libstdc++-v3/ChangeLog:
* include/backward/backward_warning.h: Adjust comments to
suggest <spanstream> as another alternative to <strstream>.
* include/backward/strstream (strstreambuf, istrstream)
(ostrstream, strstream): Add deprecated attribute.
libstdc++-v3/ChangeLog:
* include/backward/auto_ptr.h: Use https for URL in comment.
* include/bits/basic_ios.h: Likewise.
* include/std/iostream: Likewise.
This adds checks for _GLIBCXX_HOSTED to a number of headers which are
not currently installed for freestanding, but need to be for P1642R11
support. For example, <iterator> needs to be installed for C++23
freestanding mode, but without stream iterators and streambuf iterators.
Similarly, <memory> needs to be installed, but without std::allocator
and std::shared_ptr. This change disables the non-freestanding parts of
those headers.
libstdc++-v3/ChangeLog:
PR libstdc++/106953
* include/backward/auto_ptr.h [!_GLIBCXX_HOSTED]: Do not define
shared_ptr members.
* include/bits/alloc_traits.h [!_GLIBCXX_HOSTED]: Do not declare
std::allocator_traits<std::allocator<T>> specializations for
freestanding.
* include/bits/memoryfwd.h [!_GLIBCXX_HOSTED] (allocator): Do
not declare for freestanding.
* include/bits/stl_algo.h [!_GLIBCXX_HOSTED] (stable_partition):
Do not define for freestanding.
[!_GLIBCXX_HOSTED] (merge, stable_sort): Do not use temporary
buffers for freestanding.
* include/bits/stl_algobase.h [!_GLIBCXX_HOSTED]: Do not declare
streambuf iterators and overloaded algorithms using them.
* include/bits/stl_uninitialized.h [!_GLIBCXX_HOSTED]: Do not
define specialized overloads for std::allocator.
* include/bits/unique_ptr.h [!_GLIBCXX_HOSTED] (make_unique)
(make_unique_for_overwrite, operator<<): Do not define for
freestanding.
* include/c_global/cstdlib [!_GLIBCXX_HOSTED] (_Exit): Declare.
Use _GLIBCXX_NOTHROW instead of throw().
* include/debug/assertions.h [!_GLIBCXX_HOSTED]: Ignore
_GLIBCXX_DEBUG for freestanding.
* include/debug/debug.h [!_GLIBCXX_DEBUG]: Likewise.
* include/std/bit [!_GLIBCXX_HOSTED]: Do not use the custom
__int_traits if <ext/numeric_traits.h> is available.
* include/std/functional [!_GLIBCXX_HOSTED]: Do not include
headers that aren't valid for freestanding.
(boyer_moore_searcher, boyer_moore_horspool_searcher): Do not
define for freestanding.
* include/std/iterator [!_GLIBCXX_HOSTED]: Do not include
headers that aren't valid for freestanding.
* include/std/memory [!_GLIBCXX_HOSTED]: Likewise.
* include/std/ranges [!_GLIBCXX_HOSTED] (istream_view): Do not
define for freestanding.
(views::__detail::__is_basic_string_view) [!_GLIBCXX_HOSTED]:
Do not define partial specialization for freestanding.
There are a lot of things in the C++ standard library which were
deprecated in C++11, and more in C++17. Some of them were removed after
deprecation and are no longer present in the standard at all. We have
not removed these from libstdc++ because keeping them as non-standard
extensions is conforming, and avoids gratuitously breaking user code,
and in some cases we need to keep using them to avoid ABI changes. But
we should at least give a warning for using them. That has not been done
previously because of the library's own uses of them (e.g. the
std::iterator class template used as a base class).
This adds deprecated attributes to the relevant components, and then
goes through the whole library to add diagnostic pragmas where needed to
suppress warnings about our internal uses of them. The tests are updated
to either expect the additional warnings, or to suppress them where we
aren't interested in them.
libstdc++-v3/ChangeLog:
PR libstdc++/91260
PR libstdc++/91383
PR libstdc++/95065
* include/backward/binders.h (bind1st, bind2nd): Add deprecated
attribute.
* include/bits/refwrap.h (_Maybe_unary_or_binary_function):
Disable deprecated warnings for base classes.
