to_stream sets failbit if unable to format

*  If a formatting flag requests data that is not available in
   the Streamable object, or if the Streamable object answers !ok(),
   failbit is set.
This commit is contained in:
Howard Hinnant 2018-04-06 11:19:44 -04:00
parent 0125d330ab
commit 1d9e49ea21
2 changed files with 317 additions and 280 deletions

View File

@ -4316,28 +4316,33 @@ operator<<(std::basic_ostream<CharT, Traits>& os, const local_time<Duration>& ut
// to_stream
constexpr year nanyear{-32768};
template <class Duration>
struct fields
{
year_month_day ymd{year{0}/0/0};
year_month_day ymd{nanyear/0/0};
weekday wd{7u};
time_of_day<Duration> tod{};
bool has_tod = false;
fields() = default;
fields(year_month_day ymd_) : ymd(ymd_) {}
fields(weekday wd_) : wd(wd_) {}
fields(time_of_day<Duration> tod_) : tod(tod_) {}
fields(time_of_day<Duration> tod_) : tod(tod_), has_tod(true) {}
fields(year_month_day ymd_, weekday wd_) : ymd(ymd_), wd(wd_) {}
fields(year_month_day ymd_, time_of_day<Duration> tod_) : ymd(ymd_), tod(tod_) {}
fields(year_month_day ymd_, time_of_day<Duration> tod_) : ymd(ymd_), tod(tod_),
has_tod(true) {}
fields(weekday wd_, time_of_day<Duration> tod_) : wd(wd_), tod(tod_) {}
fields(weekday wd_, time_of_day<Duration> tod_) : wd(wd_), tod(tod_), has_tod(true) {}
fields(year_month_day ymd_, weekday wd_, time_of_day<Duration> tod_)
: ymd(ymd_)
, wd(wd_)
, tod(tod_)
, has_tod(true)
{}
};
@ -4654,7 +4659,12 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
os << CharT{'%'} << modified << *fmt;
else
{
if (!fds.ymd.ok())
os.setstate(std::ios::failbit);
if (*fmt == 'c' && !fds.has_tod)
os.setstate(std::ios::failbit);
#if !ONLY_C_LOCALE
if (*fmt == 'c')
tm = std::tm{};
auto const& ymd = fds.ymd;
auto ld = local_days(ymd);
@ -4713,39 +4723,40 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'C':
if (command)
{
auto y = static_cast<int>(fds.ymd.year());
#if !ONLY_C_LOCALE
if (modified == CharT{})
#else
if (modified != CharT{'O'})
#endif
{
save_stream<CharT, Traits> _(os);
os.fill('0');
os.flags(std::ios::dec | std::ios::right);
if (y >= 0)
{
os.width(2);
os << y/100;
}
else
{
os << CharT{'-'};
os.width(2);
os << -(y-99)/100;
}
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'E'})
{
tm.tm_year = y - 1900;
CharT f[3] = {'%', 'E', 'C'};
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
if (modified == CharT{'O'})
os << CharT{'%'} << modified << *fmt;
else
{
os << CharT{'%'} << modified << *fmt;
if (!fds.ymd.year().ok())
os.setstate(std::ios::failbit);
auto y = static_cast<int>(fds.ymd.year());
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
{
save_stream<CharT, Traits> _(os);
os.fill('0');
os.flags(std::ios::dec | std::ios::right);
if (y >= 0)
{
os.width(2);
os << y/100;
}
else
{
os << CharT{'-'};
os.width(2);
os << -(y-99)/100;
}
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'E'})
{
tm.tm_year = y - 1900;
CharT f[3] = {'%', 'E', 'C'};
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
}
command = nullptr;
modified = CharT{};
@ -4757,33 +4768,34 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'e':
if (command)
{
auto d = static_cast<int>(static_cast<unsigned>(fds.ymd.day()));
#if !ONLY_C_LOCALE
if (modified == CharT{})
#else
if (modified != CharT{'E'})
#endif
{
save_stream<CharT, Traits> _(os);
if (*fmt == CharT{'d'})
os.fill('0');
else
os.fill(' ');
os.flags(std::ios::dec | std::ios::right);
os.width(2);
os << d;
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
tm.tm_mday = d;
CharT f[3] = {'%', 'O', *fmt};
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
if (modified == CharT{'E'})
