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| author | Jonathan Wakely <jwakely@redhat.com> | 2019-02-13 22:13:45 +0000 |
|---|---|---|
| committer | Jonathan Wakely <redi@gcc.gnu.org> | 2019-02-13 22:13:45 +0000 |
| commit | 329c0f891a8e5a18ef8154abca252aeb23585ce2 (patch) | |
| tree | d4e97463123b2f8a19b4e0e9a671bbb86c5ecd5e /gcc | |
| parent | 4d259d3bc067f60410f5d249a085ec6d40f2e082 (diff) | |
| download | gcc-329c0f891a8e5a18ef8154abca252aeb23585ce2.zip gcc-329c0f891a8e5a18ef8154abca252aeb23585ce2.tar.gz gcc-329c0f891a8e5a18ef8154abca252aeb23585ce2.tar.bz2 | |
PR libstdc++/89345 Only define std::destroying_delete for C++2a
Clang defines the __cpp_impl_destroying_delete macro unconditionally, so
that the feature is supported whenever the library type is defined. This
is incompatible with the current definition in libstdc++ because we use
constexpr and inline variables, which will give an error for older -std
modes.
This patch defines the destroying_delete_t type and destroying_delete
variable independently of the __cpp_impl_destroying_delete macro, but
only for C++2a (because the names aren't reserved for previous
standards). The __cpp_lib_destroying_delete macro is only defined when
both the library type and compiler macro are defined (i.e. when the type
can actually be used as intended).
PR libstdc++/89345
* include/std/version [__cpp_impl_destroying_delete]
(__cpp_lib_destroying_delete): Only define for C++2a and later.
* libsupc++/new [__cpp_impl_destroying_delete]
(__cpp_lib_destroying_delete): Likewise.
(destroying_delete_t, destroying_delete): Likewise, but define even
when __cpp_impl_destroying_delete is not defined.
* testsuite/18_support/destroying_delete.cc: New test.
From-SVN: r268856
Diffstat (limited to 'gcc')
0 files changed, 0 insertions, 0 deletions