(_Reference_wrapper_base): Likewise.
* include/bits/shared_ptr_base.h (_Sp_owner_less): Likewise.
* include/bits/stl_bvector.h (_Bit_iterator_base): Likewise.
* include/bits/stl_function.h (unary_function, binary_function):
Add deprecated attribute.
(unary_negate, not1, binary_negate, not2, ptr_fun)
(pointer_to_unary_function, pointer_to_binary_function)
(mem_fun_t, const_mem_fun_t, mem_fun_ref_t, const_mem_fun_ref_t)
(mem_fun1_t, const_mem_fun1_t, mem_fun_ref1_t)
(const_mem_fun1_ref_t, mem_fun, mem_fun_ref): Add deprecated
attributes.
* include/bits/stl_iterator.h: Disable deprecated warnings for
std::iterator base classes.
* include/bits/stl_iterator_base_types.h (iterator): Add
deprecated attribute.
* include/bits/stl_map.h (map::value_compare): Disable
deprecated warnings for base class.
* include/bits/stl_multimap.h (multimap::value_compare):
Likewise.
* include/bits/stl_raw_storage_iter.h (raw_storage_iterator):
Add deprecated attribute.
* include/bits/stl_tempbuf.h (get_temporary_buffer): Likewise.
* include/bits/stream_iterator.h: Disable deprecated warnings.
* include/bits/streambuf_iterator.h: Likewise.
* include/ext/bitmap_allocator.h: Remove unary_function base
classes.
* include/ext/functional: Disable deprecated warnings.
* include/ext/rope: Likewise.
* include/ext/throw_allocator.h: Likewise.
* include/std/type_traits (result_of): Add deprecated attribute.
* include/tr1/functional: Disable deprecated warnings.
* include/tr1/functional_hash.h: Likewise.
* testsuite/20_util/function_objects/binders/1.cc: Add
-Wno-disable-deprecations.
* testsuite/20_util/function_objects/binders/3113.cc: Likewise.
* testsuite/20_util/function_objects/constexpr.cc: Add
dg-warning.
* testsuite/20_util/raw_storage_iterator/base.cc: Likewise.
* testsuite/20_util/raw_storage_iterator/dr2127.cc: Likewise.
* testsuite/20_util/raw_storage_iterator/requirements/base_classes.cc:
Likewise.
* testsuite/20_util/raw_storage_iterator/requirements/explicit_instantiation/1.cc:
Likewise.
* testsuite/20_util/raw_storage_iterator/requirements/typedefs.cc:
Likewise.
* testsuite/20_util/reference_wrapper/24803.cc:
Likewise.
* testsuite/20_util/reference_wrapper/typedefs.cc: Enable for
C++20 and check for absence of nested types.
* testsuite/20_util/shared_ptr/comparison/less.cc: Remove
std::binary_function base class.
* testsuite/20_util/temporary_buffer.cc: Add dg-warning.
* testsuite/21_strings/basic_string/cons/char/69092.cc: Remove
std::iterator base class.
* testsuite/24_iterators/back_insert_iterator/requirements/base_classes.cc:
Likewise.
* testsuite/24_iterators/front_insert_iterator/requirements/base_classes.cc:
Likewise.
* testsuite/24_iterators/insert_iterator/requirements/base_classes.cc:
Likewise.
* testsuite/24_iterators/istream_iterator/requirements/base_classes.cc:
Likewise.
* testsuite/24_iterators/istreambuf_iterator/92285.cc:
Likewise.
* testsuite/24_iterators/istreambuf_iterator/requirements/base_classes.cc:
Likewise.
* testsuite/24_iterators/ostream_iterator/requirements/base_classes.cc:
Likewise.
* testsuite/24_iterators/ostreambuf_iterator/requirements/base_classes.cc:
Likewise.
* testsuite/24_iterators/reverse_iterator/requirements/base_classes.cc:
Likewise.
* testsuite/25_algorithms/copy/34595.cc:
Likewise.
* testsuite/25_algorithms/minmax/3.cc: Remove std::binary_function
base class.