os << CharT{'%'} << modified << *fmt;
else
{
os << CharT{'%'} << modified << *fmt;
if (!fds.ymd.day().ok())
os.setstate(std::ios::failbit);
auto d = static_cast<int>(static_cast<unsigned>(fds.ymd.day()));
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
{
save_stream<CharT, Traits> _(os);
if (*fmt == CharT{'d'})
os.fill('0');
else
os.fill(' ');
os.flags(std::ios::dec | std::ios::right);
os.width(2);
os << d;
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
tm.tm_mday = d;
CharT f[3] = {'%', 'O', *fmt};
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
}
command = nullptr;
modified = CharT{};
@ -4796,6 +4808,8 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
{
if (modified == CharT{})
{
if (!fds.ymd.ok())
os.setstate(std::ios::failbit);
auto const& ymd = fds.ymd;
save_stream<CharT, Traits> _(os);
os.fill('0');
@ -4822,6 +4836,8 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
{
if (modified == CharT{})
{
if (!fds.ymd.ok())
os.setstate(std::ios::failbit);
auto const& ymd = fds.ymd;
save_stream<CharT, Traits> _(os);
os.fill('0');
@ -4849,6 +4865,8 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
{
if (modified == CharT{})
{
if (!fds.ymd.ok())
os.setstate(std::ios::failbit);
auto ld = local_days(fds.ymd);
auto y = year_month_day{ld + days{3}}.year();
auto start = local_days((y - years{1})/date::dec/thu[last]) + (mon-thu);
@ -4879,30 +4897,31 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'I':
if (command)
{
auto hms = fds.tod;
#if !ONLY_C_LOCALE
if (modified == CharT{})
#else
if (modified != CharT{'E'})
#endif
{
if (*fmt == CharT{'I'})
hms.make12();
if (hms.hours() < hours{10})
os << CharT{'0'};
os << hms.hours().count();
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_hour = static_cast<int>(hms.hours().count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
if (modified == CharT{'E'})
os << CharT{'%'} << modified << *fmt;
else
{
os << CharT{'%'} << modified << *fmt;
if (!fds.has_tod)
os.setstate(std::ios::failbit);
auto hms = fds.tod;
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
{
if (*fmt == CharT{'I'})
hms.make12();
if (hms.hours() < hours{10})
os << CharT{'0'};
os << hms.hours().count();
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_hour = static_cast<int>(hms.hours().count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
}
modified = CharT{};
command = nullptr;
@ -4915,6 +4934,8 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
{
if (modified == CharT{})
{
if (!fds.ymd.ok())
os.setstate(std::ios::failbit);
auto ld = local_days(fds.ymd);
auto y = fds.ymd.year();
auto doy = ld - local_days(y/jan/1) + days{1};
@ -4937,28 +4958,29 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'm':
if (command)
{
auto m = static_cast<unsigned>(fds.ymd.month());
#if !ONLY_C_LOCALE
if (modified == CharT{})
#else
if (modified != CharT{'E'})
#endif
{
if (m < 10)
os << CharT{'0'};
os << m;
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_mon = static_cast<int>(m-1);
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
if (modified == CharT{'E'})
os << CharT{'%'} << modified << *fmt;
else
{
os << CharT{'%'} << modified << *fmt;
if (!fds.ymd.month().ok())
os.setstate(std::ios::failbit);
auto m = static_cast<unsigned>(fds.ymd.month());
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
{
if (m < 10)
os << CharT{'0'};
os << m;
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_mon = static_cast<int>(m-1);
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
}
modified = CharT{};
command = nullptr;
@ -4969,27 +4991,28 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'M':
if (command)
{
#if !ONLY_C_LOCALE
