gcc/testsuite/gfortran.dg/string_null_compare_1.f

   1 ! { dg-do run }
   2 ! PR 27784 - Different strings should compare unequal even if they
   3 !            have CHAR(0) in them.
   4
   5       program main
   6       character*3 str1, str2
   7       call setval(str1, str2)
   8       if (str1 == str2) call abort
   9       end
  10
  11       subroutine setval(str1, str2)
  12       character*3 str1, str2
  13       str1 = 'a' // CHAR(0) // 'a'
  14       str2 = 'a' // CHAR(0) // 'c'
  15       end