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Remove array_allocator extension, deprecated since 4.9.0

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This type is not a conforming allocator, because it cannot be reliably
rebound to allocate for a different type. The result of the rebind
transformation still uses the same underlying std::tr1::array<T, 1>
array, which may not be correctly aligned or even have elements the
right size for the value_type of the rebound allocator.

It has been deprecated for several years and should now be removed.

	* doc/xml/manual/allocator.xml: Remove documentation for
	array_allocator.
	* doc/xml/manual/evolution.xml: Document array_allocator removal.
	* doc/xml/manual/using.xml: Remove header from documentation.
	* include/Makefile.am: Remove <ext/array_allocator.h> header.
	* include/Makefile.in: Regenerate.
	* include/ext/array_allocator.h: Remove.
	* include/precompiled/extc++.h: Do not include removed header.
	* testsuite/ext/array_allocator/1.cc: Remove.
	* testsuite/ext/array_allocator/2.cc: Remove.
	* testsuite/ext/array_allocator/26875.cc: Remove.
	* testsuite/ext/array_allocator/3.cc: Remove.
	* testsuite/ext/array_allocator/check_deallocate_null.cc: Remove.
	* testsuite/ext/array_allocator/check_delete.cc: Remove.
	* testsuite/ext/array_allocator/check_new.cc: Remove.
	* testsuite/ext/array_allocator/variadic_construct.cc: Remove.
	* testsuite/ext/headers.cc: Do not include removed header.

From-SVN: r271119
This commit is contained in:
Jonathan Wakely 2019-05-13 11:49:58 +01:00 • committed by Jonathan Wakely
parent 6db881be90
commit 0d09ca2550
18 changed files with 25 additions and 617 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
libstdc++-v3/ChangeLog
View file

@ -1,3 +1,24 @@
2019-05-11 Jonathan Wakely <jwakely@redhat.com>
Remove array_allocator extension, deprecated since 4.9.0
* doc/xml/manual/allocator.xml: Remove documentation for
array_allocator.
* doc/xml/manual/evolution.xml: Document array_allocator removal.
* doc/xml/manual/using.xml: Remove header from documentation.
* include/Makefile.am: Remove <ext/array_allocator.h> header.
* include/Makefile.in: Regenerate.
* include/ext/array_allocator.h: Remove.
* include/precompiled/extc++.h: Do not include removed header.
* testsuite/ext/array_allocator/1.cc: Remove.
* testsuite/ext/array_allocator/2.cc: Remove.
* testsuite/ext/array_allocator/26875.cc: Remove.
* testsuite/ext/array_allocator/3.cc: Remove.
* testsuite/ext/array_allocator/check_deallocate_null.cc: Remove.
* testsuite/ext/array_allocator/check_delete.cc: Remove.
* testsuite/ext/array_allocator/check_new.cc: Remove.
* testsuite/ext/array_allocator/variadic_construct.cc: Remove.
* testsuite/ext/headers.cc: Do not include removed header.
2019-05-11 François Dumont <fdumont@gcc.gnu.org>
* include/bits/stl_bvector.h

17
libstdc++-v3/doc/xml/manual/allocator.xml
View file

@ -354,23 +354,6 @@
taken care of elsewhere).
</para>
</listitem>
<listitem>
<para>
<classname>array_allocator</classname>
</para>
<para>
Allows allocations of known and fixed sizes using existing
global or external storage allocated via construction of
<classname>std::tr1::array</classname> objects. By using this
allocator, fixed size containers (including
<classname>std::string</classname>) can be used without
instances calling <function>::operator new</function> and
<function>::operator delete</function>. This capability
allows the use of STL abstractions without runtime
complications or overhead, even in situations such as program
startup. For usage examples, please consult the testsuite.
</para>
</listitem>
<listitem>
<para>
<classname>debug_allocator</classname>

4
libstdc++-v3/doc/xml/manual/evolution.xml
View file

@ -947,4 +947,8 @@ now defaults to zero.
</section>
<section xml:id="api.rel_101"><info><title><constant>10</constant></title></info>
<para> <classname>__gnu_cxx::array_allocator</classname> removed. </para>
</section>
</section>

1
libstdc++-v3/doc/xml/manual/using.xml
View file

@ -719,7 +719,6 @@ compiler supports scalar decimal floating-point types defined via
<row>
<entry><filename class="headerfile">ext/algorithm</filename></entry>
<entry><filename class="headerfile">ext/atomicity.h</filename></entry>
<entry><filename class="headerfile">ext/array_allocator.h</filename></entry>
<entry><filename class="headerfile">ext/bitmap_allocator.h</filename></entry>
<entry><filename class="headerfile">ext/cast.h</filename></entry>
</row>

