procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Implement std::any.

Browse source 
* include/Makefile.am: Add any and c++17_warning.h to exported headers.
	* include/Makefile.in: Likewise.
	* include/std/any: New.
	* testsuite/20_util/any/assign/1.cc: Likewise.
	* testsuite/20_util/any/assign/2.cc: Likewise.
	* testsuite/20_util/any/assign/self.cc: Likewise.
	* testsuite/20_util/any/cons/1.cc: Likewise.
	* testsuite/20_util/any/cons/2.cc: Likewise.
	* testsuite/20_util/any/cons/aligned.cc: Likewise.
	* testsuite/20_util/any/cons/nontrivial.cc: Likewise.
	* testsuite/20_util/any/misc/any_cast.cc: Likewise.
	* testsuite/20_util/any/misc/any_cast_neg.cc: Likewise.
	* testsuite/20_util/any/misc/any_cast_no_rtti.cc: Likewise.
	* testsuite/20_util/any/misc/swap.cc: Likewise.
	* testsuite/20_util/any/modifiers/1.cc: Likewise.
	* testsuite/20_util/any/observers/type.cc: Likewise.
	* testsuite/20_util/any/typedefs.cc: Likewise.

From-SVN: r238061
This commit is contained in:
Ville Voutilainen 2016-07-07 01:33:20 +03:00 • committed by Ville Voutilainen
parent 3042e70851
commit 52e8622199
18 changed files with 1335 additions and 0 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 @@
2016-07-07 Ville Voutilainen <ville.voutilainen@gmail.com>
Implement std::any.
* include/Makefile.am: Add any and c++17_warning.h to exported headers.
* include/Makefile.in: Likewise.
* include/std/any: New.
* testsuite/20_util/any/assign/1.cc: Likewise.
* testsuite/20_util/any/assign/2.cc: Likewise.
* testsuite/20_util/any/assign/self.cc: Likewise.
* testsuite/20_util/any/cons/1.cc: Likewise.
* testsuite/20_util/any/cons/2.cc: Likewise.
* testsuite/20_util/any/cons/aligned.cc: Likewise.
* testsuite/20_util/any/cons/nontrivial.cc: Likewise.
* testsuite/20_util/any/misc/any_cast.cc: Likewise.
* testsuite/20_util/any/misc/any_cast_neg.cc: Likewise.
* testsuite/20_util/any/misc/any_cast_no_rtti.cc: Likewise.
* testsuite/20_util/any/misc/swap.cc: Likewise.
* testsuite/20_util/any/modifiers/1.cc: Likewise.
* testsuite/20_util/any/observers/type.cc: Likewise.
* testsuite/20_util/any/typedefs.cc: Likewise.
2016-07-06 Ville Voutilainen <ville.voutilainen@gmail.com>
Add a new header for diagnosing the use of C++17 facilities

2
libstdc++-v3/include/Makefile.am
View file

@ -27,6 +27,7 @@ std_srcdir = ${glibcxx_srcdir}/include/std
std_builddir = .
std_headers = \
${std_srcdir}/algorithm \
${std_srcdir}/any \
${std_srcdir}/array \
${std_srcdir}/atomic \
${std_srcdir}/bitset \
@ -92,6 +93,7 @@ bits_headers = \
${bits_srcdir}/boost_concept_check.h \
${bits_srcdir}/c++0x_warning.h \
${bits_srcdir}/c++14_warning.h \
${bits_srcdir}/c++17_warning.h \
${bits_srcdir}/char_traits.h \
${bits_srcdir}/codecvt.h \
${bits_srcdir}/concept_check.h \

2
libstdc++-v3/include/Makefile.in
View file

@ -317,6 +317,7 @@ std_srcdir = ${glibcxx_srcdir}/include/std
std_builddir = .
std_headers = \
${std_srcdir}/algorithm \
${std_srcdir}/any \
${std_srcdir}/array \
${std_srcdir}/atomic \
${std_srcdir}/bitset \
@ -382,6 +383,7 @@ bits_headers = \
${bits_srcdir}/boost_concept_check.h \
${bits_srcdir}/c++0x_warning.h \
${bits_srcdir}/c++14_warning.h \
${bits_srcdir}/c++17_warning.h \
${bits_srcdir}/char_traits.h \
${bits_srcdir}/codecvt.h \
${bits_srcdir}/concept_check.h \