if (modified == CharT{})
#else
if (modified != CharT{'E'})
#endif
{
if (fds.tod.minutes() < minutes{10})
os << CharT{'0'};
os << fds.tod.minutes().count();
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_min = static_cast<int>(fds.tod.minutes().count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
if (modified == CharT{'E'})
os << CharT{'%'} << modified << *fmt;
else
{
os << CharT{'%'} << modified << *fmt;
if (!fds.has_tod)
os.setstate(std::ios::failbit);
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
{
if (fds.tod.minutes() < minutes{10})
os << CharT{'0'};
os << fds.tod.minutes().count();
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_min = static_cast<int>(fds.tod.minutes().count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
}
modified = CharT{};
command = nullptr;
@ -5017,6 +5040,8 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
{
if (modified == CharT{})
{
if (!fds.has_tod)
os.setstate(std::ios::failbit);
#if !ONLY_C_LOCALE
const CharT f[] = {'%', *fmt};
tm.tm_hour = static_cast<int>(fds.tod.hours().count());
@ -5043,6 +5068,8 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
{
if (modified == CharT{})
{
if (!fds.has_tod)
os.setstate(std::ios::failbit);
#if !ONLY_C_LOCALE
const CharT f[] = {'%', *fmt};
tm.tm_hour = static_cast<int>(fds.tod.hours().count());
@ -5082,6 +5109,8 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
{
if (modified == CharT{})
{
if (!fds.has_tod)
os.setstate(std::ios::failbit);
if (fds.tod.hours() < hours{10})
os << CharT{'0'};
os << fds.tod.hours().count() << CharT{':'};
@ -5102,25 +5131,26 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'S':
if (command)
{
#if !ONLY_C_LOCALE
if (modified == CharT{})
#else
if (modified != CharT{'E'})
#endif
{
os << fds.tod.s_;
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_sec = static_cast<int>(fds.tod.s_.seconds().count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
if (modified == CharT{'E'})
os << CharT{'%'} << modified << *fmt;
else
{
os << CharT{'%'} << modified << *fmt;
if (!fds.has_tod)
os.setstate(std::ios::failbit);
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
{
os << fds.tod.s_;
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_sec = static_cast<int>(fds.tod.s_.seconds().count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
}
modified = CharT{};
command = nullptr;
@ -5148,6 +5178,8 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
{
if (modified == CharT{})
{
if (!fds.has_tod)
os.setstate(std::ios::failbit);
os << fds.tod;
}
else
@ -5163,28 +5195,25 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'u':
if (command)
{
auto wd = extract_weekday(os, fds);
if (os.fail())
return os;
#if !ONLY_C_LOCALE
if (modified == CharT{})
#else
if (modified != CharT{'E'})
#endif
{
os << (wd != 0 ? wd : 7u);
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_wday = static_cast<int>(wd);
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
if (modified == CharT{'E'})
os << CharT{'%'} << modified << *fmt;
else
{
os << CharT{'%'} << modified << *fmt;
auto wd = extract_weekday(os, fds);
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
{
os << (wd != 0 ? wd : 7u);
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_wday = static_cast<int>(wd);
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
}
modified = CharT{};
command = nullptr;
@ -5195,40 +5224,41 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'U':
if (command)
{
auto const& ymd = fds.ymd;
auto ld = local_days(ymd);
#if !ONLY_C_LOCALE
if (modified == CharT{})
#else
if (modified != CharT{'E'})
#endif
{
auto st = local_days(sun[1]/jan/ymd.year());
