blob: 15086c20a132a5d4cf766cff8e7ee678c8e1f425 [file] [log] [blame]
! { dg-do run }
! { dg-options "-fcheck=do" }
! { dg-shouldfail "DO check" }
!
! PR fortran/34656
! Run-time check for modifing loop variables
!
program test
implicit none
real :: i, j, k
j = 10.0
k = 1.0
do i = 1.0, j, k ! { dg-warning "must be integer" }
call modLoopVar(i)
end do
contains
subroutine modLoopVar(x)
real :: x
x = x + 1
end subroutine modLoopVar
end program test
! { dg-output "Fortran runtime error: Loop variable has been modified" }