namespace std::chrono {
class nonexistent_local_time : public runtime_error {
public:
template<class Duration>
nonexistent_local_time(const local_time<Duration>& tp, const local_info& i);
};
}
nonexistent_local_time is thrown when
an attempt is made
to convert a non-existent
local_time to a
sys_time
without specifying
choose::earliest or
choose::latest. template<class Duration>
nonexistent_local_time(const local_time<Duration>& tp, const local_info& i);
Preconditions:
i.result == local_info::nonexistent is
true. Effects: Initializes the base class with a sequence of char
equivalent to that produced by os.str()
initialized as shown below:
ostringstream os;
os << tp << " is in a gap between\n"
<< local_seconds{i.first.end.time_since_epoch()} + i.first.offset << ' '
<< i.first.abbrev << " and\n"
<< local_seconds{i.second.begin.time_since_epoch()} + i.second.offset << ' '
<< i.second.abbrev
<< " which are both equivalent to\n"
<< i.first.end << " UTC";
[
Example 1:
#include <chrono>
#include <iostream>
int main() {
using namespace std::chrono;
try {
auto zt = zoned_time{"America/New_York",
local_days{Sunday[2]/March/2016} + 2h + 30min};
} catch (const nonexistent_local_time& e) {
std::cout << e.what() << '\n';
}
}
Produces the output:
2016-03-13 02:30:00 is in a gap between
2016-03-13 02:00:00 EST and
2016-03-13 03:00:00 EDT which are both equivalent to
2016-03-13 07:00:00 UTC
—
end example]