File Coverage

/usr/include/c++/5/new
Criterion Covered Total %
statement 2 3 66.6
branch n/a
condition n/a
subroutine n/a
pod n/a
total 2 3 66.6


line stmt bran cond sub pod time code
1             // The -*- C++ -*- dynamic memory management header.
2              
3             // Copyright (C) 1994-2015 Free Software Foundation, Inc.
4              
5             // This file is part of GCC.
6             //
7             // GCC is free software; you can redistribute it and/or modify
8             // it under the terms of the GNU General Public License as published by
9             // the Free Software Foundation; either version 3, or (at your option)
10             // any later version.
11             //
12             // GCC is distributed in the hope that it will be useful,
13             // but WITHOUT ANY WARRANTY; without even the implied warranty of
14             // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15             // GNU General Public License for more details.
16             //
17             // Under Section 7 of GPL version 3, you are granted additional
18             // permissions described in the GCC Runtime Library Exception, version
19             // 3.1, as published by the Free Software Foundation.
20              
21             // You should have received a copy of the GNU General Public License and
22             // a copy of the GCC Runtime Library Exception along with this program;
23             // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24             // .
25              
26             /** @file new
27             * This is a Standard C++ Library header.
28             *
29             * The header @c new defines several functions to manage dynamic memory and
30             * handling memory allocation errors; see
31             * http://gcc.gnu.org/onlinedocs/libstdc++/18_support/howto.html#4 for more.
32             */
33              
34             #ifndef _NEW
35             #define _NEW
36              
37             #pragma GCC system_header
38              
39             #include
40             #include
41              
42             #pragma GCC visibility push(default)
43              
44             extern "C++" {
45              
46             namespace std
47             {
48             /**
49             * @brief Exception possibly thrown by @c new.
50             * @ingroup exceptions
51             *
52             * @c bad_alloc (or classes derived from it) is used to report allocation
53             * errors from the throwing forms of @c new. */
54             class bad_alloc : public exception
55             {
56             public:
57             bad_alloc() throw() { }
58              
59             // This declaration is not useless:
60             // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
61             virtual ~bad_alloc() throw();
62              
63             // See comment in eh_exception.cc.
64             virtual const char* what() const throw();
65             };
66              
67             #if __cplusplus >= 201103L
68             class bad_array_new_length : public bad_alloc
69             {
70             public:
71             bad_array_new_length() throw() { };
72              
73             // This declaration is not useless:
74             // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
75             virtual ~bad_array_new_length() throw();
76              
77             // See comment in eh_exception.cc.
78             virtual const char* what() const throw();
79             };
80             #endif
81              
82             struct nothrow_t { };
83              
84             extern const nothrow_t nothrow;
85              
86             /** If you write your own error handler to be called by @c new, it must
87             * be of this type. */
88             typedef void (*new_handler)();
89              
90             /// Takes a replacement handler as the argument, returns the
91             /// previous handler.
92             new_handler set_new_handler(new_handler) throw();
93              
94             #if __cplusplus >= 201103L
95             /// Return the current new handler.
96             new_handler get_new_handler() noexcept;
97             #endif
98             } // namespace std
99              
100             //@{
101             /** These are replaceable signatures:
102             * - normal single new and delete (no arguments, throw @c bad_alloc on error)
103             * - normal array new and delete (same)
104             * - @c nothrow single new and delete (take a @c nothrow argument, return
105             * @c NULL on error)
106             * - @c nothrow array new and delete (same)
107             *
108             * Placement new and delete signatures (take a memory address argument,
109             * does nothing) may not be replaced by a user's program.
110             */
111             void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)
112             __attribute__((__externally_visible__));
113             void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)
114             __attribute__((__externally_visible__));
115             void operator delete(void*) _GLIBCXX_USE_NOEXCEPT
116             __attribute__((__externally_visible__));
117             void operator delete[](void*) _GLIBCXX_USE_NOEXCEPT
118             __attribute__((__externally_visible__));
119             void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
120             __attribute__((__externally_visible__));
121             void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
122             __attribute__((__externally_visible__));
123             void operator delete(void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
124             __attribute__((__externally_visible__));
125             void operator delete[](void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
126             __attribute__((__externally_visible__));
127              
128             // Default placement versions of operator new.
129 20           inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
130 20           { return __p; }
131             inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
132             { return __p; }
133              
134             // Default placement versions of operator delete.
135 0           inline void operator delete (void*, void*) _GLIBCXX_USE_NOEXCEPT { }
136             inline void operator delete[](void*, void*) _GLIBCXX_USE_NOEXCEPT { }
137             //@}
138             } // extern "C++"
139              
140             #pragma GCC visibility pop
141              
142             #endif