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
   7
   8    a = reshape ((/1, 2, 3, 4, 5, 6, 7, 8, 9/), (/3, 3/));
   9
  10    b = product (a, 1)
  11
  12    if (any(b .ne. (/6, 120, 504/))) call abort
  13
  14    if (product (a) .ne. 362880) call abort
  15
  16    m = .true.
  17    m(1, 1) = .false.
  18    m(2, 1) = .false.
  19    b = product (a, 2, m)
  20
  21    if (any(b .ne. (/28, 40, 162/))) call abort
  22
  23    if (product (a, mask=m) .ne. 181440) call abort
  24
  25 end program