* testsuite/25_algorithms/all_of/requirements/explicit_instantiation/2.cc:
Disable deprecated warnings.
* testsuite/25_algorithms/all_of/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/any_of/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/any_of/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/copy_if/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/copy_if/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/count_if/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/count_if/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/find_end/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/find_end/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/find_first_of/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/find_first_of/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/find_if/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/find_if/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/find_if_not/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/find_if_not/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/for_each/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/for_each/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/is_partitioned/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/is_partitioned/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/is_permutation/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/is_permutation/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/none_of/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/none_of/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/partition/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/partition/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/partition_copy/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/partition_copy/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/partition_point/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/partition_point/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/random_shuffle/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/random_shuffle/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/remove_copy_if/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/remove_copy_if/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/remove_if/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/remove_if/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/replace_copy_if/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/replace_copy_if/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/replace_if/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/replace_if/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/search/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/search/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/search_n/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/search_n/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/stable_partition/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/stable_partition/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/25_algorithms/transform/requirements/explicit_instantiation/2.cc:
Likewise.
* testsuite/25_algorithms/transform/requirements/explicit_instantiation/pod.cc:
Likewise.
* testsuite/27_io/basic_filebuf/underflow/wchar_t/9178.cc: Add
dg-warning.
* testsuite/ext/pb_ds/example/priority_queue_erase_if.cc:
Likewise.
* testsuite/ext/pb_ds/example/priority_queue_split_join.cc:
Likewise.
* testsuite/tr1/3_function_objects/reference_wrapper/typedefs.cc:
Disable deprecated warnings.
* testsuite/tr1/6_containers/hash/requirements/base_classes.cc:
Likewise.
* testsuite/util/regression/trait/erase_if_fn.hpp: Remove
std::unary_function base classes.
* testsuite/util/testsuite_iterators.h (output_iterator_wrapper):
Remove std::iterator base classes.
Back in 2017 I removed these prehistoric members (which were deprecated
since C++98) for C++17 mode. But I didn't add deprecated attributes to
most of them, so users didn't get any warning they would be going away.
Apparently some poor souls do actually use some of these names, and so
now that GCC 11 defaults to -std=gnu++17 some code has stopped
compiling.
This adds deprecated attributes to them, so that C++98/03/11/14 code
will get a warning if it uses them. I'll also backport this to the
release branches so that users can find out about the deprecation before
they start using C++17.
In order to give deprecated warnings even in C++98 mode this patch makes
_GLIBCXX_DEPRECATED work even for C++98, adds _GLIBCXX11_DEPRECATED for
the old meaning of _GLIBCXX_DEPRECATED, and adds new macros such as
_GLIBCXX_DEPRECATED_SUGGEST for suggesting alternatives to deprecated
features.
libstdc++-v3/ChangeLog:
* include/bits/c++config (_GLIBCXX_DEPRECATED): Define for all
standard modes.
(_GLIBCXX_DEPRECATED_SUGGEST): New macro for "use 'foo' instead"
message in deprecated warnings.
(_GLIBCXX11_DEPRECATED, _GLIBCXX11_DEPRECATED_SUGGEST): New
macros for marking features derpecated in C++11.
(_GLIBCXX17_DEPRECATED_SUGGEST, _GLIBCXX20_DEPRECATED_SUGGEST):
New macros.
* include/backward/auto_ptr.h (auto_ptr_ref, auto_ptr<void>):
Use _GLIBCXX11_DEPRECATED instead of _GLIBCXX_DEPRECATED.
(auto_ptr): Use _GLIBCXX11_DEPRECATED_SUGGEST.
* include/backward/binders.h (binder1st, binder2nd): Likewise.
* include/bits/ios_base.h (io_state, open_mode, seek_dir)
(streampos, streamoff): Use _GLIBCXX_DEPRECATED_SUGGEST.
* include/std/streambuf (stossc): Replace C++11 attribute
with _GLIBCXX_DEPRECATED_SUGGEST.
* include/std/type_traits (__is_nullptr_t): Use
_GLIBCXX_DEPRECATED_SUGGEST instead of _GLIBCXX_DEPRECATED.
* testsuite/27_io/types/1.cc: Check for deprecated warnings.
