1! Copyright 2022-2023 Free Software Foundation, Inc. 2! 3! This program is free software; you can redistribute it and/or modify 4! it under the terms of the GNU General Public License as published by 5! the Free Software Foundation; either version 3 of the License, or 6! (at your option) any later version. 7! 8! This program is distributed in the hope that it will be useful, 9! but WITHOUT ANY WARRANTY; without even the implied warranty of 10! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11! GNU General Public License for more details. 12! 13! You should have received a copy of the GNU General Public License 14! along with this program. If not, see <http://www.gnu.org/licenses/>. 15 16program empty_string 17 implicit none 18 19 integer :: ret 20 21 ret = string_length('') 22 23contains 24 25 integer(kind=4) function string_length(string) 26 character*(*) :: string 27 string_length = len(string) ! Break here. 28 end function string_length 29 30end program empty_string 31