| ! Program to test the PRODUCT intrinsic |
| program testproduct |
| implicit none |
| integer, dimension (3, 3) :: a |
| integer, dimension (3) :: b |
| logical, dimension (3, 3) :: m, tr |
| character(len=12) line |
| |
| a = reshape ((/1, 2, 3, 4, 5, 6, 7, 8, 9/), (/3, 3/)); |
| |
| b = product (a, 1) |
| |
| tr = .true. |
| |
| if (any(b .ne. (/6, 120, 504/))) STOP 1 |
| |
| write (line, 9000) product(a,1) |
| if (line .ne. ' 6 120 504') STOP 2 |
| |
| if (product (a) .ne. 362880) STOP 3 |
| |
| write (line, 9010) product(a) |
| if (line .ne. '362880') STOP 4 |
| |
| m = .true. |
| m(1, 1) = .false. |
| m(2, 1) = .false. |
| |
| b = product (a, 2, m) |
| if (any(b .ne. (/28, 40, 162/))) STOP 5 |
| |
| b = product (a, 2, m .and. tr) |
| if (any(b .ne. (/28, 40, 162/))) STOP 6 |
| |
| write (line, 9000) product(a, 2, m) |
| if (line .ne. ' 28 40 162') STOP 7 |
| |
| if (product (a, mask=m) .ne. 181440) STOP 8 |
| |
| if (product (a, mask=m .and. tr) .ne. 181440) STOP 9 |
| |
| write (line, 9010) product(a, mask=m) |
| if (line .ne. '181440') STOP 10 |
| |
| 9000 format (3I4) |
| 9010 format (I6) |
| end program |
