mirror of https://github.com/ecmwf/eccodes.git
54 lines
1.7 KiB
Fortran
54 lines
1.7 KiB
Fortran
! (C) Copyright 2005- ECMWF.
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!
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! This software is licensed under the terms of the Apache Licence Version 2.0
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! which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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!
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! In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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! virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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!
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!
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! Description: How to copy a GRIB message in memory
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!
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!
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program copy
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use eccodes
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implicit none
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integer :: err, centre
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integer(kind=kindOfSize) :: byte_size
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integer :: infile, outfile
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integer :: igrib_in
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integer :: igrib_out
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character(len=1), dimension(:), allocatable :: message
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character(len=32) :: product_kind
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call codes_open_file(infile, '../../data/constant_field.grib1', 'r')
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call codes_open_file(outfile, 'out.copy.grib1', 'W')
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! A new GRIB message is loaded from file
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! igrib_in is the GRIB id to be used in subsequent calls
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call codes_grib_new_from_file(infile, igrib_in)
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call codes_get_message_size(igrib_in, byte_size)
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allocate (message(byte_size), stat=err)
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call codes_copy_message(igrib_in, message)
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call codes_new_from_message(igrib_out, message)
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call codes_get(igrib_out, 'kindOfProduct', product_kind)
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write (*, *) 'kindOfProduct=', product_kind
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centre = 80
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call codes_set(igrib_out, 'centre', centre)
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! Write message to a file
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call codes_write(igrib_out, outfile)
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call codes_release(igrib_out)
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call codes_release(igrib_in)
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call codes_close_file(infile)
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call codes_close_file(outfile)
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deallocate (message)
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end program copy
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