523
libstdc++-v3/include/std/any Normal file
View file

@ -0,0 +1,523 @@
// <any> -*- C++ -*-
// Copyright (C) 2014-2016 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 include/any
* This is a Standard C++ Library header.
*/
#ifndef _GLIBCXX_ANY
#define _GLIBCXX_ANY 1
#pragma GCC system_header
#if __cplusplus <= 201402L
# include <bits/c++17_warning.h>
#else
#include <typeinfo>
#include <new>
#include <utility>
#include <type_traits>
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
/**
* @addtogroup utilities
* @{
*/
/**
* @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()
{
#if __cpp_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
{
// This constructor intentionally doesn't initialize anything.
_Storage() = default;
// Prevent trivial copies of this type, buffer might hold a non-POD.
_Storage(const _Storage&) = delete;
_Storage& operator=(const _Storage&) = delete;
void* _M_ptr;
aligned_storage<sizeof(_M_ptr), alignof(void*)>::type _M_buffer;
};
template<typename _Tp, typename _Safe = is_nothrow_move_constructible<_Tp>,
bool _Fits = (sizeof(_Tp) <= sizeof(_Storage))
&& (alignof(_Tp) <= alignof(_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>>;
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)
{
if (__other.empty())
_M_manager = nullptr;
else
{
_Arg __arg;
__arg._M_any = this;
__other._M_manager(_Op_clone, &__other, &__arg);
}
}
/**
* @brief Move constructor, transfer the state from @p __other
*
* @post @c __other.empty() (this postcondition is a GNU extension)
*/
any(any&& __other) noexcept
{
if (__other.empty())
_M_manager = nullptr;
else
{
_Arg __arg;
__arg._M_any = this;
__other._M_manager(_Op_xfer, &__other, &__arg);
}
}
/// Construct with a copy of @p __value as the contained object.
template <typename _ValueType, typename _Tp = _Decay<_ValueType>,
typename _Mgr = _Manager<_Tp>,
typename enable_if<is_constructible<_Tp, _ValueType&&>::value,
bool>::type = true>
any(_ValueType&& __value)
: _M_manager(&_Mgr::_S_manage)
{
_Mgr::_S_create(_M_storage, std::forward<_ValueType>(__value));
static_assert(is_copy_constructible<_Tp>::value,
"The contained object must be CopyConstructible");
}
/// Construct with a copy of @p __value as the contained object.
template <typename _ValueType, typename _Tp = _Decay<_ValueType>,
typename _Mgr = _Manager<_Tp>,
typename enable_if<!is_constructible<_Tp, _ValueType&&>::value,
bool>::type = false>
any(_ValueType&& __value)
: _M_manager(&_Mgr::_S_manage)
{
_Mgr::_S_create(_M_storage, __value);
static_assert(is_copy_constructible<_Tp>::value,
"The contained object must be CopyConstructible");
}
/// Destructor, calls @c clear()
~any() { clear(); }
// assignments
/// Copy the state of another object.
any& operator=(const any& __rhs)
{
if (__rhs.empty())
clear();
else if (this != &__rhs)
{
if (!empty())
_M_manager(_Op_destroy, this, nullptr);
_Arg __arg;
__arg._M_any = this;
__rhs._M_manager(_Op_clone, &__rhs, &__arg);
}
return *this;
}
/**
* @brief Move assignment operator
*
* @post @c __rhs.empty() (not guaranteed for other implementations)
*/
any& operator=(any&& __rhs) noexcept
{
if (__rhs.empty())
clear();
else if (this != &__rhs)
{
if (!empty())
_M_manager(_Op_destroy, this, nullptr);
_Arg __arg;
__arg._M_any = this;
__rhs._M_manager(_Op_xfer, &__rhs, &__arg);
}
return *this;
}
/// Store a copy of @p __rhs as the contained object.
