1// Debugging support implementation -*- C++ -*-
2
3// Copyright (C) 2003-2018 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// <http://www.gnu.org/licenses/>.
24
25/** @file debug/assertions.h
26 * This file is a GNU debug extension to the Standard C++ Library.
27 */
28
29#ifndef _GLIBCXX_DEBUG_ASSERTIONS_H
30#define _GLIBCXX_DEBUG_ASSERTIONS_H 1
31
32#ifndef _GLIBCXX_DEBUG
33
34# define _GLIBCXX_DEBUG_ASSERT(_Condition)
35# define _GLIBCXX_DEBUG_PEDASSERT(_Condition)
36# define _GLIBCXX_DEBUG_ONLY(_Statement)
37
38#endif
39
40#ifndef _GLIBCXX_ASSERTIONS
41# define __glibcxx_requires_non_empty_range(_First,_Last)
42# define __glibcxx_requires_nonempty()
43# define __glibcxx_requires_subscript(_N)
44#else
45
46// Verify that [_First, _Last) forms a non-empty iterator range.
47# define __glibcxx_requires_non_empty_range(_First,_Last) \
48 __glibcxx_assert(__builtin_expect(_First != _Last, true))
49# define __glibcxx_requires_subscript(_N) \
50 __glibcxx_assert(__builtin_expect(_N < this->size(), true))
51// Verify that the container is nonempty
52# define __glibcxx_requires_nonempty() \
53 __glibcxx_assert(__builtin_expect(!this->empty(), true))
54#endif
55
56#ifdef _GLIBCXX_DEBUG
57# define _GLIBCXX_DEBUG_ASSERT(_Condition) __glibcxx_assert(_Condition)
58
59# ifdef _GLIBCXX_DEBUG_PEDANTIC
60# define _GLIBCXX_DEBUG_PEDASSERT(_Condition) _GLIBCXX_DEBUG_ASSERT(_Condition)
61# else
62# define _GLIBCXX_DEBUG_PEDASSERT(_Condition)
63# endif
64
65# define _GLIBCXX_DEBUG_ONLY(_Statement) _Statement
66#endif
67
68#endif // _GLIBCXX_DEBUG_ASSERTIONS
69