File: arrays_69.f90

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program arrays_69
    integer :: A(4) = [1,2,3,4]
    integer :: A1(3,3) = reshape([1,2,3,4,5,6,7,8,9], [3,3])
    integer :: A2(2,2,2) = reshape([1,2,3,4,5,6,7,8], [2,2,2])
    integer :: tmp(2,2) = reshape([5,5,5,5], [2,2])

    !!!! ArrayItem = ArrayItem
    A([1,2]) = A([2,1])
    if (A(1) /= 2 .or. A(2) /= 1) error stop

    A1([1,2],1) = A1([2,1],1)
    if (A1(1,1) /= 2 .or. A1(2,1) /= 1 .or. A1(3,1) /= 3 .or. &
         & A1(1,2) /= 4 .or. A1(2,2) /= 5 .or. A1(3,2) /= 6 .or. &
         & A1(1,3) /= 7 .or. A1(2,3) /= 8 .or. A1(3,3) /= 9) error stop

    A1([1,2],[2,3]) = A1([2,1],[2,3])
    if (A1(1,1) /= 2 .or. A1(2,1) /= 1 .or. A1(3,1) /= 3 .or. &
        & A1(1,2) /= 5 .or. A1(2,2) /= 4 .or. A1(3,2) /= 6 .or. &
        & A1(1,3) /= 8 .or. A1(2,3) /= 7 .or. A1(3,3) /= 9) error stop

    A1([1,2],1) = A1(1,[1,2])
    if (A1(1,1) /= 2 .or. A1(2,1) /= 5 .or. A1(3,1) /= 3 .or. &
        & A1(1,2) /= 5 .or. A1(2,2) /= 4 .or. A1(3,2) /= 6 .or. &
        & A1(1,3) /= 8 .or. A1(2,3) /= 7 .or. A1(3,3) /= 9) error stop

    A2(1,[1,2],[1,2]) = A2([1,2],[2,1],1)
    if (A2(1,1,1) /= 3 .or. A2(2,1,1) /= 2 .or. A2(1,2,1) /= 4 .or. A2(2,2,1) /= 4 .or. &
         & A2(1,1,2) /= 1 .or. A2(2,1,2) /= 6 .or. A2(1,2,2) /= 2 .or. A2(2,2,2) /= 8) error stop
    
    !!!! ArrayItem = ArrayConstant
    A([1,2]) = [5,5]
    if (A(1) /= 5 .or. A(2) /= 5) error stop

    A1([1,2],1) = [5,5]
    if (A1(1,1) /= 5 .or. A1(2,1) /= 5 .or. A1(3,1) /= 3 .or. &
        & A1(1,2) /= 5 .or. A1(2,2) /= 4 .or. A1(3,2) /= 6 .or. &
        & A1(1,3) /= 8 .or. A1(2,3) /= 7 .or. A1(3,3) /= 9) error stop

    A1([1,2],[1,2]) = tmp
    if (A1(1,1) /= 5 .or. A1(2,1) /= 5 .or. A1(3,1) /= 3 .or. &
        & A1(1,2) /= 5 .or. A1(2,2) /= 5 .or. A1(3,2) /= 6 .or. &
        & A1(1,3) /= 8 .or. A1(2,3) /= 7 .or. A1(3,3) /= 9) error stop

    A2([1,2],1,1) = [5,5]
    if (A2(1,1,1) /= 5 .or. A2(2,1,1) /= 5 .or. A2(1,2,1) /= 4 .or. A2(2,2,1) /= 4 .or. &
         & A2(1,1,2) /= 1 .or. A2(2,1,2) /= 6 .or. A2(1,2,2) /= 2 .or. A2(2,2,2) /= 8) error stop

    A2([1,2],1,[1,2]) = tmp
    if (A2(1,1,1) /= 5 .or. A2(2,1,1) /= 5 .or. A2(1,2,1) /= 4 .or. A2(2,2,1) /= 4 .or. &
         & A2(1,1,2) /= 5 .or. A2(2,1,2) /= 5 .or. A2(1,2,2) /= 2 .or. A2(2,2,2) /= 8) error stop

    !!! LHS and RHS contains common variable
    A = A([3,1,2,4])
    if (A(1) /= 3 .or. A(2) /= 5 .or. A(3) /= 5 .or. A(4) /= 4) error stop

    A1 = A1(:,[3,2,1])
    if (A1(1,1) /= 8 .or. A1(2,1) /= 7 .or. A1(3,1) /= 9 .or. &
        & A1(1,2) /= 5 .or. A1(2,2) /= 5 .or. A1(3,2) /= 6 .or. &
        & A1(1,3) /= 5 .or. A1(2,3) /= 5 .or. A1(3,3) /= 3) error stop

    A2 = A2(:,[2,1],:)
    if (A2(1,1,1) /= 4 .or. A2(2,1,1) /= 4 .or. A2(1,2,1) /= 5 .or. A2(2,2,1) /= 5 .or. &
         & A2(1,1,2) /= 2 .or. A2(2,1,2) /= 8 .or. A2(1,2,2) /= 5 .or. A2(2,2,2) /= 5) error stop

    A1(1,1:2) = A1(1,[2,1]) - A(1:2)
    if (A1(1,1) /= 2 .or. A1(2,1) /= 7 .or. A1(3,1) /= 9 .or. &
        & A1(1,2) /= 3 .or. A1(2,2) /= 5 .or. A1(3,2) /= 6 .or. &
        & A1(1,3) /= 5 .or. A1(2,3) /= 5 .or. A1(3,3) /= 3) error stop

    A1 = A1 * A1(1,1)
    if (A1(1,1) /= 4 .or. A1(2,1) /= 14 .or. A1(3,1) /= 18 .or. &
        & A1(1,2) /= 6 .or. A1(2,2) /= 10 .or. A1(3,2) /= 12 .or. &
        & A1(1,3) /= 10 .or. A1(2,3) /= 10 .or. A1(3,3) /= 6) error stop

    A2(:,1,:) = A2(1,:,:) * A2(1,1,1)
    if (A2(1,1,1) /= 16 .or. A2(2,1,1) /= 20 .or. A2(1,2,1) /= 5 .or. A2(2,2,1) /= 5 .or. &
         & A2(1,1,2) /= 8 .or. A2(2,1,2) /= 20 .or. A2(1,2,2) /= 5 .or. A2(2,2,2) /= 5) error stop

    A1([2,1],[1,2]) = A1([1,2],[3,2]) * A1(2,1)
    if (A1(1,1) /= 140 .or. A1(2,1) /= 140 .or. A1(3,1) /= 18 .or. &
        & A1(1,2) /= 140 .or. A1(2,2) /= 84 .or. A1(3,2) /= 12 .or. &
        & A1(1,3) /= 10 .or. A1(2,3) /= 10 .or. A1(3,3) /= 6) error stop

end program