modernc.org/cc@v1.0.1/v2/headers/linux_amd64/usr/include/assert.h (about)

     1  /* Copyright (C) 1991-2015 Free Software Foundation, Inc.
     2     This file is part of the GNU C Library.
     3  
     4     The GNU C Library is free software; you can redistribute it and/or
     5     modify it under the terms of the GNU Lesser General Public
     6     License as published by the Free Software Foundation; either
     7     version 2.1 of the License, or (at your option) any later version.
     8  
     9     The GNU C Library is distributed in the hope that it will be useful,
    10     but WITHOUT ANY WARRANTY; without even the implied warranty of
    11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    12     Lesser General Public License for more details.
    13  
    14     You should have received a copy of the GNU Lesser General Public
    15     License along with the GNU C Library; if not, see
    16     <http://www.gnu.org/licenses/>.  */
    17  
    18  /*
    19   *	ISO C99 Standard: 7.2 Diagnostics	<assert.h>
    20   */
    21  
    22  #ifdef	_ASSERT_H
    23  
    24  # undef	_ASSERT_H
    25  # undef	assert
    26  # undef __ASSERT_VOID_CAST
    27  
    28  # ifdef	__USE_GNU
    29  #  undef assert_perror
    30  # endif
    31  
    32  #endif				/* assert.h      */
    33  
    34  #define	_ASSERT_H	1
    35  #include <features.h>
    36  
    37  #if defined __cplusplus && __GNUC_PREREQ (2,95)
    38  # define __ASSERT_VOID_CAST static_cast<void>
    39  #else
    40  # define __ASSERT_VOID_CAST (void)
    41  #endif
    42  
    43  /* void assert (int expression);
    44  
    45     If NDEBUG is defined, do nothing.
    46     If not, and EXPRESSION is zero, print an error message and abort.  */
    47  
    48  #ifdef	NDEBUG
    49  
    50  # define assert(expr)		(__ASSERT_VOID_CAST (0))
    51  
    52  /* void assert_perror (int errnum);
    53  
    54     If NDEBUG is defined, do nothing.  If not, and ERRNUM is not zero, print an
    55     error message with the error text for ERRNUM and abort.
    56     (This is a GNU extension.) */
    57  
    58  # ifdef	__USE_GNU
    59  #  define assert_perror(errnum)	(__ASSERT_VOID_CAST (0))
    60  # endif
    61  
    62  #else				/* Not NDEBUG.  */
    63  
    64  __BEGIN_DECLS
    65  /* This prints an "Assertion failed" message and aborts.  */
    66  extern void __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function)
    67  __THROW __attribute__ ((__noreturn__));
    68  
    69  /* Likewise, but prints the error text for ERRNUM.  */
    70  extern void __assert_perror_fail(int __errnum, const char *__file, unsigned int __line, const char *__function)
    71  __THROW __attribute__ ((__noreturn__));
    72  
    73  /* The following is not at all used here but needed for standard
    74     compliance.  */
    75  extern void __assert(const char *__assertion, const char *__file, int __line)
    76  __THROW __attribute__ ((__noreturn__));
    77  
    78  __END_DECLS
    79  # define assert(expr)							\
    80    ((expr)								\
    81     ? __ASSERT_VOID_CAST (0)						\
    82     : __assert_fail (__STRING(expr), __FILE__, __LINE__, __ASSERT_FUNCTION))
    83  # ifdef	__USE_GNU
    84  #  define assert_perror(errnum)						\
    85    (!(errnum)								\
    86     ? __ASSERT_VOID_CAST (0)						\
    87     : __assert_perror_fail ((errnum), __FILE__, __LINE__, __ASSERT_FUNCTION))
    88  # endif
    89  /* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'
    90     which contains the name of the function currently being defined.
    91     This is broken in G++ before version 2.6.
    92     C9x has a similar variable called __func__, but prefer the GCC one since
    93     it demangles C++ function names.  */
    94  # if defined __cplusplus ? __GNUC_PREREQ (2, 6) : __GNUC_PREREQ (2, 4)
    95  #   define __ASSERT_FUNCTION	__PRETTY_FUNCTION__
    96  # else
    97  #  if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
    98  #   define __ASSERT_FUNCTION	__func__
    99  #  else
   100  #   define __ASSERT_FUNCTION	((const char *) 0)
   101  #  endif
   102  # endif
   103  #endif				/* NDEBUG.  */
   104  #if defined __USE_ISOC11 && !defined __cplusplus
   105  # undef static_assert
   106  # define static_assert _Static_assert
   107  #endif