1
libstdc++-v3/include/Makefile.am
View file

@ -563,7 +563,6 @@ ext_headers = \
${ext_srcdir}/aligned_buffer.h \
${ext_srcdir}/alloc_traits.h \
${ext_srcdir}/atomicity.h \
${ext_srcdir}/array_allocator.h \
${ext_srcdir}/bitmap_allocator.h \
${ext_srcdir}/cast.h \
${ext_srcdir}/cmath \

1
libstdc++-v3/include/Makefile.in
View file

@ -906,7 +906,6 @@ ext_headers = \
${ext_srcdir}/aligned_buffer.h \
${ext_srcdir}/alloc_traits.h \
${ext_srcdir}/atomicity.h \
${ext_srcdir}/array_allocator.h \
${ext_srcdir}/bitmap_allocator.h \
${ext_srcdir}/cast.h \
${ext_srcdir}/cmath \

182
libstdc++-v3/include/ext/array_allocator.h
View file

@ -1,182 +0,0 @@
// array allocator -*- C++ -*-
// Copyright (C) 2004-2019 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.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
/** @file ext/array_allocator.h
* This file is a GNU extension to the Standard C++ Library.
*/
#ifndef _ARRAY_ALLOCATOR_H
#define _ARRAY_ALLOCATOR_H 1
#include <bits/c++config.h>
#include <new>
#include <bits/functexcept.h>
#include <tr1/array>
#include <bits/move.h>
#if __cplusplus >= 201103L
#include <type_traits>
#endif
// Suppress deprecated warning for this file.
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
using std::size_t;
using std::ptrdiff_t;
/// Base class.
template<typename _Tp>
class array_allocator_base
{
public:
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef _Tp* pointer;
typedef const _Tp* const_pointer;
typedef _Tp& reference;
typedef const _Tp& const_reference;
typedef _Tp value_type;
pointer
address(reference __x) const _GLIBCXX_NOEXCEPT
{ return std::__addressof(__x); }
const_pointer
address(const_reference __x) const _GLIBCXX_NOEXCEPT
{ return std::__addressof(__x); }
void
deallocate(pointer, size_type)
{
// Does nothing.
}
size_type
max_size() const _GLIBCXX_USE_NOEXCEPT
{ return size_t(-1) / sizeof(_Tp); }
#if __cplusplus >= 201103L
template<typename _Up, typename... _Args>
void
construct(_Up* __p, _Args&&... __args)
{ ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
template<typename _Up>
void
destroy(_Up* __p) { __p->~_Up(); }
#else
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 402. wrong new expression in [some_] allocator::construct
void
construct(pointer __p, const _Tp& __val)
{ ::new((void *)__p) value_type(__val); }
void
destroy(pointer __p) { __p->~_Tp(); }
#endif
} _GLIBCXX_DEPRECATED;
/**
* @brief An allocator that uses previously allocated memory.
* This memory can be externally, globally, or otherwise allocated.
* @ingroup allocators
*/
template<typename _Tp, typename _Array = std::tr1::array<_Tp, 1> >
class array_allocator : public array_allocator_base<_Tp>
{
public:
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef _Tp* pointer;
typedef const _Tp* const_pointer;
typedef _Tp& reference;
typedef const _Tp& const_reference;
typedef _Tp value_type;
typedef _Array array_type;
#if __cplusplus >= 201103L
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 2103. std::allocator propagate_on_container_move_assignment
typedef std::true_type propagate_on_container_move_assignment;
typedef std::true_type is_always_equal;
#endif
private:
array_type* _M_array;
size_type _M_used;
public:
template<typename _Tp1, typename _Array1 = _Array>
struct rebind
{
typedef array_allocator<_Tp1, _Array1> other _GLIBCXX_DEPRECATED;
} _GLIBCXX_DEPRECATED;
array_allocator(array_type* __array = 0) _GLIBCXX_USE_NOEXCEPT
: _M_array(__array), _M_used(size_type()) { }
array_allocator(const array_allocator& __o) _GLIBCXX_USE_NOEXCEPT
: _M_array(__o._M_array), _M_used(__o._M_used) { }
template<typename _Tp1, typename _Array1>
array_allocator(const array_allocator<_Tp1, _Array1>&)
_GLIBCXX_USE_NOEXCEPT
: _M_array(0), _M_used(size_type()) { }
~array_allocator() _GLIBCXX_USE_NOEXCEPT { }
_GLIBCXX_NODISCARD pointer
allocate(size_type __n, const void* = 0)
{
if (_M_array == 0 || _M_used + __n > _M_array->size())
std::__throw_bad_alloc();
pointer __ret = _M_array->begin() + _M_used;
_M_used += __n;
return __ret;
}
} _GLIBCXX_DEPRECATED;
template<typename _Tp, typename _Array>
inline bool
operator==(const array_allocator<_Tp, _Array>&,
const array_allocator<_Tp, _Array>&)
{ return true; }
template<typename _Tp, typename _Array>
inline bool
operator!=(const array_allocator<_Tp, _Array>&,
const array_allocator<_Tp, _Array>&)
{ return false; }
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
#pragma GCC diagnostic pop
#endif