template<typename _ValueType>
enable_if_t<!is_same<any, decay_t<_ValueType>>::value, any&>
operator=(_ValueType&& __rhs)
{
*this = any(std::forward<_ValueType>(__rhs));
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
{
if (empty() && __rhs.empty())
return;
if (!empty() && !__rhs.empty())
{
if (this == &__rhs)
return;
any __tmp;
_Arg __arg;
__arg._M_any = &__tmp;
__rhs._M_manager(_Op_xfer, &__rhs, &__arg);
__arg._M_any = &__rhs;
_M_manager(_Op_xfer, this, &__arg);
__arg._M_any = this;
__tmp._M_manager(_Op_xfer, &__tmp, &__arg);
}
else
{
any* __empty = empty() ? this : &__rhs;
any* __full = empty() ? &__rhs : this;
_Arg __arg;
__arg._M_any = __empty;
__full->_M_manager(_Op_xfer, __full, &__arg);
}
}
// observers
/// Reports whether there is a contained object or not.
bool empty() const noexcept { return _M_manager == nullptr; }
#if __cpp_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, _Op_xfer
};
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);
// 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 void
_S_create(_Storage& __storage, _Up&& __value)
{
void* __addr = &__storage._M_buffer;
::new (__addr) _Tp(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 void
_S_create(_Storage& __storage, _Up&& __value)
{
__storage._M_ptr = new _Tp(std::forward<_Up>(__value));
}
};
};
/// 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();
}
template<typename _ValueType,
typename enable_if<!is_move_constructible<_ValueType>::value
|| is_lvalue_reference<_ValueType>::value,
bool>::type = true>
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();
}
template<typename _ValueType,
typename enable_if<is_move_constructible<_ValueType>::value
&& !is_lvalue_reference<_ValueType>::value,
bool>::type = false>
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 std::move(*__p);
__throw_bad_any_cast();
}
// @}
template<typename _Tp>
void* __any_caster(const any* __any)
{
if (__any->_M_manager != &any::_Manager<decay_t<_Tp>>::_S_manage)
return nullptr;
any::_Arg __arg;
__any->_M_manager(any::_Op_access, __any, &__arg);
return __arg._M_obj;
}
/**
* @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;
}
template<typename _ValueType>
inline _ValueType* any_cast(any* __any) noexcept
{
if (__any)
return static_cast<_ValueType*>(__any_caster<_ValueType>(__any));
return nullptr;
}
// @}
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:
#if __cpp_rtti
__arg->_M_typeinfo = &typeid(_Tp);
#endif
break;
case _Op_clone:
::new(&__arg->_M_any->_M_storage._M_buffer) _Tp(*__ptr);
__arg->_M_any->_M_manager = __any->_M_manager;
break;
case _Op_destroy:
__ptr->~_Tp();
break;
case _Op_xfer:
::new(&__arg->_M_any->_M_storage._M_buffer) _Tp(*__ptr);
__ptr->~_Tp();
__arg->_M_any->_M_manager = __any->_M_manager;
const_cast<any*>(__any)->_M_manager = nullptr;
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:
#if __cpp_rtti
__arg->_M_typeinfo = &typeid(_Tp);
#endif
break;
case _Op_clone:
__arg->_M_any->_M_storage._M_ptr = new _Tp(*__ptr);
__arg->_M_any->_M_manager = __any->_M_manager;
break;
case _Op_destroy:
delete __ptr;
break;
case _Op_xfer:
__arg->_M_any->_M_storage._M_ptr = __any->_M_storage._M_ptr;
__arg->_M_any->_M_manager = __any->_M_manager;
const_cast<any*>(__any)->_M_manager = nullptr;
break;
}
}
/// @}
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std
#endif // C++14
#endif // _GLIBCXX_ANY

