Function MakeIndicesVector

catboost/libs/model/model.cpp:1345–1352

template <typename T>
TVector<size_t> MakeIndicesVector(const TConstArrayRef<T>& features) {
    TVector<size_t> indices;
    indices.reserve(features.size());
    for (const auto& feature : features) {
        indices.push_back(SafeIntegerCast<size_t>(feature.Position.FlatIndex));
    }
    return indices;
}

TVector<size_t> GetModelCatFeaturesIndices(const TFullModel& model) {
    return MakeIndicesVector(model.ModelTrees->GetCatFeatures());