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authorTobias Burnus <burnus@net-b.de>2012-08-20 07:47:46 +0200
committerTobias Burnus <burnus@gcc.gnu.org>2012-08-20 07:47:46 +0200
commitf657024b85d19eefb046c487a6f7e48bd4905dc9 (patch)
tree51ca2ece33f0faaea70effd3caefa5961c1fb915 /gcc/fortran/lang.opt
parenta15f1338f99a03da935ecbb1f04097469296e91a (diff)
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re PR fortran/54301 (Add optional warning if pointer assigning a local variable to a nonlocal pointer)
2012-08-20 Tobias Burnus <burnus@net-b.de> PR fortran/54301 * expr.c (gfc_check_pointer_assign): Warn when the pointer might outlive its target. * gfortran.h (struct gfc_option_t): Add warn_target_lifetime. * options.c (gfc_init_options, set_wall, gfc_handle_option): handle it. * invoke.texi (-Wtarget-lifetime): Document it. (-Wall): Implied it. * lang.opt (-Wtarget-lifetime): New flag. 2012-08-20 Tobias Burnus <burnus@net-b.de> PR fortran/54301 * gfortran.dg/warn_target_lifetime_1.f90: New. From-SVN: r190522
Diffstat (limited to 'gcc/fortran/lang.opt')
-rw-r--r--gcc/fortran/lang.opt4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/fortran/lang.opt b/gcc/fortran/lang.opt
index e0c7cf7..b38b1e8 100644
--- a/gcc/fortran/lang.opt
+++ b/gcc/fortran/lang.opt
@@ -262,6 +262,10 @@ Wrealloc-lhs-all
Fortran Warning
Warn when a left-hand-side variable is reallocated
+Wtarget-lifetime
+Fortran Warning
+Warn if the pointer in a pointer assignment might outlive its target
+
Wreturn-type
Fortran Warning
; Documented in C