60
libstdc++-v3/testsuite/20_util/any/assign/1.cc Normal file
View file

@ -0,0 +1,60 @@
// { dg-options "-std=gnu++17" }
// { dg-do run }
// Copyright (C) 2014-2016 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 <any>
#include <testsuite_hooks.h>
using std::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();
}

51
libstdc++-v3/testsuite/20_util/any/assign/2.cc Normal file
View file

@ -0,0 +1,51 @@
// { dg-options "-std=gnu++17" }
// { dg-do run }
// Copyright (C) 2014-2016 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 <any>
#include <testsuite_hooks.h>
using std::any;
using std::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();
}

93
libstdc++-v3/testsuite/20_util/any/assign/self.cc Normal file
View file

@ -0,0 +1,93 @@
// Copyright (C) 2015-2016 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 "-std=gnu++17" }
#include <any>
#include <set>
#include <testsuite_hooks.h>
std::set<const void*> live_objects;
struct A {
A() { live_objects.insert(this); }
~A() { live_objects.erase(this); }
A(const A& a) { VERIFY(live_objects.count(&a)); live_objects.insert(this); }
};
void
test01()
{
using std::any;
any a;
a = a;
VERIFY( a.empty() );
a = A{};
a = a;
VERIFY( !a.empty() );
a.clear();
VERIFY( live_objects.empty() );
}
void
test02()
{
using std::any;
struct X {
any a;
};
X x;
std::swap(x, x); // results in "self-move-assignment" of X::a
VERIFY( x.a.empty() );
x.a = A{};
std::swap(x, x); // results in "self-move-assignment" of X::a
VERIFY( !x.a.empty() );
x.a.clear();
VERIFY( live_objects.empty() );
}
void
test03()
{
using std::any;
any a;
a.swap(a);
VERIFY( a.empty() );
a = A{};
a.swap(a);
VERIFY( !a.empty() );
a.clear();
VERIFY( live_objects.empty() );
}
int
main()
{
test01();
test02();
test03();
}

58
libstdc++-v3/testsuite/20_util/any/cons/1.cc Normal file
View file

@ -0,0 +1,58 @@
// { dg-options "-std=gnu++17" }
// { dg-do run }
// Copyright (C) 2014-2016 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 <any>
#include <testsuite_hooks.h>
using std::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();
}

49
libstdc++-v3/testsuite/20_util/any/cons/2.cc Normal file
View file

@ -0,0 +1,49 @@
// { dg-options "-std=gnu++17" }
// { dg-do run }
// Copyright (C) 2014-2016 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 <any>
#include <testsuite_hooks.h>
using std::any;
using std::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();
}

52
libstdc++-v3/testsuite/20_util/any/cons/aligned.cc Normal file
View file

@ -0,0 +1,52 @@
// Copyright (C) 2015-2016 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 "-std=gnu++17" }
#include <any>
#include <cstdint>
#include <testsuite_hooks.h>
// Alignment requiremnts of this type prevent it being stored in 'any'
struct alignas(2 * alignof(void*)) X { };
bool
stored_internally(void* obj, const std::any& a)
{
std::uintptr_t a_addr = reinterpret_cast<std::uintptr_t>(&a);
std::uintptr_t a_end = a_addr + sizeof(a);
std::uintptr_t obj_addr = reinterpret_cast<std::uintptr_t>(obj);
return (a_addr <= obj_addr) && (obj_addr < a_end);
}
void
test01()
{
std::any a = X{};
X& x = std::any_cast<X&>(a);
VERIFY( !stored_internally(&x, a) );
a = 'X';
char& c = std::any_cast<char&>(a);
VERIFY( stored_internally(&c, a) );
}
int
main()
{
test01();
}

75
libstdc++-v3/testsuite/20_util/any/cons/nontrivial.cc Normal file
View file

@ -0,0 +1,75 @@
// Copyright (C) 2015-2016 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 "-std=gnu++17" }
#include <any>
#include <testsuite_hooks.h>
struct LocationAware
{
LocationAware() { }
~LocationAware() { VERIFY(self == this); }
LocationAware(const LocationAware&) { }
LocationAware& operator=(const LocationAware&) { return *this; }
LocationAware(LocationAware&&) noexcept { }
LocationAware& operator=(LocationAware&&) noexcept { return *this; }
void* const self = this;
};
static_assert(std::is_nothrow_move_constructible<LocationAware>::value, "");
static_assert(!std::is_trivially_copyable<LocationAware>::value, "");
using std::any;
void
test01()
{
LocationAware l;
any a = l;
}
void
test02()
{
LocationAware l;
any a = l;
any b = a;
{
any tmp = std::move(a);
a = std::move(b);
b = std::move(tmp);
}
}
void
test03()
{
LocationAware l;
any a = l;
any b = a;
swap(a, b);
}
int
main()
{
test01();
test02();
test03();
}

