! Copyright 2005-2017 ECMWF.
!
! This software is licensed under the terms of the Apache Licence Version 2.0
! which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
! 
! In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
! virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
!
!
!  Description: how to copy a namespace from a message to another.
!
!
program copy_namespace
  use grib_api
  implicit none
  integer  :: file1, file2, file3
  integer  :: igrib1,igrib2,igrib3

  call grib_open_file(file1,'../../data/reduced_latlon_surface.grib2','r')
  call grib_open_file(file2,'../../data/regular_latlon_surface.grib1','r')
  call grib_open_file(file3,'out.namespace.grib','w')

  call grib_new_from_file(file1,igrib1)
  call grib_new_from_file(file2,igrib2)

  call grib_clone(igrib2,igrib3)

  call grib_copy_namespace(igrib1,'geography',igrib3)

  call grib_write(igrib3,file3)

  call grib_close_file(file1)
  call grib_close_file(file2)
  call grib_close_file(file3)

end program copy_namespace
