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! Program to test AINT and ANINT intrinsics

subroutine real4test (op, res1, res2)

   implicit none

   real(kind=4) :: op

   real(kind=4) :: res1, res2

   if (diff(aint(op), res1) .or. &

       diff(anint(op), res2)) call abort

contains

function diff(a, b)

  real(kind=4) :: a, b

  logical diff

  diff = (abs (a - b) .gt. abs(a * 1e-6))

end function

end subroutine

subroutine real8test (op, res1, res2)

   implicit none

   real(kind=8) :: op

   real(kind=8) :: res1, res2

   if (diff(aint(op), res1) .or. &

       diff(anint(op), res2)) call abort

contains

function diff(a, b)

  real(kind=8) :: a, b

  logical diff

  diff = (abs(a - b) .gt. abs(a * 1e-6))

end function

end subroutine

program aint_aninttest

   implicit none

   call real4test (3.456, 3.0, 3.0)

   call real4test (-2.798, -2.0, -3.0)

   call real4test (3.678, 3.0, 4.0)

   call real4test (-1.375, -1.0, -1.0)

   call real4test (-0.5, 0.0,-1.0)

   call real4test (0.4, 0.0,0.0)

   call real8test (3.456_8, 3.0_8, 3.0_8)

   call real8test (-2.798_8, -2.0_8, -3.0_8)

   call real8test (3.678_8, 3.0_8, 4.0_8)

   call real8test (-1.375_8, -1.0_8, -1.0_8)

   call real8test (-0.5_8, 0.0_8,-1.0_8)

   call real8test (0.4_8, 0.0_8,0.0_8)

   ! Check large numbers

   call real4test (2e34, 2e34, 2e34)

   call real4test (-2e34, -2e34, -2e34)

end program