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

   1 ! Program to test the PACK intrinsic
   2 program intrinsic_pack
   3    integer, parameter :: val(9) = (/0,0,0,0,9,0,0,0,7/)
   4    integer, dimension(3, 3) :: a
   5    integer, dimension(6) :: b
   6
   7    a = reshape (val, (/3, 3/))
   8    b = 0
   9    b(1:6:3) = pack (a, a .ne. 0);
  10    if (any (b(1:6:3) .ne. (/9, 7/))) STOP 1
  11    b = pack (a(2:3, 2:3), a(2:3, 2:3) .ne. 0, (/1, 2, 3, 4, 5, 6/));
  12    if (any (b .ne. (/9, 7, 3, 4, 5, 6/))) STOP 2
  13
  14    call tests_with_temp()
  15 contains
  16   subroutine tests_with_temp
  17     ! A few tests which involve a temporary
  18     if (any (pack(a, a.ne.0) .ne. (/9, 7/))) STOP 3
  19     if (any (pack(a, .true.) .ne. val)) STOP 4
  20     if (size(pack (a, .false.)) .ne. 0) STOP 5
  21     if (any (pack(a, .false., (/1,2,3/)).ne. (/1,2,3/))) STOP 6
  22
  23   end subroutine tests_with_temp
  24 end program