status_cxx2014.xml: Update Fundamentals TS status.

* doc/xml/manual/status_cxx2014.xml: Update Fundamentals TS status.
	* include/Makefile.am: Add new header.
	* include/Makefile.in: Regenerate.
	* include/experimental/any: New.
	* include/ext/aligned_buffer.h (__aligned_buffer(nullptr_t)): New
	constructor.
	* testsuite/experimental/any/assign/1.cc: New.
	* testsuite/experimental/any/assign/2.cc: New.
	* testsuite/experimental/any/cons/1.cc: New.
	* testsuite/experimental/any/cons/2.cc: New.
	* testsuite/experimental/any/cons/3.cc: New.
	* testsuite/experimental/any/misc/any_cast.cc: New.
	* testsuite/experimental/any/misc/any_cast_neg.cc: New.
	* testsuite/experimental/any/misc/any_cast_no_rtti.cc: New.
	* testsuite/experimental/any/misc/swap.cc: New.
	* testsuite/experimental/any/modifiers/1.cc: New.
	* testsuite/experimental/any/observers/type.cc: New.

From-SVN: r211669
This commit is contained in:
Jonathan Wakely 2014-06-14 17:00:56 +01:00 committed by Jonathan Wakely
parent ab938b4135
commit e8043fa674
17 changed files with 1268 additions and 2 deletions

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@ -1,3 +1,23 @@
2014-06-14 Jonathan Wakely <jwakely@redhat.com>
* doc/xml/manual/status_cxx2014.xml: Update Fundamentals TS status.
* include/Makefile.am: Add new header.
* include/Makefile.in: Regenerate.
* include/experimental/any: New.
* include/ext/aligned_buffer.h (__aligned_buffer(nullptr_t)): New
constructor.
* testsuite/experimental/any/assign/1.cc: New.
* testsuite/experimental/any/assign/2.cc: New.
* testsuite/experimental/any/cons/1.cc: New.
* testsuite/experimental/any/cons/2.cc: New.
* testsuite/experimental/any/cons/3.cc: New.
* testsuite/experimental/any/misc/any_cast.cc: New.
* testsuite/experimental/any/misc/any_cast_neg.cc: New.
* testsuite/experimental/any/misc/any_cast_no_rtti.cc: New.
* testsuite/experimental/any/misc/swap.cc: New.
* testsuite/experimental/any/modifiers/1.cc: New.
* testsuite/experimental/any/observers/type.cc: New.
2014-06-11 Maciej W. Rozycki <macro@codesourcery.com>
* testsuite/27_io/basic_ostream/inserters_arithmetic/wchar_t/4402.cc

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@ -306,14 +306,13 @@ not in any particular release.
</row>
<row>
<?dbhtml bgcolor="#C8B0B0" ?>
<entry>
<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2013/n3804.html">
N3804
</link>
</entry>
<entry>Any library proposal</entry>
<entry>N</entry>
<entry>Y</entry>
<entry>Library Fundamentals TS</entry>
</row>

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@ -638,6 +638,7 @@ decimal_headers = \
experimental_srcdir = ${glibcxx_srcdir}/include/experimental
experimental_builddir = ./experimental
experimental_headers = \
${experimental_srcdir}/any \
${experimental_srcdir}/optional \
${experimental_srcdir}/string_view \
${experimental_srcdir}/string_view.tcc

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@ -904,6 +904,7 @@ decimal_headers = \
experimental_srcdir = ${glibcxx_srcdir}/include/experimental
experimental_builddir = ./experimental
experimental_headers = \
${experimental_srcdir}/any \
${experimental_srcdir}/optional \
${experimental_srcdir}/string_view \
${experimental_srcdir}/string_view.tcc

