std::chrono::operator==,<=>(std::chrono::day)
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std::chrono::day
Member functions
Nonmember functions
operator==operator<=>
Helper classes
(C++26)
Defined in header
<chrono>
constexpr bool operator==( const std::chrono::day & x,
const std::chrono::day & y ) noexcept;
(1)
(since C++20)
const std::chrono::day & y ) noexcept;
constexpr std::strong_ordering operator<=>( const std::chrono::day & x,
const std::chrono::day & y ) noexcept;
(2)
(since C++20)
const std::chrono::day & y ) noexcept;
Compare the two std::chrono::day x and y.
The <, <=, >, >=, and != operators are synthesized from operator<=> and operator== respectively.
[edit] Return value
1) unsigned(x) == unsigned(y)
2) unsigned(x) <=> unsigned(y)
[edit] Example
Run this code
#include <chrono> #include <iostream> int main() { constexpr std::chrono::day x{13}, y{31}; static_assert(x != y); if constexpr (constexpr auto res = x <=> y; res < 0) std::cout << "x is less than y\n"; else if constexpr (res > 0) std::cout << "x is greater than y\n"; else std::cout << "x and y are equal\n"; using namespace std::literals::chrono_literals; static_assert ( (6d < 9d) && (6d == 6d) && (6d <= 9d) && (9d > 6d) && (9d != 6d) && (9d >= 6d) ); }
Output:
x is less than y