H5Miterate

herr_t H5Miterate(
       hid_t map_id,
       hsize_t *  idx,
       hid_t key_mem_type_id,
       H5M_iterate_t op,
       void *  op_data,
       hid_t mapl_id
   )

Iterates over all key-value pairs in a map.

Parameters

`map_id`	Map identifier
`idx`	Pointer to iteration index (in/out)
`key_mem_type_id`	Memory datatype of the key
`op`	Callback function to process each key-value pair
`op_data`	User-defined data to pass to the callback
`mapl_id`	Map access property list identifier, or H5P_DEFAULT

Returns

The return value of the last callback on success,

or negative on failure.