46 lines
1.3 KiB
Fortran
46 lines
1.3 KiB
Fortran
! { dg-do run }
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!
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! This tests that common blocks function with multiply nested modules.
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! Contributed by Paul Thomas <pault@gcc.gnu.org>
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!
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module mod0
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complex(kind=8) FOO, KANGA
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common /bar/ FOO, KANGA
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contains
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subroutine eyeore ()
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FOO = FOO + (1.0d0, 0.0d0)
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KANGA = KANGA - (1.0d0, 0.0d0)
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end subroutine eyeore
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end module mod0
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module mod1
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use mod0
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complex ROBIN
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common/owl/ROBIN
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end module mod1
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module mod2
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use mod0
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use mod1
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real(kind=8) re1, im1, re2, im2, re, im
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common /bar/ re1, im1, re2, im2
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equivalence (re1, re), (im1, im)
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contains
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subroutine tigger (w)
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complex(kind=8) w
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if (FOO.ne.(1.0d0, 1.0d0)) call abort ()
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if (KANGA.ne.(-1.0d0, -1.0d0)) call abort ()
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if (ROBIN.ne.(99.0d0, 99.0d0)) CALL abort ()
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if (w.ne.cmplx(re,im)) call abort ()
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end subroutine tigger
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end module mod2
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use mod2
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use mod0, only: w=>foo
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w = (0.0d0, 1.0d0) ! Was foo but this is forbidden (11.3.2)
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KANGA = (0.0d0, -1.0d0)
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ROBIN = (99.0d0, 99.0d0)
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call eyeore ()
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call tigger (w)
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end
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! { dg-final { cleanup-modules "mod0 mod1 mod2" } }
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