if (ld < st)
os << CharT{'0'} << CharT{'0'};
else
{
auto wn = duration_cast<weeks>(ld - st).count() + 1;
if (wn < 10)
os << CharT{'0'};
os << wn;
}
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_year = static_cast<int>(ymd.year()) - 1900;
tm.tm_wday = static_cast<int>(extract_weekday(os, fds));
if (os.fail())
return os;
tm.tm_yday = static_cast<int>((ld - local_days(ymd.year()/1/1)).count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
if (modified == CharT{'E'})
os << CharT{'%'} << modified << *fmt;
else
{
os << CharT{'%'} << modified << *fmt;
auto const& ymd = fds.ymd;
if (!ymd.ok())
os.setstate(std::ios::failbit);
auto ld = local_days(ymd);
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
{
auto st = local_days(sun[1]/jan/ymd.year());
if (ld < st)
os << CharT{'0'} << CharT{'0'};
else
{
auto wn = duration_cast<weeks>(ld - st).count() + 1;
if (wn < 10)
os << CharT{'0'};
os << wn;
}
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_year = static_cast<int>(ymd.year()) - 1900;
tm.tm_wday = static_cast<int>(extract_weekday(os, fds));
if (os.fail())
return os;
tm.tm_yday = static_cast<int>((ld - local_days(ymd.year()/1/1)).count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
}
modified = CharT{};
command = nullptr;
@ -5239,41 +5269,42 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'V':
if (command)
{
auto ld = local_days(fds.ymd);
#if !ONLY_C_LOCALE
if (modified == CharT{})
#else
if (modified != CharT{'E'})
#endif
{
auto y = year_month_day{ld + days{3}}.year();
auto st = local_days((y - years{1})/12/thu[last]) + (mon-thu);
if (ld < st)
{
--y;
st = local_days((y - years{1})/12/thu[last]) + (mon-thu);
}
auto wn = duration_cast<weeks>(ld - st).count() + 1;
if (wn < 10)
os << CharT{'0'};
os << wn;
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
auto const& ymd = fds.ymd;
tm.tm_year = static_cast<int>(ymd.year()) - 1900;
tm.tm_wday = static_cast<int>(extract_weekday(os, fds));
if (os.fail())
return os;
tm.tm_yday = static_cast<int>((ld - local_days(ymd.year()/1/1)).count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
if (modified == CharT{'E'})
os << CharT{'%'} << modified << *fmt;
else
{
os << CharT{'%'} << modified << *fmt;
if (!fds.ymd.ok())
os.setstate(std::ios::failbit);
auto ld = local_days(fds.ymd);
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
{
auto y = year_month_day{ld + days{3}}.year();
auto st = local_days((y - years{1})/12/thu[last]) + (mon-thu);
if (ld < st)
{
--y;
st = local_days((y - years{1})/12/thu[last]) + (mon-thu);
}
auto wn = duration_cast<weeks>(ld - st).count() + 1;
if (wn < 10)
os << CharT{'0'};
os << wn;
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
auto const& ymd = fds.ymd;
tm.tm_year = static_cast<int>(ymd.year()) - 1900;
tm.tm_wday = static_cast<int>(extract_weekday(os, fds));
if (os.fail())
return os;
tm.tm_yday = static_cast<int>((ld - local_days(ymd.year()/1/1)).count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
}
modified = CharT{};
command = nullptr;
@ -5316,40 +5347,41 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'W':
if (command)
{
auto const& ymd = fds.ymd;
auto ld = local_days(ymd);
#if !ONLY_C_LOCALE
if (modified == CharT{})
#else
if (modified != CharT{'E'})
#endif
{
auto st = local_days(mon[1]/jan/ymd.year());
if (ld < st)
os << CharT{'0'} << CharT{'0'};
else
{
auto wn = duration_cast<weeks>(ld - st).count() + 1;
if (wn < 10)
os << CharT{'0'};
os << wn;
}
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_year = static_cast<int>(ymd.year()) - 1900;
tm.tm_wday = static_cast<int>(extract_weekday(os, fds));
if (os.fail())
return os;