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@ -0,0 +1,626 @@
// <experimental/any> -*- C++ -*-
// Copyright (C) 2014 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 experimental/any
* This is a TS C++ Library header.
*/
#ifndef _GLIBCXX_EXPERIMENTAL_ANY
#define _GLIBCXX_EXPERIMENTAL_ANY 1
#pragma GCC system_header
#if __cplusplus <= 201103L
# include <bits/c++14_warning.h>
#else
#include <typeinfo>
#include <memory>
#include <utility>
#include <type_traits>
#include <bits/alloc_traits.h>
#include <bits/uses_allocator.h>
#include <bits/functexcept.h>
namespace std _GLIBCXX_VISIBILITY(default)
{
namespace experimental
{
inline namespace any_v1
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
/**
* @defgroup any Type-safe container of any type
* @ingroup experimental
*
* A type-safe container for single values of value types, as
* described in n3804 "Any Library Proposal (Revision 3)".
*
* @{
*/
/**
* @brief Exception class thrown by a failed @c any_cast
* @ingroup exceptions
*/
class bad_any_cast : public bad_cast
{
public:
virtual const char* what() const noexcept { return "bad_any_cast"; }
};
[[gnu::noreturn]] inline void __throw_bad_any_cast()
{
#ifdef __EXCEPTIONS
throw bad_any_cast{};
#else
__builtin_abort();
#endif
}
/**
* @brief A type-safe container of any type.
*
* An @c any object's state is either empty or it stores a contained object
* of CopyConstructible type.
*/
class any
{
// Holds either pointer to a heap object or the contained object itself.
union _Storage
{
void* _M_ptr;
std::aligned_storage<sizeof(_M_ptr), sizeof(_M_ptr)>::type _M_buffer;
};
template<typename _Tp, typename _Safe = is_nothrow_copy_constructible<_Tp>,
bool _Fits = (sizeof(_Tp) <= sizeof(_Storage))>
using _Internal = std::integral_constant<bool, _Safe::value && _Fits>;
template<typename _Tp>
struct _Manager_internal; // uses small-object optimization
template<typename _Tp>
struct _Manager_external; // creates contained object on the heap
template<typename _Tp>
using _Manager = conditional_t<_Internal<_Tp>::value,
_Manager_internal<_Tp>,
_Manager_external<_Tp>>;
#ifdef __GXX_RTTI
// When RTTI is disabled __any_caster assumes the manager is either
// _Manager_internal or _Manager_external, so this type must not be used.
template<typename _Tp, typename _Alloc>
struct _Manager_alloc; // creates contained object using an allocator
template<typename _Tp, typename _Alloc, typename _TpAlloc
= typename allocator_traits<_Alloc>::template rebind_alloc<_Tp>>
using _ManagerAlloc = conditional_t<_Internal<_Tp>::value,
_Manager_internal<_Tp>,
_Manager_alloc<_Tp, _TpAlloc>>;
#endif
template<typename _Tp, typename _Decayed = decay_t<_Tp>>
using _Decay = enable_if_t<!is_same<_Decayed, any>::value, _Decayed>;
public:
// construct/destruct
/// Default constructor, creates an empty object.
any() noexcept : _M_manager(nullptr) { }
/// Copy constructor, copies the state of @p __other
any(const any& __other) : _M_manager(__other._M_manager)
{
if (!__other.empty())
{
_Arg __arg;
__arg._M_any = this;
_M_manager(_Op_clone, &__other, &__arg);
}
}
/**
* @brief Move constructor, transfer the state from @p __other
*
* @post @c __other.empty() (not guaranteed for other implementations)
*/
any(any&& __other) noexcept
: _M_manager(__other._M_manager),
_M_storage(__other._M_storage)
{ __other._M_manager = nullptr; }
/// Construct with a copy of @p __value as the contained object.
template <typename _ValueType, typename _Tp = _Decay<_ValueType>,
typename _Mgr = _Manager<_Tp>>
any(_ValueType&& __value)
: _M_manager(&_Mgr::_S_manage),
_M_storage(_Mgr::_S_create(std::forward<_ValueType>(__value)))
{
static_assert(is_copy_constructible<_Tp>::value,
"The contained object must be CopyConstructible");
}
/// Allocator-extended default constructor (the allocator is ignored).
template <typename _Allocator>
any(allocator_arg_t, const _Allocator&) noexcept : any() { }
#ifdef __GXX_RTTI
/// Construct with a copy of @p __value as the contained object.
template <typename _Allocator, typename _ValueType,
typename _Tp = _Decay<_ValueType>,
typename _Mgr = _ManagerAlloc<_Tp, _Allocator>>
any(allocator_arg_t, const _Allocator& __a, _ValueType&& __value)
: _M_manager(&_Mgr::_S_manage),
_M_storage(_Mgr::_S_alloc(__a, std::forward<_ValueType>(__value)))
{
static_assert(is_copy_constructible<_Tp>::value,
"The contained object must be CopyConstructible");
}
#endif
/* TODO: implement this somehow
/// Allocator-extended copy constructor.
template <class _Allocator>
any(allocator_arg_t, const _Allocator& __a, const any& __other);
*/
/// Allocator-extended move constructor (the allocator is ignored).
template <typename _Allocator>
any(allocator_arg_t, const _Allocator&, any&& __other) noexcept
: any(std::move(__other)) { }
/// Destructor, calls @c clear()
~any() { clear(); }
// assignments
/// Copy the state of
any& operator=(const any& __rhs)
