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The C and C++ Include Header Files

cat -n /usr/include/c++/15/debug/assertions.h

     1	// Debugging support implementation -*- C++ -*-
     2	
     3	// Copyright (C) 2003-2025 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	#include <bits/c++config.h>
    33	
    34	#ifndef _GLIBCXX_DEBUG
    35	// Verify that [_First, _Last) forms a non-empty iterator range.
    36	# define __glibcxx_requires_non_empty_range(_First,_Last)	\
    37	  __glibcxx_assert(_First != _Last)
    38	# define __glibcxx_requires_subscript(_N)	\
    39	  __glibcxx_assert(_N < this->size())
    40	// Verify that the container is nonempty
    41	# define __glibcxx_requires_nonempty()		\
    42	  __glibcxx_assert(!this->empty())
    43	#else // Use the more verbose Debug Mode checks.
    44	# define __glibcxx_requires_non_empty_range(_First,_Last) \
    45	  __glibcxx_check_non_empty_range(_First,_Last)
    46	# define __glibcxx_requires_nonempty() \
    47	  __glibcxx_check_nonempty()
    48	# define __glibcxx_requires_subscript(_N) \
    49	  __glibcxx_check_subscript(_N)
    50	#endif
    51	
    52	#if defined _GLIBCXX_DEBUG && _GLIBCXX_HOSTED
    53	
    54	# define _GLIBCXX_DEBUG_ASSERT(_Condition) __glibcxx_assert(_Condition)
    55	
    56	# ifdef _GLIBCXX_DEBUG_PEDANTIC
    57	#  define _GLIBCXX_DEBUG_PEDASSERT(_Condition) _GLIBCXX_DEBUG_ASSERT(_Condition)
    58	# else
    59	#  define _GLIBCXX_DEBUG_PEDASSERT(_Condition)
    60	# endif
    61	
    62	# define _GLIBCXX_DEBUG_ONLY(_Statement) _Statement
    63	
    64	#else
    65	# define _GLIBCXX_DEBUG_ASSERT(_Condition)
    66	# define _GLIBCXX_DEBUG_PEDASSERT(_Condition)
    67	# define _GLIBCXX_DEBUG_ONLY(_Statement)
    68	#endif
    69	
    70	#endif // _GLIBCXX_DEBUG_ASSERTIONS