tm.tm_yday = static_cast<int>((ld - local_days(ymd.year()/1/1)).count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
if (modified == CharT{'E'})
os << CharT{'%'} << modified << *fmt;
else
{
os << CharT{'%'} << modified << *fmt;
auto const& ymd = fds.ymd;
if (!ymd.ok())
os.setstate(std::ios::failbit);
auto ld = local_days(ymd);
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
{
auto st = local_days(mon[1]/jan/ymd.year());
if (ld < st)
os << CharT{'0'} << CharT{'0'};
else
{
auto wn = duration_cast<weeks>(ld - st).count() + 1;
if (wn < 10)
os << CharT{'0'};
os << wn;
}
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'O'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_year = static_cast<int>(ymd.year()) - 1900;
tm.tm_wday = static_cast<int>(extract_weekday(os, fds));
if (os.fail())
return os;
tm.tm_yday = static_cast<int>((ld - local_days(ymd.year()/1/1)).count());
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
}
modified = CharT{};
command = nullptr;
@ -5364,6 +5396,8 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
os << CharT{'%'} << modified << *fmt;
else
{
if (!fds.has_tod)
os.setstate(std::ios::failbit);
#if !ONLY_C_LOCALE
tm = std::tm{};
tm.tm_sec = static_cast<int>(fds.tod.seconds().count());
@ -5388,6 +5422,8 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'y':
if (command)
{
if (!fds.ymd.year().ok())
os.setstate(std::ios::failbit);
auto y = static_cast<int>(fds.ymd.year());
#if !ONLY_C_LOCALE
if (modified == CharT{})
@ -5415,26 +5451,27 @@ to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
case 'Y':
if (command)
{
auto y = fds.ymd.year();
#if !ONLY_C_LOCALE
if (modified == CharT{})
#else
if (modified != CharT{'O'})
#endif
{
os << y;
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'E'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_year = static_cast<int>(y) - 1900;
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
if (modified == CharT{'O'})
os << CharT{'%'} << modified << *fmt;
else
{
os << CharT{'%'} << modified << *fmt;
if (!fds.ymd.year().ok())
os.setstate(std::ios::failbit);
auto y = fds.ymd.year();
#if !ONLY_C_LOCALE
if (modified == CharT{})
#endif
{
os << y;
}
#if !ONLY_C_LOCALE
else if (modified == CharT{'E'})
{
const CharT f[] = {'%', modified, *fmt};
tm.tm_year = static_cast<int>(y) - 1900;
facet.put(os, os, os.fill(), &tm, begin(f), end(f));
}
#endif
}
modified = CharT{};
command = nullptr;
@ -5572,7 +5609,7 @@ std::basic_ostream<CharT, Traits>&
to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt, const month& m)
{
using CT = std::chrono::seconds;
fields<CT> fds{m/0/0};
fields<CT> fds{m/0/nanyear};
return to_stream(os, fmt, fds);
}
@ -5582,7 +5619,7 @@ std::basic_ostream<CharT, Traits>&
to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt, const day& d)
{
using CT = std::chrono::seconds;
fields<CT> fds{d/0/0};
fields<CT> fds{d/0/nanyear};
return to_stream(os, fmt, fds);
}
@ -5612,7 +5649,7 @@ std::basic_ostream<CharT, Traits>&
to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt, const month_day& md)
{
using CT = std::chrono::seconds;
fields<CT> fds{md/0};
fields<CT> fds{md/nanyear};
return to_stream(os, fmt, fds);
}

View File

@ -69,10 +69,10 @@ main()
assert(os.str() == "32767-12-31 00:00:01.2096");
os.str("");
os << format("%F %T", jan/1/year::min());
assert(os.str() == "-32767-01-01 00:00:00");
os << format("%F", jan/1/year::min());
assert(os.str() == "-32767-01-01");
os.str("");
os << format("%F %T", dec/last/year::max());
assert(os.str() == "32767-12-31 00:00:00");
os << format("%F", dec/last/year::max());
assert(os.str() == "32767-12-31");
os.str("");
}