gcc/testsuite/gfortran.fortran-torture/execute/intrinsic_product.f90

   1 ! Program to test the PRODUCT intrinsic
   2 program testproduct
   3    implicit none
   4    integer, dimension (3, 3) :: a
   5    integer, dimension (3) :: b
   6    logical, dimension (3, 3) :: m, tr
   7    character(len=12) line
   8
   9    a = reshape ((/1, 2, 3, 4, 5, 6, 7, 8, 9/), (/3, 3/));
  10
  11    b = product (a, 1)
  12
  13    tr = .true.
  14
  15    if (any(b .ne. (/6, 120, 504/))) call abort
  16
  17    write (line, 9000) product(a,1)
  18    if (line .ne. '   6 120 504') call abort
  19
  20    if (product (a) .ne. 362880) call abort
  21
  22    write (line, 9010) product(a)
  23    if (line .ne. '362880') call abort
  24
  25    m = .true.
  26    m(1, 1) = .false.
  27    m(2, 1) = .false.
  28
  29    b = product (a, 2, m)
  30    if (any(b .ne. (/28, 40, 162/))) call abort
  31
  32    b = product (a, 2, m .and. tr)
  33    if (any(b .ne. (/28, 40, 162/))) call abort
  34
  35    write (line, 9000) product(a, 2, m)
  36    if (line .ne. '  28  40 162') call abort
  37
  38    if (product (a, mask=m) .ne. 181440) call abort
  39
  40    if (product (a, mask=m .and. tr) .ne. 181440) call abort
  41
  42    write (line, 9010) product(a, mask=m)
  43    if (line .ne. '181440') call abort
  44
  45 9000 format (3I4)
  46 9010 format (I6)
  47 end program