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1 ! { dg-do run }
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2 ! { dg-require-effective-target fortran_large_real }
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3 ! Program to test the UNPACK intrinsic for large real type
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4 program intrinsic_unpack
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5 implicit none
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6 integer,parameter :: k = selected_real_kind (precision (0.0_8) + 1)
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7
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8 real(kind=k), dimension(3,3) :: ark, brk
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9 complex(kind=k), dimension(3,3) :: ack, bck
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10
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11 logical, dimension(3, 3) :: mask
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12 character(len=500) line1, line2
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13 integer i
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14
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15 mask = reshape ((/.false.,.true.,.false.,.true.,.false.,.false.,&
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16 &.false.,.false.,.true./), (/3, 3/));
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17
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18 ark = reshape ((/1._k, 0._k, 0._k, 0._k, 1._k, 0._k, 0._k, 0._k, 1._k/), &
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19 (/3, 3/));
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20 brk = unpack ((/2._k, 3._k, 4._k/), mask, ark)
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21 if (any (brk .ne. reshape ((/1._k, 2._k, 0._k, 3._k, 1._k, 0._k, &
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22 0._k, 0._k, 4._k/), (/3, 3/)))) &
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23 STOP 1
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24 write (line1,'(9F9.5)') brk
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25 write (line2,'(9F9.5)') unpack((/2._k, 3._k, 4._k/), mask, ark)
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26 if (line1 .ne. line2) STOP 2
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27 brk = -1._k
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28 brk = unpack ((/2._k, 3._k, 4._k/), mask, 0._k)
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29 if (any (brk .ne. reshape ((/0._k, 2._k, 0._k, 3._k, 0._k, 0._k, &
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30 0._k, 0._k, 4._k/), (/3, 3/)))) &
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31 STOP 3
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32
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33 ack = reshape ((/1._k, 0._k, 0._k, 0._k, 1._k, 0._k, 0._k, 0._k, 1._k/), &
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34 (/3, 3/));
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35 bck = unpack ((/(2._k, 0._k), (3._k, 0._k), (4._k, 0._k)/), mask, ack)
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36 if (any (real(bck) .ne. reshape ((/1._k, 2._k, 0._k, 3._k, 1._k, 0._k, &
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37 0._k, 0._k, 4._k/), (/3, 3/)))) &
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38 STOP 4
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39 write (line1,'(18F9.5)') bck
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40 write (line2,'(18F9.5)') unpack((/(2._k, 0._k), (3._k, 0._k), (4._k,0._k)/), &
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41 mask, ack)
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42 if (line1 .ne. line2) STOP 5
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43
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44 end program
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