// nonstandard construct and destroy functions -*- C++ -*-
-// Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+// 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 2, or (at your option)
+// 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,
// 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 COPYING. If not, write to the Free
-// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-// USA.
+// 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.
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
+// 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/>.
/*
*
* You should not attempt to use it directly.
*/
-#ifndef _CPP_BITS_STL_CONSTRUCT_H
-#define _CPP_BITS_STL_CONSTRUCT_H 1
+#ifndef _STL_CONSTRUCT_H
+#define _STL_CONSTRUCT_H 1
-#include <bits/type_traits.h>
#include <new>
-namespace std
-{
+_GLIBCXX_BEGIN_NAMESPACE(std)
+
/**
- * @if maint
* Constructs an object in existing memory by invoking an allocated
* object's constructor with an initializer.
- * @endif
*/
- template <class _T1, class _T2>
+ template<typename _T1, typename _T2>
inline void
_Construct(_T1* __p, const _T2& __value)
- { new (static_cast<void*>(__p)) _T1(__value); }
-
- /**
- * @if maint
- * Constructs an object in existing memory by invoking an allocated
- * object's default constructor (no initializers).
- * @endif
- */
- template <class _T1>
- inline void
- _Construct(_T1* __p)
- { new (static_cast<void*>(__p)) _T1(); }
-
- /**
- * @if maint
- * Destroy a range of objects with nontrivial destructors.
- *
- * This is a helper function used only by _Destroy().
- * @endif
- */
- template <class _ForwardIterator>
- inline void
- __destroy_aux(_ForwardIterator __first, _ForwardIterator __last, __false_type)
- { for ( ; __first != __last; ++__first) _Destroy(&*__first); }
-
- /**
- * @if maint
- * Destroy a range of objects with trivial destructors. Since the destructors
- * are trivial, there's nothing to do and hopefully this function will be
- * entirely optimized away.
- *
- * This is a helper function used only by _Destroy().
- * @endif
- */
- template <class _ForwardIterator>
- inline void
- __destroy_aux(_ForwardIterator, _ForwardIterator, __true_type)
- { }
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 402. wrong new expression in [some_]allocator::construct
+ ::new(static_cast<void*>(__p)) _T1(__value);
+ }
/**
- * @if maint
* Destroy the object pointed to by a pointer type.
- * @endif
*/
- template <class _Tp>
+ template<typename _Tp>
inline void
_Destroy(_Tp* __pointer)
{ __pointer->~_Tp(); }
-
+
+ template<bool>
+ struct _Destroy_aux
+ {
+ template<typename _ForwardIterator>
+ static void
+ __destroy(_ForwardIterator __first, _ForwardIterator __last)
+ {
+ for (; __first != __last; ++__first)
+ std::_Destroy(&*__first);
+ }
+ };
+
+ template<>
+ struct _Destroy_aux<true>
+ {
+ template<typename _ForwardIterator>
+ static void
+ __destroy(_ForwardIterator, _ForwardIterator) { }
+ };
+
/**
- * @if maint
* Destroy a range of objects. If the value_type of the object has
* a trivial destructor, the compiler should optimize all of this
* away, otherwise the objects' destructors must be invoked.
- * @endif
*/
- template <class _ForwardIterator>
+ template<typename _ForwardIterator>
inline void
_Destroy(_ForwardIterator __first, _ForwardIterator __last)
{
typedef typename iterator_traits<_ForwardIterator>::value_type
_Value_type;
- typedef typename __type_traits<_Value_type>::has_trivial_destructor
- _Has_trivial_destructor;
+ std::_Destroy_aux<__has_trivial_destructor(_Value_type)>::
+ __destroy(__first, __last);
+ }
+
+ /**
+ * Destroy a range of objects using the supplied allocator. For
+ * nondefault allocators we do not optimize away invocation of
+ * destroy() even if _Tp has a trivial destructor.
+ */
- __destroy_aux(__first, __last, _Has_trivial_destructor());
+ template <typename _Tp> class allocator;
+
+ template<typename _ForwardIterator, typename _Allocator>
+ void
+ _Destroy(_ForwardIterator __first, _ForwardIterator __last,
+ _Allocator& __alloc)
+ {
+ for (; __first != __last; ++__first)
+ __alloc.destroy(&*__first);
}
-} // namespace std
-#endif /* _CPP_BITS_STL_CONSTRUCT_H */
+ template<typename _ForwardIterator, typename _Tp>
+ inline void
+ _Destroy(_ForwardIterator __first, _ForwardIterator __last,
+ allocator<_Tp>&)
+ {
+ _Destroy(__first, __last);
+ }
+
+_GLIBCXX_END_NAMESPACE
+
+#endif /* _STL_CONSTRUCT_H */
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