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! Program to test the FORALL construct
program testforall
implicit none
integer, dimension (3, 3) :: a
integer, dimension (3) :: b
logical, dimension (3, 3) :: m, tr
integer i
character(len=9) line
a = reshape ((/1, 2, 3, 4, 5, 6, 7, 8, 9/), (/3, 3/));
tr = .true.
if (sum(a) .ne. 45) STOP 1
write (line, 9000) sum(a)
if (line .ne. ' 45 ') STOP 2
b = sum (a, 1)
if (b(1) .ne. 6) STOP 3
if (b(2) .ne. 15) STOP 4
if (b(3) .ne. 24) STOP 5
write (line, 9000) sum (a, 1)
if (line .ne. ' 6 15 24') STOP 6
m = .true.
m(1, 1) = .false.
m(2, 1) = .false.
if (sum (a, mask=m) .ne. 42) STOP 7
if (sum (a, mask=m .and. tr) .ne. 42) STOP 8
write(line, 9000) sum (a, mask=m)
if (line .ne. ' 42 ') STOP 9
b = sum (a, 2, m)
if (b(1) .ne. 11) STOP 10
if (b(2) .ne. 13) STOP 11
if (b(3) .ne. 18) STOP 12
b = sum (a, 2, m .and. tr)
if (b(1) .ne. 11) STOP 13
if (b(2) .ne. 13) STOP 14
if (b(3) .ne. 18) STOP 15
write (line, 9000) sum (a, 2, m)
if (line .ne. ' 11 13 18') STOP 16
9000 format(3I3)
end program
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