Also check for io_state, open_mode and seek_dir typedefs.
This makes these extensions work with types meeting the Cpp17Allocator
requirements as well as the C++98 Allocator requirements.
* include/backward/hash_set (hash_set): Use __alloc_traits.
* include/backward/hashtable.h (_Hashtable): Likewise.
* include/ext/alloc_traits.h (__alloc_traits::allocate): Add overload
taking a hint.
* include/ext/extptr_allocator.h (_ExtPtr_allocator::allocate): Ignore
hint.
* include/ext/slist (_Slist_base): Use __alloc_traits.
* include/tr1/hashtable.h (_Hashtable): Likewise.
* include/tr1/regex (match_results): Use vector::const_reference
instead of assuming the allocator defines it.
* testsuite/backward/hash_map/23528.cc: Use allocator_traits in C++11.
* testsuite/tr1/6_containers/unordered_map/capacity/29134-map.cc: Use
__gnu_test::max_size.
* testsuite/tr1/6_containers/unordered_multimap/capacity/
29134-multimap.cc: Likewise.
* testsuite/tr1/6_containers/unordered_multiset/capacity/
29134-multiset.cc: Likewise.
* testsuite/tr1/6_containers/unordered_set/capacity/29134-set.cc:
Likewise.
From-SVN: r277335
These headers were missed in the previous commit for this bug.
There are also several "" includes in the profile mode headers, but
because they're deprecated I'm not fixing them.
* include/backward/hash_map: Use <> for includes not "".
* include/backward/hash_set: Likewise.
* include/backward/strstream: Likewise.
* include/tr1/bessel_function.tcc: Likewise.
* include/tr1/exp_integral.tcc: Likewise.
* include/tr1/legendre_function.tcc: Likewise.
* include/tr1/modified_bessel_func.tcc: Likewise.
* include/tr1/riemann_zeta.tcc: Likewise.
From-SVN: r269835
In libstdc++ the deprecated char* streams are non-copyable, as was
required pre-C++11.
Since C++11 the standard implies that those streams should be copyable,
but doesn't specify the effects of copying them. This is surely a
defect, so for consistency with other implementations this change makes
them movable, but not copyable.
PR libstdc++/69608
* include/backward/strstream (strstreambuf): Define move constructor
and move assignment operator.
(istrstream, ostrstream, strstream): Likewise.
* testsuite/backward/strstream_move.cc: New.
From-SVN: r259842
* include/backward/auto_ptr.h (__shared_ptr(auto_ptr&&))
(shared_ptr(auto_ptr&&)): Adjust template parameter lists.
* include/bits/shared_ptr.h (__sp_compatible_with)
(__sp_is_constructible): New helper traits for shared_ptr.
(shared_ptr::_Convertible): Replace with _Constructible.
(shared_ptr::_Constructible, shared_ptr::_Assignable): Forward checks
to base class.
(shared_ptr::shared_ptr, shared_ptr::operator=): Constrain template
with _Constructible and _Assignable.
(shared_ptr::shared_ptr(shared_ptr<_Tp1>, _Tp*)): Use element_type
instead of _Tp.
(operator<): Likewise.
(operator>): Define in terms of operator<.
(static_pointer_cast, const_pointer_cast, dynamic_pointer_cast): Use
element_type instead of _Tp.
(reinterpret_pointer_cast): Define for C++17.
(weak_ptr::_Convertible): Replace with _Constructible.
(weak_ptr::_Constructible, weak_ptr::_Assignable): Forward checks
to base class.
(weak_ptr::weak_ptr, weak_ptr::operator=): Constrain templates
with _Constructible and _Assignable.
* include/bits/shared_ptr_base.h (__shared_ptr::_Convertible): Replace
with _Compatible.
(__shared_ptr::_SafeConv): New constraint for incoming raw pointers.
(__shared_ptr::_Compatible): New constraint for converting from
other types of shared_ptr and weak_ptr.
(__shared_ptr::_Assignable): Define in terms of _Compatible.
(__shared_ptr::_UniqCompatible, __shared_ptr::_UniqAssignable): New
constraints for converting from unique_ptr.
