Method get_metadata_from_index

tiledb/sm/cpp_api/array.h:1168–1189

* It gets a metadata item from an open array using an index. * The array must be opened in READ mode, otherwise the function will * error out. * * @param index The index used to get the metadata. * @param key The metadata key. * @param value_type The datatype of the value. * @param value_num The value may consist of more than one items of the * same datatype. This argum

   * @param value The metadata value in binary form.
   */
  void get_metadata_from_index(
      uint64_t index,
      std::string* key,
      tiledb_datatype_t* value_type,
      uint32_t* value_num,
      const void** value) {
    const char* key_c;
    uint32_t key_len;
    auto& ctx = ctx_.get();
    tiledb_ctx_t* c_ctx = ctx.ptr().get();
    ctx.handle_error(tiledb_array_get_metadata_from_index(
        c_ctx,
        array_.get(),
        index,
        &key_c,
        &key_len,
        value_type,
        value_num,
        value));
    key->resize(key_len);
    std::memcpy((void*)key->data(), key_c, key_len);
  }

 private:
  /* ********************************* */