std::chrono::operator==,<=>(std::chrono::day)
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constexpr bool operator==( const std::chrono::day& x,
const std::chrono::day& y ) noexcept; |
(1) | (C++20 起) |
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constexpr std::strong_ordering operator<=>( const std::chrono::day& x,
const std::chrono::day& y ) noexcept; |
(2) | (C++20 起) |
比较二个 std::chrono::day x 和 y 。
返回值
1) unsigned(x) == unsigned(y)
2) unsigned(x) <=> unsigned(y)