gcc/testsuite/gfortran.dg/module_read_1.f90

   1 ! { dg-do run }
   2 ! { dg-options "-Wreturn-type" }
   3 ! PR fortran/33941
   4 ! The problem was that the intrinsic operators
   5 ! were written to the module file as '/=' etc.
   6 ! but this format was not understood on reading.
   7 !
   8 ! Test case by Toby White, stripped down by
   9 ! Dominique d'Humieres and Francois-Xavier Coudert
  10
  11 module foo
  12 contains
  13   function pop(n) result(item)          ! { dg-warning "not set" }
  14     integer :: n
  15     character(len=merge(1, 0, n > 0)) :: item
  16   end function pop
  17   function push(n) result(item)         ! { dg-warning "not set" }
  18     integer :: n
  19     character(len=merge(1, 0, n /= 0)) :: item
  20   end function push
  21 end module foo
  22
  23 program test
  24   use foo
  25   if(len(pop(0)) /= 0) STOP 1
  26   if(len(pop(1)) /= 1) STOP 2
  27   if(len(push(0)) /= 0) STOP 3
  28   if(len(push(1)) /= 1) STOP 4
  29 end program