cppdraft_translate/cppdraft/time/duration/comparisons.md

[time.duration.comparisons]

30 Time library [time]

30.5 Class template duration [time.duration]

30.5.7 Comparisons [time.duration.comparisons]

1

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In the function descriptions that follow, CT representscommon_type_t<A, B>, where A and B are the types of the two arguments to the function.

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template<class Rep1, class Period1, class Rep2, class Period2> constexpr bool operator==(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);

2

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Returns: CT(lhs).count() == CT(rhs).count().

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template<class Rep1, class Period1, class Rep2, class Period2> constexpr bool operator<(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);

3

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Returns: CT(lhs).count() < CT(rhs).count().

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template<class Rep1, class Period1, class Rep2, class Period2> constexpr bool operator>(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);

4

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Returns: rhs < lhs.

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template<class Rep1, class Period1, class Rep2, class Period2> constexpr bool operator<=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);

5

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Returns: !(rhs < lhs).

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template<class Rep1, class Period1, class Rep2, class Period2> constexpr bool operator>=(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);

6

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Returns: !(lhs < rhs).

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template<class Rep1, class Period1, class Rep2, class Period2> requires [three_way_comparable](cmp.concept#concept:three_way_comparable "17.12.4 Concept three_­way_­comparable [cmp.concept]")<typename CT::rep> constexpr auto operator<=>(const duration<Rep1, Period1>& lhs, const duration<Rep2, Period2>& rhs);

7

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Returns: CT(lhs).count() <=> CT(rhs).count().