{
any(__rhs).swap(*this);
return *this;
}
/**
* @brief Move assignment operator
*
* @post @c __rhs.empty() (not guaranteed for other implementations)
*/
any& operator=(any&& __rhs) noexcept
{
any(std::move(__rhs)).swap(*this);
return *this;
}
/// Store a copy of @p __rhs as the contained object.
template<typename _ValueType>
any& operator=(_ValueType&& __rhs)
{
any(std::forward<_ValueType>(__rhs)).swap(*this);
return *this;
}
// modifiers
/// If not empty, destroy the contained object.
void clear() noexcept
{
if (!empty())
{
_M_manager(_Op_destroy, this, nullptr);
_M_manager = nullptr;
}
}
/// Exchange state with another object.
void swap(any& __rhs) noexcept
{
std::swap(_M_manager, __rhs._M_manager);
std::swap(_M_storage, __rhs._M_storage);
}
// observers
/// Reports whether there is a contained object or not.
bool empty() const noexcept { return _M_manager == nullptr; }
#ifdef __GXX_RTTI
/// The @c typeid of the contained object, or @c typeid(void) if empty.
const type_info& type() const noexcept
{
if (empty())
return typeid(void);
_Arg __arg;
_M_manager(_Op_get_type_info, this, &__arg);
return *__arg._M_typeinfo;
}
#endif
template<typename _Tp>
static constexpr bool __is_valid_cast()
{ return __or_<is_reference<_Tp>, is_copy_constructible<_Tp>>::value; }
private:
enum _Op { _Op_access, _Op_get_type_info, _Op_clone, _Op_destroy };
union _Arg
{
void* _M_obj;
const std::type_info* _M_typeinfo;
any* _M_any;
};
void (*_M_manager)(_Op, const any*, _Arg*);
_Storage _M_storage;
template<typename _Tp>
friend void* __any_caster(const any* __any)
{
#ifdef __GXX_RTTI
if (__any->type() != typeid(_Tp))
return nullptr;
#else
if (__any->_M_manager != &_Manager<decay_t<_Tp>>::_S_manage)
return nullptr;
#endif
_Arg __arg;
__any->_M_manager(_Op_access, __any, &__arg);
return __arg._M_obj;
}
// Manage in-place contained object.
template<typename _Tp>
struct _Manager_internal
{
static void
_S_manage(_Op __which, const any* __anyp, _Arg* __arg);
template<typename _Up>
static _Storage
_S_create(_Up&& __value)
{
_Storage __storage;
void* __addr = &__storage._M_buffer;
::new (__addr) _Tp(std::forward<_Up>(__value));
return __storage;
}
template<typename _Alloc, typename _Up>
static _Storage
_S_alloc(const _Alloc&, _Up&& __value)
{
return _S_create(std::forward<_Up>(__value));
}
};
// Manage external contained object.
template<typename _Tp>
struct _Manager_external
{
static void
_S_manage(_Op __which, const any* __anyp, _Arg* __arg);
template<typename _Up>
static _Storage
_S_create(_Up&& __value)
{
_Storage __storage;
__storage._M_ptr = new _Tp(std::forward<_Up>(__value));
return __storage;
}
};
#ifdef __GXX_RTTI
// Manage external contained object using an allocator
template<typename _Tp, typename _Alloc>
struct _Manager_alloc
{
static_assert(std::is_same<_Tp, typename _Alloc::value_type>::value,
"Allocator's value_type is correct");
// Type that holds contained object and allocator
struct _Data;
using _Traits = typename std::allocator_traits<_Alloc>::template
rebind_traits<_Data>;
static void
_S_manage(_Op __which, const any* __anyp, _Arg* __arg);
template<typename _Up>
static _Storage
_S_alloc(const _Alloc& __a, _Up&& __value);
};
#endif
};
/// Exchange the states of two @c any objects.
inline void swap(any& __x, any& __y) noexcept { __x.swap(__y); }
/**
* @brief Access the contained object.
*
* @tparam _ValueType A const-reference or CopyConstructible type.
* @param __any The object to access.
* @return The contained object.
* @throw bad_any_cast If <code>
* __any.type() != typeid(remove_reference_t<_ValueType>)
* </code>
*/
template<typename _ValueType>
inline _ValueType any_cast(const any& __any)
{
static_assert(any::__is_valid_cast<_ValueType>(),
"Template argument must be a reference or CopyConstructible type");
auto __p = any_cast<add_const_t<remove_reference_t<_ValueType>>>(&__any);
if (__p)
return *__p;
__throw_bad_any_cast();
}
/**
* @brief Access the contained object.
*
* @tparam _ValueType A reference or CopyConstructible type.
* @param __any The object to access.
* @return The contained object.
* @throw bad_any_cast If <code>
* __any.type() != typeid(remove_reference_t<_ValueType>)
* </code>
*/
template<typename _ValueType>
inline _ValueType any_cast(any& __any)
{
static_assert(any::__is_valid_cast<_ValueType>(),
"Template argument must be a reference or CopyConstructible type");
auto __p = any_cast<remove_reference_t<_ValueType>>(&__any);
if (__p)
return *__p;
__throw_bad_any_cast();
}
/**
* @brief Access the contained object.
*
* @tparam _ValueType A reference or CopyConstructible type.
* @param __any The object to access.
* @return The contained object.
* @throw bad_any_cast If <code>
* __any.type() != typeid(remove_reference_t<_ValueType>)
* </code>
*/
template<typename _ValueType>
inline _ValueType any_cast(any&& __any)
{
static_assert(any::__is_valid_cast<_ValueType>(),
