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gcc/libstdc++-v3/include/bits
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Tomasz Kamiński d49d359b0c libstdc++: Fix dereferencing of std::indirect xvalues [PR121128] 
Forr rvalues the _Self parameter deduces a non-reference type. Consequently,
((_Self)__self) moved the object to a temporary, which then destroyed on
function exit.

This patch fixes this by using a C-style cast __self to (const indirect&).
This not only resolves the above issue but also correctly handles types that
are derived (publicly and privately) from indirect. Allocator requirements in
[allocator.requirements.general] p22 guarantee that dereferencing const _M_objp
works with equivalent semantics to dereferencing _M_objp.

	PR libstdc++/121128

libstdc++-v3/ChangeLog:

	* include/bits/indirect.h (indirect::operator*):
	Cast __self to approparietly qualified indirect.
	* testsuite/std/memory/indirect/access.cc: New test.
	* testsuite/std/memory/polymorphic/access.cc: New test.

Reviewed-by: Jonathan Wakely <jwakely@redhat.com>
Signed-off-by: Tomasz Kamiński <tkaminsk@redhat.com>
2025-08-04 13:19:24 +02:00
..
algorithmfwd.h
libstdc++: add constexpr stable_partition
2025-03-27 13:47:30 +01:00
align.h
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alloc_traits.h
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allocated_ptr.h
libstdc++: Define _Scoped_allocation RAII helper
2025-05-22 14:20:35 +02:00
allocator.h
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2025-01-02 11:59:57 +01:00
atomic_base.h
libstdc++: Remove misleading comment in __atomic_base<Int>
2025-02-22 21:20:19 +00:00
atomic_futex.h
libstdc++: Fix unused parameter warnings in <bits/atomic_futex.h>
2025-01-10 21:06:21 +00:00
atomic_timed_wait.h
libstdc++: Add assertions to atomic waiting functions that need platform wait
2025-06-06 09:52:31 +01:00
atomic_wait.h
libstdc++: Add assertions to atomic waiting functions that need platform wait
2025-06-06 09:52:31 +01:00
basic_ios.h
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basic_ios.tcc
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basic_string.h
libstdc++: Remove spaces before function parameter list
2025-06-02 18:24:30 +01:00
basic_string.tcc
libstdc++: Fix std::string construction from volatile char* [PR119748]
2025-04-15 09:24:58 +01:00
boost_concept_check.h
libstdc++: Disable -Wlong-long warnings in boost_concept_check.h
2025-05-29 11:49:03 +01:00
c++0x_warning.h
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2025-01-02 11:59:57 +01:00
c++config
libstdc++: Implement P0849R8 auto(x) library changes
2025-06-04 14:55:40 -04:00
char_traits.h
libstdc++: Use constexpr-if for C++11 and C++14
2025-04-29 10:52:59 +01:00
charconv.h
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2025-01-02 11:59:57 +01:00
chrono_io.h
libstdc++: Fixed localized empty-spec formatting for months/weekdays [PR121154]
2025-07-18 15:29:01 +02:00
chrono.h
libstdc++: Make system_clock::to_time_t always_inline [PR99832]
2025-06-04 20:15:44 +01:00
codecvt.h
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concept_check.h
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cow_string.h
libstdc++: Fix std::string construction from volatile char* [PR119748]
2025-04-15 09:24:58 +01:00
cpp_type_traits.h
libstdc++: Always treat __float128 as a floating-point type
2025-07-11 08:34:17 +01:00
cpyfunc_impl.h
libstdc++: Pass small trivial types by value in polymorphic wrappers
2025-06-02 13:52:35 +02:00
deque.tcc
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
elements_of.h
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enable_special_members.h
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erase_if.h
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formatfwd.h
libstdc++: add range support to std::optional (P3168)
2025-06-12 18:29:37 +02:00
forward_list.h
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
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forward_list.tcc
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fs_dir.h
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fs_fwd.h
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fs_ops.h
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fs_path.h
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fstream.tcc
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funcref_impl.h
libstdc++: Pass small trivial types by value in polymorphic wrappers
2025-06-02 13:52:35 +02:00
functexcept.h
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2025-01-02 11:59:57 +01:00
functional_hash.h
libstdc++: Ensure std::hash<__int128> is defined [PR96710]
2025-07-15 10:25:34 +01:00
funcwrap.h
libstdc++: Pass small trivial types by value in polymorphic wrappers
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gslice_array.h
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gslice.h
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2025-01-02 11:59:57 +01:00
hashtable_policy.h
libstdc++: [_Hashtable] Fix hash code cache usage when stateful hash functor
2025-02-25 22:27:14 +01:00
hashtable.h
libstdc++: Add P1206R7 from_range members to unordered sets [PR111055]
2025-03-18 15:12:53 +01:00
indirect_array.h
