gcc/testsuite/gfortran.dg/internal_readwrite_1.f90

   1 ! { dg-do run }
   2 ! PR 34565 - internal writes with negative strides
   3 ! didn't work.
   4 program main
   5   implicit none
   6   integer :: i
   7   integer :: lo, up, st
   8   character(len=2) :: c (5)
   9   integer, dimension(5) :: n
  10   c = (/ 'a', 'b', 'c', 'd', 'e' /)
  11   write (unit=c(5:1:-2),fmt="(A)") '5','3', '1'
  12   write (unit=c(2:4:2),fmt="(A)") '2', '4'
  13   read  (c(5:1:-1),fmt="(I2)") (n(i), i=5,1,-1)
  14   if (any(n /= (/ (i,i=1,5) /))) call abort
  15 end program main