();
tzdb_list& get_tzdb_list();
const time_zone* locate_zone(string_view tz_name);
const time_zone* current_zone();
// 25.10.2.4, remote time zone database support // C++20
const tzdb& reload_tzdb();
string remote_version();
// 25.10.3, exception classes // C++20
class nonexistent_local_time;
class ambiguous_local_time;
// 25.10.4, information classes // C++20
struct sys_info;
struct local_info;
// 25.10.5, class time_zone // C++20
enum class choose {earliest, latest};
class time_zone;
Expand All @@ -682,101 +632,6 @@ bool operator>(const time_zone& x, const time_zone& y) noexcept;
bool operator<=(const time_zone& x, const time_zone& y) noexcept;
bool operator>=(const time_zone& x, const time_zone& y) noexcept;
// 25.10.6, class template zoned_traits // C++20
template<class T> struct zoned_traits;
// 25.10.7, class template zoned_time // C++20
template<class Duration, class TimeZonePtr = const time_zone*> class zoned_time;
using zoned_seconds = zoned_time<seconds>;
template<class Duration1, class Duration2, class TimeZonePtr>
bool operator==(const zoned_time<Duration1, TimeZonePtr>& x,
const zoned_time<Duration2, TimeZonePtr>& y);
template<class Duration1, class Duration2, class TimeZonePtr>
bool operator!=(const zoned_time<Duration1, TimeZonePtr>& x,
const zoned_time<Duration2, TimeZonePtr>& y);
// 25.10.8, leap second support // C++20
class leap;
bool operator==(const leap& x, const leap& y);
bool operator!=(const leap& x, const leap& y);
bool operator< (const leap& x, const leap& y);
bool operator> (const leap& x, const leap& y);
bool operator<=(const leap& x, const leap& y);
bool operator>=(const leap& x, const leap& y);
template<class Duration>
bool operator==(const leap& x, const sys_time<Duration>& y);
template<class Duration>
bool operator==(const sys_time<Duration>& x, const leap& y);
template<class Duration>
bool operator!=(const leap& x, const sys_time<Duration>& y);
template<class Duration>
bool operator!=(const sys_time<Duration>& x, const leap& y);
template<class Duration>
bool operator< (const leap& x, const sys_time<Duration>& y);
template<class Duration>
bool operator< (const sys_time<Duration>& x, const leap& y);
template<class Duration>
bool operator> (const leap& x, const sys_time<Duration>& y);
template<class Duration>
bool operator> (const sys_time<Duration>& x, const leap& y);
template<class Duration>
bool operator<=(const leap& x, const sys_time<Duration>& y);
template<class Duration>
bool operator<=(const sys_time<Duration>& x, const leap& y);
template<class Duration>
bool operator>=(const leap& x, const sys_time<Duration>& y);
template<class Duration>
bool operator>=(const sys_time<Duration>& x, const leap& y);
// 25.10.9, class link // C++20
class link;
bool operator==(const link& x, const link& y);
bool operator!=(const link& x, const link& y);
bool operator< (const link& x, const link& y);
bool operator> (const link& x, const link& y);
bool operator<=(const link& x, const link& y);
bool operator>=(const link& x, const link& y);
// 25.11, formatting // C++20
template<class charT, class Streamable>
basic_string<charT>
format(const charT* fmt, const Streamable& s);
template<class charT, class Streamable>
basic_string<charT>
format(const locale& loc, const charT* fmt, const Streamable& s);
template<class charT, class traits, class Alloc, class Streamable>
basic_string<charT, traits, Alloc>
format(const basic_string<charT, traits, Alloc>& fmt, const Streamable& s);
template<class charT, class traits, class Alloc, class Streamable>
basic_string<charT, traits, Alloc>
format(const locale& loc, const basic_string<charT, traits, Alloc>& fmt,
const Streamable& s);
// 25.12, parsing // C++20
template<class charT, class traits, class Alloc, class Parsable>
unspecified
parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp);
template<class charT, class traits, class Alloc, class Parsable>
unspecified
parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp,
basic_string<charT, traits, Alloc>& abbrev);
template<class charT, class traits, class Alloc, class Parsable>
unspecified
parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp,
minutes& offset);
template<class charT, class traits, class Alloc, class Parsable>
unspecified
parse(const basic_string<charT, traits, Alloc>& format, Parsable& tp,
basic_string<charT, traits, Alloc>& abbrev, minutes& offset);
// calendrical constants
inline constexpr last_spec last{}; // C++20
inline constexpr chrono::weekday Sunday{0}; // C++20
Expand Down

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