std::chrono::month_day_last::ok

constexpr bool ok() const noexcept;

(since C++20)

Checks if the month object stored in *this is valid.

Return value

month().ok()

Example

#include <cassert>
#include <chrono>
 
int main()
{
    auto mdl{std::chrono::February/std::chrono::last};
    assert(mdl.ok());
    mdl = {std::chrono::month(42)/std::chrono::last};
    assert(!mdl.ok());
}

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