File Coverage

/usr/include/c++/5/bits/stl_construct.h

Criterion	Covered	Total	%
statement	15	15	100.0
branch	53	240	22.0
condition			n/a
subroutine			n/a
pod			n/a
total	68	255	26.6

line	stmt	bran	code
1			// nonstandard construct and destroy functions -- C++ --
2
3			// Copyright (C) 2001-2015 Free Software Foundation, Inc.
4			//
5			// This file is part of the GNU ISO C++ Library. This library is free
6			// software; you can redistribute it and/or modify it under the
7			// terms of the GNU General Public License as published by the
8			// Free Software Foundation; either version 3, or (at your option)
9			// any later version.
10
11			// This library is distributed in the hope that it will be useful,
12			// but WITHOUT ANY WARRANTY; without even the implied warranty of
13			// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			// GNU General Public License for more details.
15
16			// Under Section 7 of GPL version 3, you are granted additional
17			// permissions described in the GCC Runtime Library Exception, version
18			// 3.1, as published by the Free Software Foundation.
19
20			// You should have received a copy of the GNU General Public License and
21			// a copy of the GCC Runtime Library Exception along with this program;
22			// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23			// .
24
25			/*
26			*
27			* Copyright (c) 1994
28			* Hewlett-Packard Company
29			*
30			* Permission to use, copy, modify, distribute and sell this software
31			* and its documentation for any purpose is hereby granted without fee,
32			* provided that the above copyright notice appear in all copies and
33			* that both that copyright notice and this permission notice appear
34			* in supporting documentation. Hewlett-Packard Company makes no
35			* representations about the suitability of this software for any
36			* purpose. It is provided "as is" without express or implied warranty.
37			*
38			*
39			* Copyright (c) 1996,1997
40			* Silicon Graphics Computer Systems, Inc.
41			*
42			* Permission to use, copy, modify, distribute and sell this software
43			* and its documentation for any purpose is hereby granted without fee,
44			* provided that the above copyright notice appear in all copies and
45			* that both that copyright notice and this permission notice appear
46			* in supporting documentation. Silicon Graphics makes no
47			* representations about the suitability of this software for any
48			* purpose. It is provided "as is" without express or implied warranty.
49			*/
50
51			/** @file bits/stl_construct.h
52			* This is an internal header file, included by other library headers.
53			* Do not attempt to use it directly. @headername{memory}
54			*/
55
56			#ifndef _STL_CONSTRUCT_H
57			#define _STL_CONSTRUCT_H 1
58
59			#include
60			#include
61			#include
62
63			namespace std _GLIBCXX_VISIBILITY(default)
64			{
65			_GLIBCXX_BEGIN_NAMESPACE_VERSION
66
67			/**
68			* Constructs an object in existing memory by invoking an allocated
69			* object's constructor with an initializer.
70			*/
71			#if __cplusplus >= 201103L
72			template
73			inline void
74	4469		_Construct(_T1* __p, _Args&&... __args)
75	4469	0	{ ::new(static_cast(__p)) _T1(std::forward<_Args>(__args)...); }
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76			#else
77			template
78			inline void
79			_Construct(_T1* __p, const _T2& __value)
80			{
81			// _GLIBCXX_RESOLVE_LIB_DEFECTS
82			// 402. wrong new expression in [some_]allocator::construct
83			::new(static_cast(__p)) _T1(__value);
84			}
85			#endif
86
87			/**
88			* Destroy the object pointed to by a pointer type.
89			*/
90			template
91			inline void
92	4555		_Destroy(_Tp* __pointer)
93	4555		{ __pointer->~_Tp(); }
94
95			template
96			struct _Destroy_aux
97			{
98			template
99			static void
100	3393		__destroy(_ForwardIterator __first, _ForwardIterator __last)
101			{
102	7948	0	for (; __first != __last; ++__first)
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103	4555		std::_Destroy(std::__addressof(*__first));
104	3393		}
105			};
106
107			template<>
108			struct _Destroy_aux
109			{
110			template
111			static void
112	66		__destroy(_ForwardIterator, _ForwardIterator) { }
113			};
114
115			/**
116			* Destroy a range of objects. If the value_type of the object has
117			* a trivial destructor, the compiler should optimize all of this
118			* away, otherwise the objects' destructors must be invoked.
119			*/
120			template
121			inline void
122	3459		_Destroy(_ForwardIterator __first, _ForwardIterator __last)
123			{
124			typedef typename iterator_traits<_ForwardIterator>::value_type
125			_Value_type;
126	3459		std::_Destroy_aux<__has_trivial_destructor(_Value_type)>::
127			__destroy(__first, __last);
128	3459		}
129
130			/**
131			* Destroy a range of objects using the supplied allocator. For
132			* nondefault allocators we do not optimize away invocation of
133			* destroy() even if _Tp has a trivial destructor.
134			*/
135
136			template
137			void
138			_Destroy(_ForwardIterator __first, _ForwardIterator __last,
139			_Allocator& __alloc)
140			{
141			typedef __gnu_cxx::__alloc_traits<_Allocator> __traits;
142			for (; __first != __last; ++__first)
143			__traits::destroy(__alloc, std::__addressof(*__first));
144			}
145
146			template
147			inline void
148	3459		_Destroy(_ForwardIterator __first, _ForwardIterator __last,
149			allocator<_Tp>&)
150			{
151	3459		_Destroy(__first, __last);
152	3459		}
153
154			_GLIBCXX_END_NAMESPACE_VERSION
155			} // namespace std
156
157			#endif /* _STL_CONSTRUCT_H */
158