!>
!> @file ex7.f90
!>
!> @brief Write "doubles" and read into "simple precision" arrays
!>
!> @copyright
!> Copyright (©) 2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
!> SPC (Swiss Plasma Center)
!>
!> futils is free software: you can redistribute it and/or modify it under
!> the terms of the GNU Lesser General Public License as published by the Free
!> Software Foundation, either version 3 of the License, or (at your option)
!> any later version.
!>
!> futils is distributed in the hope that it will be useful, but WITHOUT ANY
!> WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
!> FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
!>
!> You should have received a copy of the GNU Lesser General Public License
!> along with this program. If not, see <https://www.gnu.org/licenses/>.
!>
!> @authors
!> (in alphabetical order)
!> @author Trach-Minh Tran <trach-minh.tran@epfl.ch>
!>
PROGRAM main
!
!    Write "doubles" and read into "simple precision" arrays
!
  USE futils
  IMPLICIT NONE
  CHARACTER(len=32) :: file='file.h5'
  CHARACTER(len=256) :: str
  INTEGER :: fid, i, ierr
  INTEGER, PARAMETER :: n=20
  REAL*8 :: darr(n)
  REAL*8 :: sarr(n)
!
  CALL creatf(file, fid, real_prec='d')
  CALL RANDOM_NUMBER(darr)
  WRITE(*,'(a/(10(1pe12.3)))') 'DARR =', darr
  CALL putarr(fid, 'doubles', darr)
  CALL attach(fid, 'doubles', 'Comment', 'Written by ex7!')
!!$  CALL closef(fid)
  CALL closeall(ierr)
  PRINT*, 'closeall ierr :', ierr
!
!============
  CALL openf(file, fid)
  CALL getarr(fid, 'doubles', sarr)
  CALL getatt(fid, 'doubles', 'Comment', str)
  WRITE(*,'(a,a)') 'Comment = ', TRIM(str)
  WRITE(*,'(a/(10(1pe12.3)))') 'SARR =', sarr
  WRITE(*,'(a/(10(1pe12.3)))') 'DIFF =', darr-sarr
  CALL closef(fid)
  CALL closeall(ierr)
  PRINT*, 'closeall ierr :', ierr
END PROGRAM main