[Bug libstdc++/65352] array<T,0>::begin()/end() etc. forms a null reference and breaks on clang+ubsan

redi at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu May 28 16:28:00 GMT 2015


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65352

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu May 28 16:27:56 2015
New Revision: 223842

URL: https://gcc.gnu.org/viewcvs?rev=223842&root=gcc&view=rev
Log:
        PR libstdc++/65352
        * include/profile/array (array::data): Use __array_traits::_S_ptr.
        * include/debug/array (array::data): Likewise.
        * include/std/array (__array_traits::_S_ptr): New function.
        (array::data): Use _S_ptr to avoid creating invalid reference.
        * testsuite/23_containers/array/tuple_interface/get_neg.cc: Adjust
        dg-error line numbers.
        * testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
        likewise.

Modified:
    branches/gcc-4_9-branch/libstdc++-v3/ChangeLog
    branches/gcc-4_9-branch/libstdc++-v3/include/debug/array
    branches/gcc-4_9-branch/libstdc++-v3/include/profile/array
    branches/gcc-4_9-branch/libstdc++-v3/include/std/array
   
branches/gcc-4_9-branch/libstdc++-v3/testsuite/23_containers/array/tuple_interface/get_neg.cc
   
branches/gcc-4_9-branch/libstdc++-v3/testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc



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