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module test_default_format
interface test
module procedure test_rl
end interface test
integer, parameter :: kl = selected_real_kind (precision (0.0_8) + 1)
integer, parameter :: count = 200
contains
function test_rl (start, towards) result (res)
integer, parameter :: k = kl
integer, intent(in) :: towards
real(k), intent(in) :: start
integer :: res, i
real(k) :: x, y
character(len=100) :: s
res = 0
if (towards >= 0) then
x = start
do i = 0, count
write (s,*) x
read (s,*) y
if (y /= x) res = res + 1
x = nearest(x,huge(x))
end do
end if
if (towards <= 0) then
x = start
do i = 0, count
write (s,*) x
read (s,*) y
if (y /= x) res = res + 1
x = nearest(x,-huge(x))
end do
end if
end function test_rl
end module test_default_format
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