File: empty-string.f90

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! Copyright 2022-2024 Free Software Foundation, Inc.
!
! This program is free software; you can redistribute it and/or modify
! it under the terms of the GNU General Public License as published by
! the Free Software Foundation; either version 3 of the License, or
! (at your option) any later version.
!
! This program 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 General Public License
! along with this program.  If not, see <http://www.gnu.org/licenses/>.

program empty_string
  implicit none

  integer :: ret

  ret = string_length('')

contains

  integer(kind=4) function string_length(string)
    character*(*) :: string
    string_length = len(string)		! Break here.
  end function string_length

end program empty_string