1
libstdc++-v3/include/precompiled/extc++.h
View file

@ -37,7 +37,6 @@
# include <ext/aligned_buffer.h>
#endif
#include <ext/alloc_traits.h>
#include <ext/array_allocator.h>
#include <ext/atomicity.h>
#include <ext/bitmap_allocator.h>
#include <ext/cast.h>

57
libstdc++-v3/testsuite/ext/array_allocator/1.cc
View file

@ -1,57 +0,0 @@
// Copyright (C) 2004-2019 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/>.
// { dg-options "-Wno-deprecated" }
#include <ext/vstring.h>
#include <ext/array_allocator.h>
#include <testsuite_hooks.h>
typedef char char_type;
typedef std::char_traits<char_type> traits_type;
typedef std::tr1::array<char_type, 4> array_type;
array_type extern_array;
void test01()
{
using __gnu_cxx::__versa_string;
typedef __gnu_cxx::array_allocator<char_type, array_type> allocator_type;
typedef __versa_string<char_type, traits_type, allocator_type> string_type;
allocator_type a(&extern_array);
string_type s(a);
try
{
s.reserve(4); // Actually need 4 + 1 + sizeof(std::string::_Rep).
}
catch(std::bad_alloc& obj)
{
VERIFY( true );
}
catch(...)
{
VERIFY( false );
}
}
int main()
{
test01();
return 0;
}

63
libstdc++-v3/testsuite/ext/array_allocator/2.cc
View file

@ -1,63 +0,0 @@
// Copyright (C) 2004-2019 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/>.
// { dg-options "-Wno-deprecated" }
#include <iostream>
#include <ext/vstring.h>
#include <ext/array_allocator.h>
#include <testsuite_hooks.h>
typedef char char_type;
typedef std::char_traits<char_type> traits_type;
typedef std::tr1::array<char_type, 32> array_type;
array_type extern_array;
void test01()
{
using __gnu_cxx::__versa_string;
typedef __gnu_cxx::array_allocator<char_type, array_type> allocator_type;
typedef __versa_string<char_type, traits_type, allocator_type> string_type;
allocator_type a(&extern_array);
string_type s(a);
try
{
s.reserve(4); // Actually need 4 + 1 + sizeof(std::string::_Rep).
}
catch(std::bad_alloc& obj)
{
VERIFY( false );
}
catch(...)
{
VERIFY( false );
}
s.append(1, 'c');
s.append(2, 'b');
std::cout << s.c_str() << std::endl;
}
int main()
{
test01();
return 0;
}

47
libstdc++-v3/testsuite/ext/array_allocator/26875.cc
View file

@ -1,47 +0,0 @@
//
// Copyright (C) 2006-2019 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/>.
// { dg-options "-Wno-deprecated" }
#include <ext/array_allocator.h>
// libstdc++/26875
int main()
{
typedef std::tr1::array<int, 1> array_type;
array_type Array1;
array_type Array2;
typedef __gnu_cxx::array_allocator<int> allocator_type;
allocator_type Allocator1(&Array1);
allocator_type Allocator2(&Array2);
try
{
(void) Allocator1.allocate(1);
(void) Allocator2.allocate(1);
}
catch (std::bad_alloc& ex)
{
// fail, rethrow
throw;
}
return 0;
}

