[Bug fortran/54301] Add optional warning if pointer assigning a local variable to a nonlocal pointer

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54301

--- Comment #8 from Tobias Burnus <burnus at gcc dot gnu.org> 2012-08-20 19:49:53 UTC ---
Author: burnus
Date: Mon Aug 20 19:49:46 2012
New Revision: 190542

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190542
Log:
2012-08-20  Tobias Burnus  <burnus@net-b.de>

        PR fortran/54301
        * expr.c (gfc_check_pointer_assign): Warn when a pointer,
        which is a function result, might outlive its target.

2012-08-20  Tobias Burnus  <burnus@net-b.de>

        PR fortran/54301
        * gfortran.dg/warn_target_lifetime_2.f90: New.


Added:
    trunk/gcc/testsuite/gfortran.dg/warn_target_lifetime_2.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/expr.c
    trunk/gcc/testsuite/ChangeLog