[Bug libstdc++/99006] make_shared<T[]> silently works

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99006

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:

https://gcc.gnu.org/g:36d6e7fe997aa85dc64b13ce4bb3c2e51e13cd36

commit r10-9936-g36d6e7fe997aa85dc64b13ce4bb3c2e51e13cd36
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu Apr 22 15:46:51 2021 +0100

    libstdc++: Reject std::make_shared<T[]> [PR 99006]

    Prior to C++20 it should be ill-formed to use std::make_shared with an
    array type (and we don't support the C++20 feature to make it valid yet
    anyway).

    libstdc++-v3/ChangeLog:

            PR libstdc++/99006
            * include/bits/shared_ptr.h (allocate_shared): Assert that _Tp
            is not an array type.
            * include/bits/shared_ptr_base.h (__allocate_shared): Likewise.
            * testsuite/20_util/shared_ptr/creation/99006.cc: New test.

    (cherry picked from commit 55650236cd97d81f42f9fdb4f6bcb12babafe51f)