58
libstdc++-v3/testsuite/ext/array_allocator/3.cc
View file

@ -1,58 +0,0 @@
// Copyright (C) 2004-2019 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/>.
// { dg-options "-Wno-deprecated" }
#include <ext/vstring.h>
#include <ext/array_allocator.h>
#include <testsuite_hooks.h>
typedef char char_type;
typedef std::char_traits<char_type> traits_type;
typedef std::tr1::array<char_type, 4> array_type;
array_type extern_array;
void test01()
{
using __gnu_cxx::__versa_string;
typedef __gnu_cxx::array_allocator<char_type, array_type> allocator_type;
typedef __versa_string<char_type, traits_type, allocator_type> string_type;
// Construct array_allocator without underlying array.
allocator_type a;
string_type s(a);
try
{
s.reserve(4); // Actually need 4 + 1 + sizeof(std::string::_Rep).
}
catch(std::bad_alloc& obj)
{
VERIFY( true );
}
catch(...)
{
VERIFY( false );
}
}
int main()
{
test01();
return 0;
}

32
libstdc++-v3/testsuite/ext/array_allocator/check_allocate_max_size.cc
View file

@ -1,32 +0,0 @@
//
// Copyright (C) 2004-2019 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/>.
// { dg-options "-Wno-deprecated" }
// 20.4.1.1 allocator members
#include <ext/array_allocator.h>
#include <testsuite_allocator.h>
int main()
{
typedef int value_type;
typedef __gnu_cxx::array_allocator<value_type> allocator_type;
__gnu_test::check_allocate_max_size<allocator_type>();
return 0;
}

33
libstdc++-v3/testsuite/ext/array_allocator/check_deallocate_null.cc
View file

@ -1,33 +0,0 @@
//
// Copyright (C) 2004-2019 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/>.
// { dg-options "-Wno-deprecated" }
// 20.4.1.1 allocator members
#include <ext/array_allocator.h>
#include <testsuite_allocator.h>
int main()
{
typedef int value_type;
typedef __gnu_cxx::array_allocator<value_type> allocator_type;
__gnu_test::check_deallocate_null<allocator_type>();
return 0;
}

37
libstdc++-v3/testsuite/ext/array_allocator/check_delete.cc
View file

@ -1,37 +0,0 @@
// 2001-11-25 Phil Edwards <pme@gcc.gnu.org>
//
// Copyright (C) 2001-2019 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/>.
// { dg-options "-Wno-deprecated" }
// 20.4.1.1 allocator members
#include <cstdlib>
#include <ext/array_allocator.h>
#include <replacement_memory_operators.h>
int main()
{
typedef unsigned int value_type;
typedef std::tr1::array<value_type, 15> array_type;
typedef __gnu_cxx::array_allocator<value_type, array_type> allocator_type;
array_type store;
allocator_type a(&store);
__gnu_test::check_delete<allocator_type, false>(a);
return 0;
}

37
libstdc++-v3/testsuite/ext/array_allocator/check_new.cc
View file

@ -1,37 +0,0 @@
// 2001-11-25 Phil Edwards <pme@gcc.gnu.org>
//
// Copyright (C) 2001-2019 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/>.
// { dg-options "-Wno-deprecated" }
// 20.4.1.1 allocator members
#include <cstdlib>
#include <ext/array_allocator.h>
#include <replacement_memory_operators.h>
int main()
{
typedef unsigned int value_type;
typedef std::tr1::array<value_type, 15> array_type;
typedef __gnu_cxx::array_allocator<value_type, array_type> allocator_type;
array_type store;
allocator_type a(&store);
__gnu_test::check_new<allocator_type, false>(a);
return 0;
}

49
libstdc++-v3/testsuite/ext/array_allocator/variadic_construct.cc
View file

@ -1,49 +0,0 @@
// { dg-do run { target c++11 } }
// { dg-options "-Wno-deprecated" }
// 2007-10-27 Paolo Carlini <pcarlini@suse.de>
// Copyright (C) 2007-2019 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/>.
// 20.4.1.1 allocator members
#include <ext/array_allocator.h>
#include <utility>
#include <testsuite_hooks.h>
void test01()
{
typedef std::pair<int, char> pair_type;
typedef std::tr1::array<pair_type, 3> array_type;
array_type store;
__gnu_cxx::array_allocator<pair_type, array_type> alloc1(&store);
pair_type* ptp1 = alloc1.allocate(1);
alloc1.construct(ptp1, 3, 'a');
VERIFY( ptp1->first == 3 );
VERIFY( ptp1->second == 'a' );
alloc1.deallocate(ptp1, 1);
}
int main()
{
test01();
return 0;
}

1
libstdc++-v3/testsuite/ext/headers.cc
View file

@ -24,7 +24,6 @@
// subdirectory that are meant to be directly included.
#include <ext/algorithm>
#include <ext/array_allocator.h>
#include <ext/atomicity.h>
#include <ext/bitmap_allocator.h>
#if _GLIBCXX_HAVE_ICONV