Am 02.01.2018 um 23:24 schrieb Giuseppe D'Angelo:
But this doesn't really require a "generic iterator class", does it?
The function looked for here is really some variation around this:
template <typename K, typename V>
auto mapKeysToVector(const QMap<K, V> &map)
{
QVector<K> result;
result.reserve(map.size());
std::copy(map.keyBegin(), map.keyEnd(), std::back_inserter(result));
return result;
}
The question is more broad and about how to avoid similar functions
popping up everywhere in Qt codebase. I don't have a good answer for
that except for "please start collecting them somewhere in the
QtPrivate namespace".
Correct - but I now added the four lines because I could not find a
second place during a short search so I had no reason to add a
function... but still thinking it would be a good idea to have such
helpers somewhere.
Christian
btw: still on interest, but now it's too late ;)
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