libstdc++
assertions.h
Go to the documentation of this file.
00001 // Debugging support implementation -*- C++ -*-
00002 
00003 // Copyright (C) 2003-2017 Free Software Foundation, Inc.
00004 //
00005 // This file is part of the GNU ISO C++ Library.  This library is free
00006 // software; you can redistribute it and/or modify it under the
00007 // terms of the GNU General Public License as published by the
00008 // Free Software Foundation; either version 3, or (at your option)
00009 // any later version.
00010 
00011 // This library is distributed in the hope that it will be useful,
00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014 // GNU General Public License for more details.
00015 
00016 // Under Section 7 of GPL version 3, you are granted additional
00017 // permissions described in the GCC Runtime Library Exception, version
00018 // 3.1, as published by the Free Software Foundation.
00019 
00020 // You should have received a copy of the GNU General Public License and
00021 // a copy of the GCC Runtime Library Exception along with this program;
00022 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
00023 // <http://www.gnu.org/licenses/>.
00024 
00025 /** @file debug/assertions.h
00026  *  This file is a GNU debug extension to the Standard C++ Library.
00027  */
00028 
00029 #ifndef _GLIBCXX_DEBUG_ASSERTIONS_H
00030 #define _GLIBCXX_DEBUG_ASSERTIONS_H 1
00031 
00032 #ifndef _GLIBCXX_DEBUG
00033 
00034 # define _GLIBCXX_DEBUG_ASSERT(_Condition)
00035 # define _GLIBCXX_DEBUG_PEDASSERT(_Condition)
00036 # define _GLIBCXX_DEBUG_ONLY(_Statement)
00037 
00038 #endif
00039 
00040 #ifndef _GLIBCXX_ASSERTIONS
00041 # define __glibcxx_requires_non_empty_range(_First,_Last)
00042 # define __glibcxx_requires_nonempty()
00043 # define __glibcxx_requires_subscript(_N)
00044 #else
00045 
00046 // Verify that [_First, _Last) forms a non-empty iterator range.
00047 # define __glibcxx_requires_non_empty_range(_First,_Last)       \
00048   __glibcxx_assert(__builtin_expect(_First != _Last, true))
00049 # define __glibcxx_requires_subscript(_N)       \
00050   __glibcxx_assert(__builtin_expect(_N < this->size(), true))
00051 // Verify that the container is nonempty
00052 # define __glibcxx_requires_nonempty()          \
00053   __glibcxx_assert(__builtin_expect(!this->empty(), true))
00054 #endif
00055 
00056 #ifdef _GLIBCXX_DEBUG
00057 # define _GLIBCXX_DEBUG_ASSERT(_Condition) __glibcxx_assert(_Condition)
00058 
00059 # ifdef _GLIBCXX_DEBUG_PEDANTIC
00060 #  define _GLIBCXX_DEBUG_PEDASSERT(_Condition) _GLIBCXX_DEBUG_ASSERT(_Condition)
00061 # else
00062 #  define _GLIBCXX_DEBUG_PEDASSERT(_Condition)
00063 # endif
00064 
00065 # define _GLIBCXX_DEBUG_ONLY(_Statement) _Statement
00066 #endif
00067 
00068 #endif // _GLIBCXX_DEBUG_ASSERTIONS