Determines the number of elements in a dataspace selection
Procedure:
H5S_GET_SELECT_NPOINTS ( space_id )
Signature:
hssize_t H5Sget_select_npoints(
hid_t space_id
)
Fortran90 Interface: h5sget_select_npoints_f
SUBROUTINE h5sget_select_npoints_f(space_id, npoints, hdferr)
IMPLICIT NONE
INTEGER(HID_T), INTENT(IN) :: space_id ! Dataspace identifier
INTEGER(HSSIZE_T), INTENT(OUT) :: npoints ! Number of elements in the
! selection
INTEGER, INTENT(OUT) :: hdferr ! Error code
! 0 on success and -1 on failure
END SUBROUTINE h5sget_select_npoints_f
Parameters:
hid_t space_id IN: Dataspace identifier
Description:
H5S_GET_SELECT_NPOINTS determines the number of elements in the current selection of a dataspace. It works with any selection type, and is the correct way to retrieve the number of elements in a selection.
Returns:
Returns the number of elements in the selection if successful; otherwise returns a negative value.
Example:
* Allocate space for the read buffer. We will only allocate
* enough space for the selection, plus a null terminator. The
* read buffer will be 1-dimensional.
*/
npoints = H5Sget_select_npoints (space);
rdata2 = (char *) malloc (npoints + 1);
! Allocate space for the read buffer.
!
CALL H5Sget_select_npoints_f(space, npoints, hdferr)
History:
--- Last Modified: September 27, 2018 | 11:44 AM
