[Bug c++/56373] -Wzero-as-null-pointer-constant: does not catch issues with smart pointers

[paolo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56373

--- Comment #6 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> 2013-02-20 09:02:41 UTC ---
Author: paolo
Date: Wed Feb 20 09:02:35 2013
New Revision: 196165

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=196165
Log:
/cp
2013-02-20  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/56373
    * tree.c (maybe_warn_zero_as_null_pointer_constant): Add.
    * cvt.c (ocp_convert): Use the latter.
    (cp_convert_to_pointer): Likewise.
    * decl.c (check_default_argument): Likewise.
    * typeck.c (cp_build_binary_op): Likewise.
    * cp-tree.h (maybe_warn_zero_as_null_pointer_constant): Declare.

/testsuite
2013-02-20  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/56373
    * g++.dg/cpp0x/Wzero-as-null-pointer-constant-2.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/Wzero-as-null-pointer-constant-2.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/cvt.c
    trunk/gcc/cp/decl.c
    trunk/gcc/cp/tree.c
    trunk/gcc/cp/typeck.c
    trunk/gcc/testsuite/ChangeLog