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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___CHRONO_OSTREAM_H
#define _LIBCPP___CHRONO_OSTREAM_H
#include <__chrono/day.h>
#include <__chrono/duration.h>
#include <__chrono/month.h>
#include <__chrono/statically_widen.h>
#include <__chrono/weekday.h>
#include <__chrono/year.h>
#include <__concepts/same_as.h>
#include <__config>
#include <__format/format_functions.h>
#include <ostream>
#include <ratio>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_FORMAT)
namespace chrono {
// Depending on the type the return is a const _CharT* or a basic_string<_CharT>
template <class _CharT, class _Period>
_LIBCPP_HIDE_FROM_ABI auto __units_suffix() {
// TODO FMT LWG issue the suffixes are always char and not STATICALLY-WIDEN'ed.
if constexpr (same_as<typename _Period::type, atto>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "as");
else if constexpr (same_as<typename _Period::type, femto>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "fs");
else if constexpr (same_as<typename _Period::type, pico>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "ps");
else if constexpr (same_as<typename _Period::type, nano>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "ns");
else if constexpr (same_as<typename _Period::type, micro>)
# ifndef _LIBCPP_HAS_NO_UNICODE
return _LIBCPP_STATICALLY_WIDEN(_CharT, "\u00b5s");
# else
return _LIBCPP_STATICALLY_WIDEN(_CharT, "us");
# endif
else if constexpr (same_as<typename _Period::type, milli>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "ms");
else if constexpr (same_as<typename _Period::type, centi>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "cs");
else if constexpr (same_as<typename _Period::type, deci>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "ds");
else if constexpr (same_as<typename _Period::type, ratio<1>>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "s");
else if constexpr (same_as<typename _Period::type, deca>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "das");
else if constexpr (same_as<typename _Period::type, hecto>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "hs");
else if constexpr (same_as<typename _Period::type, kilo>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "ks");
else if constexpr (same_as<typename _Period::type, mega>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "Ms");
else if constexpr (same_as<typename _Period::type, giga>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "Gs");
else if constexpr (same_as<typename _Period::type, tera>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "Ts");
else if constexpr (same_as<typename _Period::type, peta>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "Ps");
else if constexpr (same_as<typename _Period::type, exa>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "Es");
else if constexpr (same_as<typename _Period::type, ratio<60>>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "min");
else if constexpr (same_as<typename _Period::type, ratio<3600>>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "h");
else if constexpr (same_as<typename _Period::type, ratio<86400>>)
return _LIBCPP_STATICALLY_WIDEN(_CharT, "d");
else if constexpr (_Period::den == 1)
return std::format(_LIBCPP_STATICALLY_WIDEN(_CharT, "[{}]s"), _Period::num);
else
return std::format(_LIBCPP_STATICALLY_WIDEN(_CharT, "[{}/{}]s"), _Period::num, _Period::den);
}
template <class _CharT, class _Traits, class _Rep, class _Period>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_FORMAT basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const duration<_Rep, _Period>& __d) {
basic_ostringstream<_CharT, _Traits> __s;
__s.flags(__os.flags());
__s.imbue(__os.getloc());
__s.precision(__os.precision());
__s << __d.count() << chrono::__units_suffix<_CharT, _Period>();
return __os << __s.str();
}
template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_FORMAT basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const day& __d) {
return __os
<< (__d.ok()
? std::format(_LIBCPP_STATICALLY_WIDEN(_CharT, "{:%d}"), __d)
// Note this error differs from the wording of the Standard. The
// Standard wording doesn't work well on AIX or Windows. There
// the formatted day seems to be either modulo 100 or completely
// omitted. Judging by the wording this is valid.
// TODO FMT Write a paper of file an LWG issue.
: std::format(_LIBCPP_STATICALLY_WIDEN(_CharT, "{:02} is not a valid day"), static_cast<unsigned>(__d)));
}
template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_FORMAT basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const month& __m) {
return __os << (__m.ok() ? std::format(__os.getloc(), _LIBCPP_STATICALLY_WIDEN(_CharT, "{:L%b}"), __m)
: std::format(__os.getloc(),
_LIBCPP_STATICALLY_WIDEN(_CharT, "{} is not a valid month"),
static_cast<unsigned>(__m))); // TODO FMT Standard mandated locale isn't used.
}
template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_FORMAT basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const year& __y) {
return __os << (__y.ok() ? std::format(_LIBCPP_STATICALLY_WIDEN(_CharT, "{:%Y}"), __y)
: std::format(_LIBCPP_STATICALLY_WIDEN(_CharT, "{:%Y} is not a valid year"), __y));
}
template <class _CharT, class _Traits>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_AVAILABILITY_FORMAT basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, const weekday& __wd) {
return __os << (__wd.ok() ? std::format(__os.getloc(), _LIBCPP_STATICALLY_WIDEN(_CharT, "{:L%a}"), __wd)
: std::format(__os.getloc(), // TODO FMT Standard mandated locale isn't used.
_LIBCPP_STATICALLY_WIDEN(_CharT, "{} is not a valid weekday"),
static_cast<unsigned>(__wd.c_encoding())));
}
} // namespace chrono
#endif //if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_FORMAT)
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___CHRONO_OSTREAM_H
|
