Method has_metadata

tiledb/sm/cpp_api/array.h:1133–1140

* Checks if key exists in metadata from an open array. The array must * be opened in READ mode, otherwise the function will error out. * * @param key The key of the metadata item to be retrieved. UTF-8 encodings * are acceptable. * @param value_type The datatype of the value associated with the key (if * any). * @return true if the key exists, else false. * @note If the

   * @note If the key does not exist, then `value_type` will not be modified.
   */
  bool has_metadata(const std::string& key, tiledb_datatype_t* value_type) {
    auto& ctx = ctx_.get();
    tiledb_ctx_t* c_ctx = ctx.ptr().get();
    int32_t has_key;
    ctx.handle_error(tiledb_array_has_metadata_key(
        c_ctx, array_.get(), key.c_str(), value_type, &has_key));
    return has_key == 1;
  }

  /**
   * Returns then number of metadata items in an open array. The array must