eccodes/examples/F90/read_from_file.f90

53 lines
1.4 KiB
Fortran

! Copyright 2005-2012 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.
!
!
!
program read_from_file
use grib_api
implicit none
integer :: size,intsize
parameter (intsize=5000000,size=intsize*4)
integer :: ifile
integer :: iret
integer :: count1=0
character(len=256) :: filename
integer(kind=4),dimension(intsize) :: buffer
!character,dimension(size) :: buffer
integer(kind=kindOfSize_t) :: len1
! Message identifier.
integer :: igrib
ifile=5
call grib_open_file(ifile,'../../data/collection.grib1','r')
! Loop on all the messages in a file.
len1=size
call grib_read_from_file(ifile,buffer,len1,iret)
! call grib_new_from_file(ifile,igrib, iret)
do while (iret==GRIB_SUCCESS)
count1=count1+1
print *, '===== Message #',count1,' len=',len1
len1=size
call grib_read_from_file(ifile,buffer,len1,iret)
! call grib_new_from_file(ifile,igrib, iret)
end do
if (iret/=GRIB_END_OF_FILE) then
call grib_check(iret,'read_from_file','')
endif
call grib_close_file(ifile)
end program