38 static const std::chrono::seconds cutoff(11);
41 if (newer.source == older.source) {
46 if (newer.value.when > older.value.when + cutoff) {
51 if (!older.value.value.accuracy.horizontal)
53 if (!newer.value.value.accuracy.horizontal)
55 if (newer.value.value.accuracy.horizontal < older.value.value.accuracy.horizontal)