(__shared_ptr::__shared_ptr, __shared_ptr::operator=): Constrain
template with _SaveConf, _Compatible and _Assignable. Remove
__glibcxx_function_requires concept checks. Add static assertion for
deleter expression being well-formed.
(__shared_ptr::__shared_ptr(__shared_ptr<_Tp1>, _Tp*))
(__shared_ptr::operator*, __shared_ptr::operator->)
(__shared_ptr::get, __shared_ptr::_M_ptr): Use element_type instead
of _Tp.
(operator<): Likewise.
(operator>): Define in terms of operator<.
(static_pointer_cast, const_pointer_cast, dynamic_pointer_cast): Use
element_type instead of _Tp.
(reinterpret_pointer_cast): Define for C++17.
(weak_ptr::_Convertible): Replace with _Compatible.
(weak_ptr::_Compatible, weak_ptr::_Assignable): New constraints for
conversions from other types of weak_ptr and shared_ptr.
(__weak_ptr::__weak_ptr, __weak_ptr::operator=): Constrain templates
with _Constructible and _Assignable.
(__weak_ptr::_M_ptr): Use element_type instead of _Tp.
* testsuite/20_util/shared_ptr/assign/auto_ptr_neg.cc: Adjust
dg-error pattern.
* testsuite/20_util/shared_ptr/cons/auto_ptr.cc: Test conversions.
* testsuite/20_util/shared_ptr/cons/unique_ptr.cc: Likewise.
* testsuite/20_util/shared_ptr/cons/void_neg.cc: Likewise.
* testsuite/20_util/shared_ptr/casts/reinterpret.cc: New test.
From-SVN: r241373
* include/backward/auto_ptr.h (__shared_ptr(auto_ptr&&)): Call
_M_enable_shared_from_this_with instead of
__enable_shared_from_this_helper.
* include/bits/shared_ptr.h (__enable_shared_from_this_helper):
Remove overload for std::enable_shared_from_this..
(__enable_shared_from_this_base): Define friend function to select a
std::enable_shared_from_this base class.
* include/bits/shared_ptr_base.h (__enable_shared_from_this_helper):
Remove all overloads.
(__shared_ptr): Change all relevant constructors to call
_M_enable_shared_from_this_with instead of
__enable_shared_from_this_helper.
(__shared_ptr::__efst_base_t, __shared_ptr::__has_efst_base): Helpers
to detect accessible and unambiguous enable_shared_from_this bases.
(__shared_ptr::_M_enable_shared_from_this_with): New function to
replace __enable_shared_from_this_helper overloads.
(__enable_shared_from_this_helper): Remove overload for
std::__enable_shared_from_this.
(__enable_shared_from_this_base): Define friend function to select a
std::__enable_shared_from_this base class.
* include/experimental/bits/shared_ptr.h (experimental::shared_ptr):
Change relevant constructors to call _M_enable_shared_from_this_with.
(experimental::shared_ptr::__efst_base_t)
(experimental::shared_ptr::__has_efst_base): Helpers to detect
accessible and unambiguous enable_shared_from_this bases.
(experimental::shared_ptr::_M_enable_shared_from_this_with): Define.
(experimental::__enable_shared_from_this_helper): Remove overload for
std::experimental::enable_shared_from_this.
(experimental::__expt_enable_shared_from_this_base): Define friend
function to select a std::experimental::enable_shared_from_this base.
* testsuite/experimental/memory/shared_ptr/cons/
enable_shared_from_this.cc: New test.
* testsuite/experimental/memory/shared_ptr/cons/unique_ptr_ctor.cc:
Adjust expected behaviour for shared_ptr<A[]>.
From-SVN: r241353
* include/backward/auto_ptr.h (dauto_ptr): Correct comment about
conversions from auto_ptr<Derived> rvalues to auto_ptr<Base>.
* testsuite/20_util/auto_ptr/assign_neg.cc: Remove redundant dg-error
directives that only match notes, not errors.
From-SVN: r241349
PR libstdc++/49060
* include/backward/hashtable.h (hashtable::erase): Don't crash if
erasing first and another element with a reference to the other
element.
* testsuite/backward/hash_set/49060.cc: New.
From-SVN: r174240