"Template argument must be a reference or CopyConstructible type");
auto __p = any_cast<remove_reference_t<_ValueType>>(&__any);
if (__p)
return *__p;
__throw_bad_any_cast();
}
/**
* @brief Access the contained object.
*
* @tparam _ValueType The type of the contained object.
* @param __any A pointer to the object to access.
* @return The address of the contained object if <code>
* __any != nullptr && __any.type() == typeid(_ValueType)
* </code>, otherwise a null pointer.
*/
template<typename _ValueType>
inline const _ValueType* any_cast(const any* __any) noexcept
{
if (__any)
return static_cast<_ValueType*>(__any_caster<_ValueType>(__any));
return nullptr;
}
/**
* @brief Access the contained object.
*
* @tparam _ValueType The type of the contained object.
* @param __any A pointer to the object to access.
* @return The address of the contained object if <code>
* __any != nullptr && __any.type() == typeid(_ValueType)
* </code>, otherwise a null pointer.
*/
template<typename _ValueType>
inline _ValueType* any_cast(any* __any) noexcept
{
if (__any)
return static_cast<_ValueType*>(__any_caster<_ValueType>(__any));
return nullptr;
}
#ifdef __GXX_RTTI
template<typename _Tp, typename _Alloc>
struct any::_Manager_alloc<_Tp, _Alloc>::_Data
{
using _Traits = std::allocator_traits<_Alloc>;
std::tuple<_Alloc, __gnu_cxx::__aligned_buffer<_Tp>> _M_data;
_Alloc& _M_alloc() { return std::get<0>(_M_data); }
const _Alloc& _M_alloc() const { return std::get<0>(_M_data); }
_Tp* _M_obj() { return std::get<1>(_M_data)._M_ptr(); }
const _Tp* _M_obj() const { return std::get<1>(_M_data)._M_ptr(); }
template<typename _Up>
_Data(const _Alloc& __a, _Up&& __val) : _M_data(__a, nullptr)
{
this->_M_construct(std::__use_alloc<_Tp>(_M_alloc()),
std::forward<_Up>(__val));
}
~_Data() { _Traits::destroy(_M_alloc(), _M_obj()); }
template<typename _Up>
void
_M_construct(__uses_alloc0, _Up&& __val)
{
_Traits::construct(_M_alloc(), _M_obj(),
std::forward<_Up>(__val));
}
template<typename _Up>
void
_M_construct(__uses_alloc1<_Alloc> __a, _Up&& __val)
{
_Traits::construct(__a._M_a, _M_obj(),
std::allocator_arg, __a._M_a,
std::forward<_Up>(__val));
}
template<typename _Up>
void
_M_construct(__uses_alloc2<_Alloc> __a, _Up&& __val)
{
_Traits::construct(__a._M_a, _M_obj(),
std::forward<_Up>(__val), __a._M_a);
}
};
template<typename _Tp, typename _Alloc>
template<typename _Up>
any::_Storage
any::_Manager_alloc<_Tp, _Alloc>::
_S_alloc(const _Alloc& __a, _Up&& __value)
{
typename _Traits::allocator_type __a2(__a);
auto __ptr = _Traits::allocate(__a2, 1);
__try
{
any::_Storage __storage;
__storage._M_ptr = std::__addressof(*__ptr);
::new(__storage._M_ptr) _Data{__a, std::forward<_Up>(__value)};
return __storage;
}
__catch(...)
{
_Traits::deallocate(__a2, __ptr, 1);
__throw_exception_again;
}
}
#endif
template<typename _Tp>
void
any::_Manager_internal<_Tp>::
_S_manage(_Op __which, const any* __any, _Arg* __arg)
{
// The contained object is in _M_storage._M_buffer
auto __ptr = reinterpret_cast<const _Tp*>(&__any->_M_storage._M_buffer);
switch (__which)
{
case _Op_access:
__arg->_M_obj = const_cast<_Tp*>(__ptr);
break;
case _Op_get_type_info:
#ifdef __GXX_RTTI
__arg->_M_typeinfo = &typeid(_Tp);
#endif
break;
case _Op_clone:
::new(&__arg->_M_any->_M_storage._M_buffer) _Tp(*__ptr);
break;
case _Op_destroy:
__ptr->~_Tp();
break;
}
}
template<typename _Tp>
void
any::_Manager_external<_Tp>::
_S_manage(_Op __which, const any* __any, _Arg* __arg)
{
// The contained object is *_M_storage._M_ptr
auto __ptr = static_cast<const _Tp*>(__any->_M_storage._M_ptr);
switch (__which)
{
case _Op_access:
__arg->_M_obj = const_cast<_Tp*>(__ptr);
break;
case _Op_get_type_info:
#ifdef __GXX_RTTI
__arg->_M_typeinfo = &typeid(_Tp);
#endif
break;
case _Op_clone:
__arg->_M_any->_M_storage._M_ptr = new _Tp(*__ptr);
break;
case _Op_destroy:
delete __ptr;
break;
}
}
#ifdef __GXX_RTTI
template<typename _Tp, typename _Alloc>
void
any::_Manager_alloc<_Tp, _Alloc>::
_S_manage(_Op __which, const any* __any, _Arg* __arg)
{
// The contained object is at _M_storage._M_ptr->_M_obj()
auto __ptr = static_cast<const _Data*>(__any->_M_storage._M_ptr);
switch (__which)
{
case _Op_access:
__arg->_M_obj = const_cast<_Tp*>(__ptr->_M_obj());
break;
case _Op_get_type_info:
__arg->_M_typeinfo = &typeid(_Tp);
break;
case _Op_clone:
__arg->_M_any->_M_storage
= _S_alloc(__ptr->_M_alloc(), *__ptr->_M_obj());
break;
case _Op_destroy:
{
using _PtrTr = pointer_traits<typename _Traits::pointer>;
typename _Traits::allocator_type __a(__ptr->_M_alloc());
auto __alloc_ptr = _PtrTr::pointer_to(*const_cast<_Data*>(__ptr));
__ptr->~_Data();
_Traits::deallocate(__a, __alloc_ptr, 1);
}
break;
}
}
#endif
// @} group any
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace any_v1
} // namespace experimental
} // namespace std
#endif // C++14
#endif // _GLIBCXX_EXPERIMENTAL_ANY

