tmp/tmppmt5hcfj/{from.md → to.md}
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#### Overview <a id="time.cal.wdidx.overview">[[time.cal.wdidx.overview]]</a>
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``` cpp
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namespace std::chrono {
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class weekday_indexed {
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chrono::weekday wd_; // exposition only
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unsigned char index_; // exposition only
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public:
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weekday_indexed() = default;
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constexpr weekday_indexed(const chrono::weekday& wd, unsigned index) noexcept;
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constexpr chrono::weekday weekday() const noexcept;
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constexpr unsigned index() const noexcept;
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constexpr bool ok() const noexcept;
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};
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}
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```
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`weekday_indexed` represents a `weekday` and a small index in the range
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1 to 5. This class is used to represent the first, second, third,
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fourth, or fifth weekday of a month.
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[*Note 1*: A `weekday_indexed` object can be constructed by indexing a
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`weekday` with an `unsigned`. — *end note*]
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[*Example 1*:
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``` cpp
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constexpr auto wdi = Sunday[2]; // wdi is the second Sunday of an as yet unspecified month
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static_assert(wdi.weekday() == Sunday);
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static_assert(wdi.index() == 2);
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```
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— *end example*]
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`weekday_indexed` is a trivially copyable and standard-layout class
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type.
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