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Optimize zoned_time streaming operator

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Howard Hinnant 2016-05-06 22:48:36 -04:00
parent 4e2a7ac05b
commit b1d507df79
1 changed files with 3 additions and 4 deletions
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7
tz.h
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@ -984,15 +984,14 @@ make_zoned(const std::string& name, const sys_time<Duration>& st)
return {name, st};
}
template <class Duration>
inline
std::ostream&
operator<<(std::ostream& os, const zoned_time<Duration>& t)
{
// this should not use two lookups!
return os << floor<Duration>(t.zone_->to_local(t.tp_)) << ' '
<< t.zone_->get_info(t.tp_).abbrev;
auto i = t.zone_->get_info(t.tp_);
auto lt = t.tp_ + i.offset;
return os << lt << ' ' << i.abbrev;
}
class utc_clock