1! Program to test AINT and ANINT intrinsics
2
3subroutine real4test (op, res1, res2)
4   implicit none
5   real(kind=4) :: op
6   real(kind=4) :: res1, res2
7
8   if (diff(aint(op), res1) .or. &
9       diff(anint(op), res2)) STOP 1
10contains
11function diff(a, b)
12  real(kind=4) :: a, b
13  logical diff
14
15  diff = (abs (a - b) .gt. abs(a * 1e-6))
16end function
17end subroutine
18
19subroutine real8test (op, res1, res2)
20   implicit none
21   real(kind=8) :: op
22   real(kind=8) :: res1, res2
23
24   if (diff(aint(op), res1) .or. &
25       diff(anint(op), res2)) STOP 2
26contains
27function diff(a, b)
28  real(kind=8) :: a, b
29  logical diff
30
31  diff = (abs(a - b) .gt. abs(a * 1e-6))
32end function
33end subroutine
34
35program aint_aninttest
36   implicit none
37
38   call real4test (3.456, 3.0, 3.0)
39   call real4test (-2.798, -2.0, -3.0)
40   call real4test (3.678, 3.0, 4.0)
41   call real4test (-1.375, -1.0, -1.0)
42   call real4test (-0.5, 0.0,-1.0)
43   call real4test (0.4, 0.0,0.0)
44
45   call real8test (3.456_8, 3.0_8, 3.0_8)
46   call real8test (-2.798_8, -2.0_8, -3.0_8)
47   call real8test (3.678_8, 3.0_8, 4.0_8)
48   call real8test (-1.375_8, -1.0_8, -1.0_8)
49   call real8test (-0.5_8, 0.0_8,-1.0_8)
50   call real8test (0.4_8, 0.0_8,0.0_8)
51
52   ! Check large numbers
53   call real4test (2e34, 2e34, 2e34)
54   call real4test (-2e34, -2e34, -2e34)
55end program
56