gcc/libstdc++-v3/testsuite/25_algorithms/copy/34595.cc
Jonathan Wakely de196e5dd8 libstdc++: Add attribute to features deprecated in C++17 [PR91260]
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.
2022-01-14 11:27:50 +00:00

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1.5 KiB
C++

// Copyright (C) 2007-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 25.2.1 [lib.alg.copy] Copy.
#include <algorithm>
#include <testsuite_hooks.h>
class Counting_output_iterator
: public std::iterator< std::output_iterator_tag, void, void, void, void > // { dg-warning "is deprecated" "" { target c++17 } }
{
std::size_t c;
public:
Counting_output_iterator() : c(0) {}
Counting_output_iterator& operator++() { return *this; }
Counting_output_iterator operator++(int) { return *this; }
Counting_output_iterator& operator*() { return *this; }
template <typename T>
void operator=(const T&) { ++c; }
std::size_t current_counter() const { return c; }
};
// libstdc++/34595
void test01()
{
int t[10] = {0,};
Counting_output_iterator cnt;
std::size_t res = std::copy(t+0, t+5, cnt).current_counter();
VERIFY( res == 5 );
}
int main()
{
test01();
return 0;
}