H5S_seloper_t

H5S_seloper_t is defined in H5Spublic.h as follows:

  typedef enum H5S_seloper_t {
    H5S_SELECT_NOOP      = -1,  /* error                                     */
    H5S_SELECT_SET       = 0,   /* Select "set" operation                    */
    H5S_SELECT_OR,              /* Binary "or" operation for hyperslabs
                                 * (add new selection to existing selection)
                                 * Original region:  AAAAAAAAAA
                                 * New region:             BBBBBBBBBB
                                 * A or B:           CCCCCCCCCCCCCCCC
                                */
    H5S_SELECT_AND,             /* Binary "and" operation for hyperslabs
                                 * (only leave overlapped regions in selection)
                                 * Original region:  AAAAAAAAAA
                                 * New region:             BBBBBBBBBB
                                 * A and B:                CCCC
                                 */
    H5S_SELECT_XOR,             /* Binary "xor" operation for hyperslabs
                                 * (only leave non-overlapped regions in selection)
                                 * Original region:  AAAAAAAAAA
                                 * New region:             BBBBBBBBBB
                                 * A xor B:          CCCCCC    CCCCCC
                                 */
    H5S_SELECT_NOTB,            /* Binary "not" operation for hyperslabs
                                 * (only leave non-overlapped regions in original selection)
                                 * Original region:  AAAAAAAAAA
                                 * New region:             BBBBBBBBBB
                                 * A not B:          CCCCCC
                                 */
    H5S_SELECT_NOTA,            /* Binary "not" operation for hyperslabs
                                 * (only leave non-overlapped regions in new selection)
                                 * Original region:  AAAAAAAAAA
                                 * New region:             BBBBBBBBBB
                                 * B not A:                    CCCCCC
                                 */
    H5S_SELECT_APPEND,          /* Append elements to end of point selection */
    H5S_SELECT_PREPEND,         /* Prepend elements to beginning of point selection */
    H5S_SELECT_INVALID          /* Invalid upper bound on selection operations */
} H5S_seloper_t;