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indirect.h
libstdc++: Fix dereferencing of std::indirect xvalues [PR121128]
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invoke.h
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ios_base.h
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istream.tcc
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iterator_concepts.h
libstdc++: Treat __int128 as a real integral type [PR96710]
2025-07-11 08:34:13 +01:00
list.tcc
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locale_classes.h
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locale_classes.tcc
libstdc++: Handle errors from strxfrm in std::collate::transform [PR85824]
2025-01-08 12:45:37 +00:00
locale_conv.h
libstdc++: Use constexpr-if for C++11 and C++14
2025-04-29 10:52:59 +01:00
locale_facets_nonio.h
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locale_facets_nonio.tcc
libstdc++: Fix "IEE" typo in comment in std::time_put::do_put
2025-03-19 23:29:06 +00:00
locale_facets.h
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locale_facets.tcc
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localefwd.h
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mask_array.h
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max_size_type.h
libstdc++: Treat __int128 as a real integral type [PR96710]
2025-07-11 08:34:13 +01:00
memory_resource.h
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memoryfwd.h
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mofunc_impl.h
libstdc++: Pass small trivial types by value in polymorphic wrappers
2025-06-02 13:52:35 +02:00
monostate.h
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move.h
libstdc++: Constrain std::swap using concepts in C++20
2025-07-15 20:31:48 +01:00
new_allocator.h
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node_handle.h
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ostream_insert.h
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ostream.h
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2025-04-29 10:52:59 +01:00
ostream.tcc
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out_ptr.h
libstdc++: #ifdef out #pragma GCC system_header
2024-09-25 08:20:45 -04:00
parse_numbers.h
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postypes.h
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predefined_ops.h
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ptr_traits.h
libstdc++: Fix -Wmismatched-tags warnings for _Safe_iterator [PR120112]
2025-05-06 17:19:25 +01:00
quoted_string.h
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random.h
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random.tcc
libstdc++: Use constexpr-if for C++11 and C++14
2025-04-29 10:52:59 +01:00
range_access.h
libstdc++: Add conditional noexcept to remaining range access functions
2025-02-15 10:58:56 +00:00
ranges_algo.h
libstdc++: Implement ranges::shift_left/right from P2440R1
2025-07-06 14:49:34 -04:00
ranges_algobase.h
libstdc++: Fix ranges::move and ranges::move_backward to use iter_move [PR105609]
2025-02-28 21:35:27 +00:00
ranges_base.h
libstdc++: Make ranges::advance(it, n, bound) follow standard more strictly
2025-07-15 20:31:47 +01:00
ranges_cmp.h
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ranges_uninitialized.h
libstdc++: Ensure that ranges::destroy destroys in constexpr [PR121024]
2025-07-15 10:25:48 +01:00
ranges_util.h
libstdc++: Make range adaptor __has_arrow helper use a const type
2025-03-12 10:12:36 +00:00
refwrap.h
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regex_automaton.h
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regex_automaton.tcc
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regex_compiler.h
libstdc++: Use constexpr-if to slightly simplify <regex>
2025-04-29 19:54:35 +01:00
regex_compiler.tcc
libstdc++: Use constexpr-if to slightly simplify <regex>
2025-04-29 19:54:35 +01:00
regex_constants.h
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regex_error.h
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regex_executor.h
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regex_executor.tcc
libstdc++: Use constexpr-if to slightly simplify <regex>
2025-04-29 19:54:35 +01:00
regex_scanner.h
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regex_scanner.tcc
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regex.h
libstdc++: Handle errors from strxfrm in std::collate::transform [PR85824]
2025-01-08 12:45:37 +00:00
regex.tcc
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requires_hosted.h
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sat_arith.h
libstdc++: #ifdef out #pragma GCC system_header
2024-09-25 08:20:45 -04:00
semaphore_base.h
libstdc++: Use std::conditional_t instead of lambda to select semaphore implementation
2025-06-06 20:15:07 +01:00
shared_ptr_atomic.h
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2025-01-02 11:59:57 +01:00
shared_ptr_base.h
libstdc++: Add smart ptr owner_equals and owner_hash [PR117403]
2025-07-09 12:14:40 +01:00
shared_ptr.h
libstdc++: Add smart ptr owner_equals and owner_hash [PR117403]
2025-07-09 12:14:40 +01:00
slice_array.h
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specfun.h
