Function LGBM_BoosterGetNumFeature

src/c_api.cpp:1272–1277

}

int LGBM_BoosterGetNumFeature(BoosterHandle handle, int* out_len) {
  API_BEGIN();
  Booster* ref_booster = reinterpret_cast<Booster*>(handle);
  *out_len = ref_booster->GetBoosting()->MaxFeatureIdx() + 1;
  API_END();
}

int LGBM_BoosterGetEval(BoosterHandle handle,
                        int data_idx,