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std::chrono::operator==,(std::chrono::year_month)(3) | C++ Standard Libary | std::chrono::operator==,(std::chrono::year_month)(3) |
NAME¶
std::chrono::operator==,(std::chrono::year_month) - std::chrono::operator==,(std::chrono::year_month)
Synopsis¶
Defined in header <chrono>
constexpr bool operator==( const std::chrono::year_month& x, (1)
(since C++20)
const std::chrono::year_month& y ) noexcept;
constexpr std::strong_ordering operator<=>( const
std::chrono::year_month& x, (2) (since C++20)
const std::chrono::year_month& y ) noexcept;
Compares the two year_month values x and y.
The <, <=, >, >=, and != operators are synthesized from
operator<=> and operator==
respectively.
Return value¶
1) x.year() == y.year() && x.month() == y.month()
2) x.year() <=> y.year() != 0 ? x.year() <=> y.year() : x.month()
<=> y.month()
Example¶
// Run this code
#include <iostream>
#include <chrono>
int main()
{
using namespace std::chrono;
constexpr year_month ym1 {year(2021), month(7)};
constexpr year_month ym2 {year(2021)/7};
std::cout << std::boolalpha << (ym1 == ym2) << '\n';
static_assert(
(2020y/1 < 2020y/2) && (2020y/2 == 2020y/2) && (2020y/3
<= 2021y/3)
&& (2023y/1 > 2020y/2) && (3020y/2 != 2020y/2) &&
(2020y/3 >= 2020y/3)
);
}
Output:¶
true
2022.07.31 | http://cppreference.com |