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178073690a
Nullify pointers to avoid an undefined association status.
2016-03-02 Bernhard Heckel <bernhard.heckel@intel.com>
gdb/testsuite/Changelog:
* gdb.mi/vla.f90: Nullify pointer after declaration.
44 lines
1.3 KiB
Fortran
44 lines
1.3 KiB
Fortran
! Copyright 2015-2016 Free Software Foundation, Inc.
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!
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! This program is free software; you can redistribute it and/or modify
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! it under the terms of the GNU General Public License as published by
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! the Free Software Foundation; either version 3 of the License, or
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! (at your option) any later version.
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!
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! This program is distributed in the hope that it will be useful,
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! but WITHOUT ANY WARRANTY; without even the implied warranty of
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! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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! GNU General Public License for more details.
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!
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! You should have received a copy of the GNU General Public License
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! along with this program. If not, see <http://www.gnu.org/licenses/>.
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program vla
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real, allocatable :: vla1 (:)
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real, target, allocatable :: vla2(:, :)
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real, pointer :: pvla2 (:, :)
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logical :: l
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nullify (pvla2)
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allocate (vla1 (5)) ! vla1-not-allocated
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l = allocated(vla1) ! vla1-allocated
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vla1(:) = 1
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vla1(2) = 42 ! vla1-filled
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vla1(4) = 24
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deallocate (vla1) ! vla1-modified
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l = allocated(vla1) ! vla1-deallocated
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allocate (vla2 (5, 2))
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vla2(:, :) = 2
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pvla2 => vla2 ! pvla2-not-associated
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l = associated(pvla2) ! pvla2-associated
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pvla2(2, 1) = 42
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pvla2 => null()
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l = associated(pvla2) ! pvla2-set-to-null
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end program vla
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