bool operator == (const Labels& left, const Labels& right)
{
// Order of labels is not important.
if (left.labels().size() != right.labels().size()) {
return false;
}
for (int i = 0; i < left.labels().size(); i++) {
bool found = false;
for (int j = 0; j < right.labels().size(); j++) {
if (left.labels().Get(i) == right.labels().Get(j)) {
found = true;
break;
}
}
if (!found) {
return false;
}
}
return true;
}
