| ! Check that the real(4) and real(8) random number generators return the same |
| ! sequence of values. |
| program random_4 |
| integer, dimension(:), allocatable :: seed |
| real(kind=4), dimension(10) :: r4 |
| real(kind=8), dimension(10) :: r8 |
| real, parameter :: delta = 0.0001 |
| integer n |
| |
| call random_seed (size=n) |
| allocate (seed(n)) |
| call random_seed (get=seed) |
| ! Test both array valued and scalar routines. |
| call random_number(r4) |
| call random_number (r4(10)) |
| |
| ! Reset the seed and get the real(8) values. |
| call random_seed (put=seed) |
| call random_number(r8) |
| call random_number (r8(10)) |
| |
| if (any ((r4 - r8) .gt. delta)) STOP 1 |
| end program |
| |
