584a927c5a
Show the type of not-allocated and/or not-associated types. For array
types and pointer to array types we are going to print the number of
ranks.
Consider this Fortran program:
program test
integer, allocatable :: vla (:)
logical l
allocate (vla(5:12))
l = allocated (vla)
end program test
And this GDB session with current HEAD:
(gdb) start
...
2 integer, allocatable :: vla (:)
(gdb) n
4 allocate (vla(5:12))
(gdb) ptype vla
type = <not allocated>
(gdb) p vla
$1 = <not allocated>
(gdb)
And the same session with this patch applied:
(gdb) start
...
2 integer, allocatable :: vla (:)
(gdb) n
4 allocate (vla(5:12))
(gdb) ptype vla
type = integer(kind=4), allocatable (:)
(gdb) p vla
$1 = <not allocated>
(gdb)
The type of 'vla' is now printed correctly, while the value itself
still shows as '<not allocated>'. How GDB prints the type of
associated pointers has changed in a similar way.
gdb/ChangeLog:
* f-typeprint.c (f_print_type): Don't return early for not
associated or not allocated types.
(f_type_print_varspec_suffix): Add print_rank parameter and print
ranks of array types in case they dangling.
(f_type_print_base): Add print_rank parameter.
gdb/testsuite/ChangeLog:
* gdb.fortran/pointers.f90: New file.
* gdb.fortran/print_type.exp: New file.
* gdb.fortran/vla-ptype.exp: Adapt expected results.
* gdb.fortran/vla-type.exp: Likewise.
* gdb.fortran/vla-value.exp: Likewise.
* gdb.mi/mi-vla-fortran.exp: Likewise.
80 lines
2 KiB
Fortran
80 lines
2 KiB
Fortran
! Copyright 2019 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 pointers
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type :: two
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integer, allocatable :: ivla1 (:)
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integer, allocatable :: ivla2 (:, :)
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end type two
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logical, target :: logv
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complex, target :: comv
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character, target :: charv
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character (len=3), target :: chara
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integer, target :: intv
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integer, target, dimension (10,2) :: inta
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real, target :: realv
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type(two), target :: twov
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logical, pointer :: logp
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complex, pointer :: comp
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character, pointer :: charp
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character (len=3), pointer :: charap
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integer, pointer :: intp
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integer, pointer, dimension (:,:) :: intap
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real, pointer :: realp
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type(two), pointer :: twop
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nullify (logp)
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nullify (comp)
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nullify (charp)
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nullify (charap)
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nullify (intp)
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nullify (intap)
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nullify (realp)
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nullify (twop)
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logp => logv ! Before pointer assignment
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comp => comv
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charp => charv
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charap => chara
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intp => intv
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intap => inta
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realp => realv
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twop => twov
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logv = associated(logp) ! Before value assignment
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comv = cmplx(1,2)
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charv = "a"
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chara = "abc"
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intv = 10
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inta(:,:) = 1
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inta(3,1) = 3
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realv = 3.14
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allocate (twov%ivla1(3))
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allocate (twov%ivla2(2,2))
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twov%ivla1(1) = 11
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twov%ivla1(2) = 12
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twov%ivla1(3) = 13
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twov%ivla2(1,1) = 211
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twov%ivla2(2,1) = 221
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twov%ivla2(1,2) = 212
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twov%ivla2(2,2) = 222
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intv = intv + 1 ! After value assignment
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end program pointers
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