Re: [PATCH 20/23] test: dynamic string evaluations.

Jan Kratochvil
2014-06-16T18:41:22Z

On Wed, 04 Jun 2014 07:54:23 +0200, Keven Boell wrote:
> --- /dev/null
> +++ b/gdb/testsuite/gdb.fortran/vla-strings.f90
> @@ -0,0 +1,38 @@
> +! Copyright 2014 Free Software Foundation, Inc.
> +!
> +! This program is free software; you can redistribute it and/or modify
> +! it under the terms of the GNU General Public License as published by
> +! the Free Software Foundation; either version 2 of the License, or
> +! (at your option) any later version.
> +!
> +! This program is distributed in the hope that it will be useful,
> +! but WITHOUT ANY WARRANTY; without even the implied warranty of
> +! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> +! GNU General Public License for more details.
> +!
> +! You should have received a copy of the GNU General Public License
> +! along with this program; if not, write to the Free Software
> +! Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
> +
> +program vla_strings
> + character(len=:), target, allocatable :: var_char
> + character(len=:), pointer :: var_char_p
> + logical :: l
> +
> + allocate(character(len=10) :: var_char)
> + l = allocated(var_char) ! var_char-allocated-1
> + var_char = 'foo'
> + deallocate(var_char) ! var_char-filled-1
> + l = allocated(var_char) ! var_char-deallocated
> + allocate(character(len=42) :: var_char)
> + l = allocated(var_char)
> + var_char = 'foobar'
> + var_char = '' ! var_char-filled-2
> + allocate(character(len=21) :: var_char) ! var_char-empty

On Fedora Rawhide x86_64 (gcc-4.9.0-8.fc21.x86_64) I get:
$ ./gdb.fortran/vla-strings
At line 31 of file ./gdb.fortran/vla-strings.f90
Fortran runtime error: Attempting to allocate already allocated variable 'var_char'

This also causes:
Running ./gdb.fortran/vla-strings.exp ...
FAIL: gdb.fortran/vla-strings.exp: continue to breakpoint: var_char-allocated-3 (the program exited)
FAIL: gdb.fortran/vla-strings.exp: print var_char after allocated third time
FAIL: gdb.fortran/vla-strings.exp: whatis var_char after allocated third time
FAIL: gdb.fortran/vla-strings.exp: ptype var_char after allocated third time
FAIL: gdb.fortran/vla-strings.exp: continue to breakpoint: var_char_p-associated (the program is no longer running)
FAIL: gdb.fortran/vla-strings.exp: print var_char_p after associated
FAIL: gdb.fortran/vla-strings.exp: print *var_char_ after associated
FAIL: gdb.fortran/vla-strings.exp: whatis var_char_p after associated
FAIL: gdb.fortran/vla-strings.exp: ptype var_char_p after associated

> + l = allocated(var_char) ! var_char-allocated-3
> + var_char = 'johndoe'
> + var_char_p => var_char
> + l = associated(var_char_p) ! var_char_p-associated
> + var_char_p => null()
> + l = associated(var_char_p) ! var_char_p-not-associated
> +end program vla_strings
> --
> 1.7.9.5

Thanks,
Jan