NAME¶

std::chrono::operator==,(std::chrono::day) - std::chrono::operator==,(std::chrono::day)

Synopsis¶

Defined in header <chrono>
constexpr bool operator==( const std::chrono::day& x, (1) (since C++20)
const std::chrono::day& y ) noexcept;
constexpr std::strong_ordering operator<=>( const
std::chrono::day& x, (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.

Return value¶

1) unsigned(x) == unsigned(y)
2) unsigned(x) <=> unsigned(y)

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