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Further consolidate time_of_day logic

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Adjust how it works for floating point durations.
This commit is contained in:
Howard Hinnant
2019-02-03 16:14:56 -05:00
parent 9cb0013aef
commit 09a19a09f4
1 changed files with 27 additions and 42 deletions
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69
include/date/date.h
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@@ -3732,7 +3732,8 @@ public:
CONSTCD11 explicit decimal_format_seconds(const Duration& d) NOEXCEPT
: s_(std::chrono::duration_cast<std::chrono::seconds>(d))
, sub_s_(std::chrono::duration_cast<precision>(d - s_))
, sub_s_(std::chrono::treat_as_floating_point<rep>::value ? d - s_ :
std::chrono::duration_cast<precision>(d - s_))
{}
CONSTCD14 std::chrono::seconds& seconds() NOEXCEPT {return s_;}
@@ -3754,61 +3755,45 @@ public:
friend
std::basic_ostream<CharT, Traits>&
operator<<(std::basic_ostream<CharT, Traits>& os, const decimal_format_seconds& x)
{
return x.print(os, std::chrono::treat_as_floating_point<rep>{});
}
template <class CharT, class Traits>
std::basic_ostream<CharT, Traits>&
print(std::basic_ostream<CharT, Traits>& os, std::true_type) const
{
date::detail::save_ostream<CharT, Traits> _(os);
std::chrono::duration<rep> d = s_ + sub_s_;
if (d < std::chrono::seconds{10})
os << '0';
os << std::fixed << d.count();
return os;
}
template <class CharT, class Traits>
std::basic_ostream<CharT, Traits>&
print(std::basic_ostream<CharT, Traits>& os, std::false_type) const
{
date::detail::save_ostream<CharT, Traits> _(os);
os.fill('0');
os.flags(std::ios::dec | std::ios::right);
os.width(2);
os << x.s_.count();
os << s_.count();
if (width > 0)
{
#if !ONLY_C_LOCALE
os << std::use_facet<std::numpunct<CharT>>(os.getloc()).decimal_point();
#else
os << '.';
#endif
os.width(width);
os << static_cast<std::int64_t>(x.sub_s_.count());
os << sub_s_.count();
}
return os;
}
};
template <class Rep>
class decimal_format_seconds<std::chrono::duration<Rep>>
{
public:
static unsigned constexpr width = 0u;
using precision = std::chrono::duration<Rep>;
private:
precision s_;
public:
CONSTCD11 decimal_format_seconds() : s_() {}
CONSTCD11 explicit decimal_format_seconds(const precision& s) NOEXCEPT
: s_(s)
{}
CONSTCD14 std::chrono::seconds& seconds() NOEXCEPT {return s_;}
CONSTCD11 std::chrono::seconds seconds() const NOEXCEPT {return s_;}
CONSTCD14 precision to_duration() const NOEXCEPT {return s_;}
CONSTCD11 bool in_conventional_range() const NOEXCEPT
{
using namespace std::chrono;
return s_ < minutes{1};
}
template <class CharT, class Traits>
friend
std::basic_ostream<CharT, Traits>&
operator<<(std::basic_ostream<CharT, Traits>& os, const decimal_format_seconds& x)
{
if (x.s_ < std::chrono::seconds{10})
os << '0';
os << x.s_.count();
return os;
}
};
template <class Rep, class Period>
inline
CONSTCD11