114
libstdc++-v3/testsuite/20_util/any/misc/any_cast.cc Normal file
View file

@ -0,0 +1,114 @@
// { dg-options "-std=gnu++17" }
// { dg-do run }
// Copyright (C) 2014-2016 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 <any>
#include <string>
#include <cstring>
#include <testsuite_hooks.h>
using std::any;
using std::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::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&) {
}
}
static int move_count = 0;
void test03()
{
struct MoveEnabled
{
MoveEnabled(MoveEnabled&&)
{
++move_count;
}
MoveEnabled() = default;
MoveEnabled(const MoveEnabled&) = default;
};
MoveEnabled m;
MoveEnabled m2 = any_cast<MoveEnabled>(any(m));
VERIFY(move_count == 1);
MoveEnabled&& m3 = any_cast<MoveEnabled&&>(any(m));
VERIFY(move_count == 1);
struct MoveDeleted
{
MoveDeleted(MoveDeleted&&) = delete;
MoveDeleted() = default;
MoveDeleted(const MoveDeleted&) = default;
};
MoveDeleted md;
MoveDeleted&& md2 = any_cast<MoveDeleted>(any(std::move(md)));
MoveDeleted&& md3 = any_cast<MoveDeleted&&>(any(std::move(md)));
}
int main()
{
test01();
test02();
test03();
}

30
libstdc++-v3/testsuite/20_util/any/misc/any_cast_neg.cc Normal file
View file

@ -0,0 +1,30 @@
// { dg-options "-std=gnu++17" }
// { dg-do compile }
// Copyright (C) 2014-2016 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 <any>
void test01()
{
using std::any;
using std::any_cast;
const any y(1);
any_cast<int&>(y); // { dg-error "qualifiers" "" { target { *-*-* } } 357 }
}

54
libstdc++-v3/testsuite/20_util/any/misc/any_cast_no_rtti.cc Normal file
View file

@ -0,0 +1,54 @@
// { dg-options "-std=gnu++17 -fno-rtti" }
// { dg-do run }
// Copyright (C) 2014-2016 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 <any>
#include <string>
#include <cstring>
#include <testsuite_hooks.h>
using std::any;
using std::any_cast;
void test01()
{
using std::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();
}

38
libstdc++-v3/testsuite/20_util/any/misc/swap.cc Normal file
View file

@ -0,0 +1,38 @@
// { dg-options "-std=gnu++17" }
// { dg-do run }
// Copyright (C) 2014-2016 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 <any>
#include <testsuite_hooks.h>
using std::any;
void test01()
{
any x(1);
any y;
swap(x, y);
VERIFY( x.empty() );
VERIFY( !y.empty() );
}
int main()
{
test01();
}

44
libstdc++-v3/testsuite/20_util/any/modifiers/1.cc Normal file
View file

@ -0,0 +1,44 @@
// { dg-options "-std=gnu++17" }
// { dg-do run }
// Copyright (C) 2014-2016 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 <any>
#include <testsuite_hooks.h>
using std::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();
}

39
libstdc++-v3/testsuite/20_util/any/observers/type.cc Normal file
View file

@ -0,0 +1,39 @@
// { dg-options "-std=gnu++17" }
// { dg-do run }
// Copyright (C) 2014-2016 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 <any>
#include <testsuite_hooks.h>
using std::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();
}

30
libstdc++-v3/testsuite/20_util/any/typedefs.cc Normal file
View file

@ -0,0 +1,30 @@
// { dg-options "-std=gnu++17" }
// { dg-do compile }
// Copyright (C) 2014-2016 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 moved_to of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include <any>
#include <type_traits>
#include <typeinfo>
using check1_t = std::any;
using check2_t = std::bad_any_cast;
static_assert(std::is_base_of<std::bad_cast, check2_t>::value,
"bad_any_cast must derive from bad_cast");