tmp/tmp6hdoxwjn/{from.md → to.md}
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| 1 |
+
#### Non-member functions <a id="time.cal.day.nonmembers">[[time.cal.day.nonmembers]]</a>
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``` cpp
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constexpr bool operator==(const day& x, const day& y) noexcept;
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```
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*Returns:* `unsigned{x} == unsigned{y}`.
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``` cpp
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constexpr strong_ordering operator<=>(const day& x, const day& y) noexcept;
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```
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*Returns:* `unsigned{x} <=> unsigned{y}`.
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``` cpp
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constexpr day operator+(const day& x, const days& y) noexcept;
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```
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*Returns:* `day(unsigned{x} + y.count())`.
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``` cpp
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constexpr day operator+(const days& x, const day& y) noexcept;
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```
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*Returns:* `y + x`.
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``` cpp
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constexpr day operator-(const day& x, const days& y) noexcept;
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```
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*Returns:* `x + -y`.
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``` cpp
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constexpr days operator-(const day& x, const day& y) noexcept;
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```
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*Returns:* `days{int(unsigned{x}) - int(unsigned{y})}`.
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``` cpp
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template<class charT, class traits>
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basic_ostream<charT, traits>&
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operator<<(basic_ostream<charT, traits>& os, const day& d);
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```
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*Effects:* Equivalent to:
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``` cpp
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return os << (d.ok() ?
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| 49 |
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format(STATICALLY-WIDEN<charT>("{:%d}"), d) :
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| 50 |
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format(STATICALLY-WIDEN<charT>("{:%d} is not a valid day"), d));
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```
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``` cpp
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template<class charT, class traits, class Alloc = allocator<charT>>
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basic_istream<charT, traits>&
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from_stream(basic_istream<charT, traits>& is, const charT* fmt,
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day& d, basic_string<charT, traits, Alloc>* abbrev = nullptr,
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| 58 |
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minutes* offset = nullptr);
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| 59 |
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```
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| 60 |
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*Effects:* Attempts to parse the input stream `is` into the `day` `d`
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using the format flags given in the NTCTS `fmt` as specified in
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| 63 |
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[[time.parse]]. If the parse fails to decode a valid day,
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`is.setstate(ios_base::failbit)` is called and `d` is not modified. If
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| 65 |
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`%Z` is used and successfully parsed, that value will be assigned to
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| 66 |
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`*abbrev` if `abbrev` is non-null. If `%z` (or a modified variant) is
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| 67 |
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used and successfully parsed, that value will be assigned to `*offset`
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| 68 |
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if `offset` is non-null.
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*Returns:* `is`.
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``` cpp
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constexpr chrono::day operator""d(unsigned long long d) noexcept;
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```
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*Returns:* `day{static_cast<unsigned>(d)}`.
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