Пример #1
0
Indexes Project::indexes()
	{
	Indexes idxs;
	for (Indexes src = source->indexes(); ! nil(src); ++src)
		if (subset(flds, *src))
			idxs.push(*src);
	return idxs;
	}
Пример #2
0
Indexes Project::keys()
	{
	Indexes keys;
	for (Indexes k = source->keys(); ! nil(k); ++k)
		if (subset(flds, *k))
			keys.push(*k);
	return nil(keys) ? Indexes(flds) : keys;
	}