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@ -47,6 +47,11 @@ namespace __gnu_cxx
std::aligned_storage<sizeof(_Tp), std::alignment_of<_Tp>::value>::type
_M_storage;
__aligned_buffer() = default;
// Can be used to avoid value-initialization
__aligned_buffer(std::nullptr_t) { }
void*
_M_addr() noexcept
{

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@ -0,0 +1,60 @@
// { dg-options "-std=gnu++14" }
// { dg-do run }
// Copyright (C) 2014 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/>.
#include <experimental/any>
#include <testsuite_hooks.h>
using std::experimental::any;
void test01()
{
any x;
any y;
y = x;
VERIFY( x.empty() );
VERIFY( y.empty() );
y = std::move(x);
VERIFY( x.empty() );
VERIFY( y.empty() );
}
void test02()
{
any x(1);
any y;
y = x;
VERIFY( !x.empty() );
VERIFY( !y.empty() );
x = std::move(y);
VERIFY( !x.empty() );
VERIFY( y.empty() );
x = y;
VERIFY( x.empty() );
VERIFY( y.empty() );
}
int main()
{
test01();
test02();
}

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@ -0,0 +1,51 @@
// { dg-options "-std=gnu++14" }
// { dg-do run }
// Copyright (C) 2014 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/>.
#include <experimental/any>
#include <testsuite_hooks.h>
using std::experimental::any;
using std::experimental::any_cast;
struct X
{
bool moved = false;
bool moved_from = false;
X() = default;
X(const X&) = default;
X(X&& x) : moved(true) { x.moved_from = true; }
};
void test01()
{
X x;
any a1;
a1 = x;
VERIFY(x.moved_from == false);
any a2;
a2 = std::move(x);
VERIFY(x.moved_from == true);
VERIFY(any_cast<X&>(a2).moved == true );
}
int main()
{
test01();
}