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sstream.tcc
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2025-01-02 11:59:57 +01:00
std_abs.h
libstdc++: Support std::abs for 128-bit integers and floats [PR96710]
2025-05-27 12:11:43 +01:00
std_function.h
libstdc++: Use constexpr-if in std::function for C++11 and C++14
2025-04-29 10:52:59 +01:00
std_mutex.h
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std_thread.h
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2025-01-02 11:59:57 +01:00
stl_algo.h
libstdc++: do not use an unreserved name in _Temporary_buffer [PR119496]
2025-06-12 18:41:30 +02:00
stl_algobase.h
libstdc++: Always treat __float128 as a floating-point type
2025-07-11 08:34:17 +01:00
stl_bvector.h
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
stl_construct.h
libstdc++: Replace some uses of std::__addressof with std::addressof
2025-06-11 10:35:27 +01:00
stl_deque.h
libstdc++: Remove spaces before function parameter list
2025-06-02 18:24:30 +01:00
stl_function.h
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stl_heap.h
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stl_iterator_base_funcs.h
libstdc++: Teach std::distance and std::advance about C++20 iterators [PR102181]
2025-07-28 17:04:04 +02:00
stl_iterator_base_types.h
libstdc++: Only define __any_input_iterator for C++20
2025-07-19 00:10:10 +01:00
stl_iterator.h
libstdc++: Fix attribute order on __normal_iterator friends [PR120949]
2025-07-07 21:50:51 +01:00
stl_list.h
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
stl_map.h
libstdc++: Optimize removal from unique assoc containers [PR112934]
2025-04-29 15:08:53 +01:00
stl_multimap.h
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
stl_multiset.h
libstdc++: Define __cpp_lib_containers_ranges in appropriate headers [PR111055]
2025-04-11 13:56:03 +02:00
stl_numeric.h
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2025-01-02 11:59:57 +01:00
stl_pair.h
libstdc++: Add comments to deleted std::swap overloads for LWG 2766
2025-07-14 21:41:37 +01:00
stl_queue.h
libstdc++: Implement formatters for queue, priority_queue and stack [PR109162]
2025-04-25 13:02:04 +02:00
stl_raw_storage_iter.h
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stl_relops.h
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stl_set.h
libstdc++: Optimize removal from unique assoc containers [PR112934]
2025-04-29 15:08:53 +01:00
stl_stack.h
libstdc++: Implement formatters for queue, priority_queue and stack [PR109162]
2025-04-25 13:02:04 +02:00
stl_tempbuf.h
libstdc++: do not use an unreserved name in _Temporary_buffer [PR119496]
2025-06-12 18:41:30 +02:00
stl_tree.h
libstdc++: Optimize removal from unique assoc containers [PR112934]
2025-04-29 15:08:53 +01:00
stl_uninitialized.h
libstdc++: Fix __uninitialized_default for constexpr case
2025-07-09 17:56:22 +01:00
stl_vector.h
libstdc++: Replace some implicit conversions in std::vector
2025-06-03 10:53:00 +01:00
stream_iterator.h
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streambuf_iterator.h
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streambuf.tcc
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string_view.tcc
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stringfwd.h
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text_encoding-data.h
libstdc++: Fix Python scripts to output the correct filename
2024-03-19 15:20:07 +00:00
this_thread_sleep.h
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2025-01-02 11:59:57 +01:00
unicode-data.h
libstdc++: Implement debug format for strings and characters formatters [PR109162]
2025-04-11 08:43:50 +02:00
unicode.h
libstdc++: Implement reverse iteration for _Utf_view
2025-07-18 10:29:58 +01:00
uniform_int_dist.h
libstdc++: Use constexpr-if for C++11 and C++14
2025-04-29 10:52:59 +01:00
unique_lock.h
libstdc++: Make std::unique_lock self-move-assignable
2025-03-06 16:46:19 +00:00
unique_ptr.h
libstdc++: Add comments to deleted std::swap overloads for LWG 2766
2025-07-14 21:41:37 +01:00
unordered_map.h
libstdc++: doc: Rectify referencing of non-existent type
2025-07-25 14:29:02 +02:00
unordered_set.h
libstdc++: Implement missing allocator-aware constructors for unordered containers.
2025-04-28 10:09:26 +02:00
uses_allocator_args.h
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uses_allocator.h
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2025-01-02 11:59:57 +01:00
utility.h
libstdc++: Implement C++26 function_ref [PR119126]
2025-05-26 11:25:28 +02:00
valarray_after.h
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valarray_array.h
libstdc++: Use constexpr-if for C++11 and C++14
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valarray_array.tcc
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valarray_before.h
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vector.tcc
libstdc++: Replace some implicit conversions in std::vector
2025-06-03 10:53:00 +01:00
version.def
libstdc++: Add std::inplace_vector for C++26 (P0843R14) [PR119137]
2025-07-18 09:49:34 +02:00
version.h
libstdc++: Add std::inplace_vector for C++26 (P0843R14) [PR119137]
2025-07-18 09:49:34 +02:00
version.tpl
libstdc++: allow defining version FTMs without standard-named macros
2025-04-04 09:58:54 +01:00