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@ -0,0 +1,58 @@
// { dg-options "-std=gnu++14" }
// { dg-do run }
// Copyright (C) 2014 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/>.
#include <experimental/any>
#include <testsuite_hooks.h>
using std::experimental::any;
void test01()
{
any x;
VERIFY( x.empty() );
any y(x);
VERIFY( x.empty() );
VERIFY( y.empty() );
any z(std::move(y));
VERIFY( y.empty() );
VERIFY( z.empty() );
}
void test02()
{
any x(1);
VERIFY( !x.empty() );
any y(x);
VERIFY( !x.empty() );
VERIFY( !y.empty() );
any z(std::move(y));
VERIFY( y.empty() );
VERIFY( !z.empty() );
}
int main()
{
test01();
test02();
}

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// { dg-options "-std=gnu++14" }
// { dg-do run }
// Copyright (C) 2014 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/>.
#include <experimental/any>
#include <testsuite_hooks.h>
using std::experimental::any;
using std::experimental::any_cast;
struct X
{
bool moved = false;
bool moved_from = false;
X() = default;
X(const X&) = default;
X(X&& x) : moved(true) { x.moved_from = true; }
};
void test01()
{
X x;
any a1(x);
VERIFY(x.moved_from == false);
any a2(std::move(x));
VERIFY(x.moved_from == true);
VERIFY(any_cast<X&>(a2).moved == true );
}
int main()
{
test01();
}

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// { dg-options "-std=gnu++14" }
// { dg-do run }
// Copyright (C) 2014 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/>.
#include <experimental/any>
#include <testsuite_allocator.h>
using std::experimental::any;
using __gnu_test::CustomPointerAlloc;
using __gnu_test::tracker_allocator;
using __gnu_test::tracker_allocator_counter;
struct NotSmall { char c[64]; };
bool test [[gnu::unused]] = true;
void test01()
{
CustomPointerAlloc<int> alloc;
any x(std::allocator_arg, alloc, 1);
VERIFY( !x.empty() );
any y(std::allocator_arg, alloc, std::move(x));
VERIFY( x.empty() );
VERIFY( !y.empty() );
}
void test02()
{
tracker_allocator<int> alloc;
any x(std::allocator_arg, alloc, 1);
auto allocated = tracker_allocator_counter::get_allocation_count();
VERIFY( allocated == 0 ); // no allocation for small object
any y(std::allocator_arg, alloc, std::move(x));
VERIFY( tracker_allocator_counter::get_allocation_count() == 0 );
y = {};
VERIFY( tracker_allocator_counter::get_deallocation_count() == 0 );
}
void test03()
{
tracker_allocator<int> alloc;
any x(std::allocator_arg, alloc, NotSmall{});
auto allocated = tracker_allocator_counter::get_allocation_count();
__builtin_printf("ALLOCATED %lu\n", (unsigned long)allocated);
VERIFY( allocated >= sizeof(NotSmall) );
any y(std::allocator_arg, alloc, std::move(x));
VERIFY( tracker_allocator_counter::get_allocation_count() == allocated );
y = {};
VERIFY( tracker_allocator_counter::get_deallocation_count() == allocated );
}
int main()
{
test01();
test02();
test03();
}

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// { dg-options "-std=gnu++14" }
// { dg-do run }
// Copyright (C) 2014 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/>.
#include <experimental/any>
#include <string>
#include <cstring>
#include <testsuite_hooks.h>
using std::experimental::any;
using std::experimental::any_cast;
void test01()
{
using std::string;
using std::strcmp;
// taken from example in N3804 proposal
any x(5); // x holds int
VERIFY(any_cast<int>(x) == 5); // cast to value
any_cast<int&>(x) = 10; // cast to reference
VERIFY(any_cast<int>(x) == 10);
x = "Meow"; // x holds const char*
VERIFY(strcmp(any_cast<const char*>(x), "Meow") == 0);
any_cast<const char*&>(x) = "Harry";
VERIFY(strcmp(any_cast<const char*>(x), "Harry") == 0);
x = string("Meow"); // x holds string
string s, s2("Jane");
s = move(any_cast<string&>(x)); // move from any
VERIFY(s == "Meow");
any_cast<string&>(x) = move(s2); // move to any
VERIFY(any_cast<const string&>(x) == "Jane");
string cat("Meow");
const any y(cat); // const y holds string
VERIFY(any_cast<const string&>(y) == cat);
}
void test02()
{
using std::experimental::bad_any_cast;
any x(1);
auto p = any_cast<double>(&x);
VERIFY(p == nullptr);
x = 1.0;
p = any_cast<double>(&x);
VERIFY(p != nullptr);
x = any();
p = any_cast<double>(&x);
VERIFY(p == nullptr);
try {
any_cast<double>(x);
VERIFY(false);
} catch (const bad_any_cast&) {
}
}
void test03()
{
using std::experimental::bad_any_cast;
any x(std::allocator_arg, std::allocator<double>{}, 1);
auto p = any_cast<double>(&x);
VERIFY(p == nullptr);
x = any(std::allocator_arg, std::allocator<int>{}, 1.0);
p = any_cast<double>(&x);
VERIFY(p != nullptr);
x = any(std::allocator_arg, std::allocator<char>{});
p = any_cast<double>(&x);
VERIFY(p == nullptr);
try {
any_cast<double>(x);
VERIFY(false);
} catch (const bad_any_cast&) {
}
}
int main()
{
test01();
test02();
test03();
}

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// { dg-options "-std=gnu++14" }
// { dg-do compile }
// Copyright (C) 2014 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/>.
#include <experimental/any>
void test01()
{
using std::experimental::any;
using std::experimental::any_cast;
const any y(1);
any_cast<int&>(y); // { dg-error "qualifiers" "" { target { *-*-* } } 381 }
}

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// { dg-options "-std=gnu++14 -fno-rtti" }
// { dg-do run }
// Copyright (C) 2014 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/>.
#include <experimental/any>
#include <string>
#include <cstring>
#include <testsuite_hooks.h>
using std::experimental::any;
using std::experimental::any_cast;
void test01()
{
using std::experimental::bad_any_cast;
any x(1);
auto p = any_cast<double>(&x);
VERIFY(p == nullptr);
x = 1.0;
p = any_cast<double>(&x);
VERIFY(p != nullptr);
x = any();
p = any_cast<double>(&x);
VERIFY(p == nullptr);
try {
any_cast<double>(x);
VERIFY(false);
} catch (const bad_any_cast&) {
}
}
int main()
{
test01();
}

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// { dg-options "-std=gnu++14" }
// { dg-do run }
// Copyright (C) 2014 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/>.
#include <experimental/any>
#include <testsuite_hooks.h>
using std::experimental::any;
void test01()
{
any x(1);
any y;
swap(x, y);
VERIFY( x.empty() );
VERIFY( !y.empty() );
}
int main()
{
test01();
}

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// { dg-options "-std=gnu++14" }
// { dg-do run }
// Copyright (C) 2014 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/>.
#include <experimental/any>
#include <testsuite_hooks.h>
using std::experimental::any;
void test01()
{
any x(1);
any y;
x.swap(y);
VERIFY( x.empty() );
VERIFY( !y.empty() );
x.swap(y);
VERIFY( !x.empty() );
VERIFY( y.empty() );
x.clear();
VERIFY( x.empty() );
}
int main()
{
test01();
}

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// { dg-options "-std=gnu++14" }
// { dg-do run }
// Copyright (C) 2014 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/>.
#include <experimental/any>
#include <testsuite_hooks.h>
using std::experimental::any;
void test01()
{
any x;
VERIFY( x.type() == typeid(void) );
x = 1;
VERIFY( x.type() == typeid(int) );
x = any();
VERIFY( x.type() == typeid(void) );
}
int main()
{
test01();
}