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The C and C++ Include Header Files

/usr/include/x86_64-linux-gnu/bits/stdio2-decl.h


$ cat -n /usr/include/x86_64-linux-gnu/bits/stdio2-decl.h

     1	/* Checking macros for stdio functions. Declarations only.
     2	   Copyright (C) 2004-2024 Free Software Foundation, Inc.
     3	   This file is part of the GNU C Library.
     4	
     5	   The GNU C Library is free software; you can redistribute it and/or
     6	   modify it under the terms of the GNU Lesser General Public
     7	   License as published by the Free Software Foundation; either
     8	   version 2.1 of the License, or (at your option) any later version.
     9	
    10	   The GNU C Library is distributed in the hope that it will be useful,
    11	   but WITHOUT ANY WARRANTY; without even the implied warranty of
    12	   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13	   Lesser General Public License for more details.
    14	
    15	   You should have received a copy of the GNU Lesser General Public
    16	   License along with the GNU C Library; if not, see
    17	   <https://www.gnu.org/licenses/>.  */
    18	
    19	#ifndef _BITS_STDIO2_DEC_H
    20	#define _BITS_STDIO2_DEC_H 1
    21	
    22	#ifndef _STDIO_H
    23	# error "Never include <bits/stdio2-decl.h> directly; use <stdio.h> instead."
    24	#endif
    25	
    26	extern int __sprintf_chk (char *__restrict __s, int __flag, size_t __slen,
    27				  const char *__restrict __format, ...) __THROW
    28	    __attr_access ((__write_only__, 1, 3));
    29	extern int __vsprintf_chk (char *__restrict __s, int __flag, size_t __slen,
    30				   const char *__restrict __format,
    31				   __gnuc_va_list __ap) __THROW
    32	    __attr_access ((__write_only__, 1, 3));
    33	
    34	#if defined __USE_ISOC99 || defined __USE_UNIX98
    35	
    36	extern int __snprintf_chk (char *__restrict __s, size_t __n, int __flag,
    37				   size_t __slen, const char *__restrict __format,
    38				   ...) __THROW
    39	    __attr_access ((__write_only__, 1, 2));
    40	extern int __vsnprintf_chk (char *__restrict __s, size_t __n, int __flag,
    41				    size_t __slen, const char *__restrict __format,
    42				    __gnuc_va_list __ap) __THROW
    43	    __attr_access ((__write_only__, 1, 2));
    44	
    45	#endif
    46	
    47	#if __USE_FORTIFY_LEVEL > 1
    48	
    49	extern int __fprintf_chk (FILE *__restrict __stream, int __flag,
    50				  const char *__restrict __format, ...)
    51	    __nonnull ((1));
    52	extern int __printf_chk (int __flag, const char *__restrict __format, ...);
    53	extern int __vfprintf_chk (FILE *__restrict __stream, int __flag,
    54				   const char *__restrict __format,
    55				   __gnuc_va_list __ap) __nonnull ((1));
    56	extern int __vprintf_chk (int __flag, const char *__restrict __format,
    57				  __gnuc_va_list __ap);
    58	
    59	# ifdef __USE_XOPEN2K8
    60	extern int __dprintf_chk (int __fd, int __flag, const char *__restrict __fmt,
    61				  ...) __attribute__ ((__format__ (__printf__, 3, 4)));
    62	extern int __vdprintf_chk (int __fd, int __flag,
    63				   const char *__restrict __fmt, __gnuc_va_list __arg)
    64	     __attribute__ ((__format__ (__printf__, 3, 0)));
    65	# endif
    66	
    67	# ifdef __USE_GNU
    68	
    69	extern int __asprintf_chk (char **__restrict __ptr, int __flag,
    70				   const char *__restrict __fmt, ...)
    71	     __THROW __attribute__ ((__format__ (__printf__, 3, 4))) __wur;
    72	extern int __vasprintf_chk (char **__restrict __ptr, int __flag,
    73				    const char *__restrict __fmt, __gnuc_va_list __arg)
    74	     __THROW __attribute__ ((__format__ (__printf__, 3, 0))) __wur;
    75	extern int __obstack_printf_chk (struct obstack *__restrict __obstack,
    76					 int __flag, const char *__restrict __format,
    77					 ...)
    78	     __THROW __attribute__ ((__format__ (__printf__, 3, 4)));
    79	extern int __obstack_vprintf_chk (struct obstack *__restrict __obstack,
    80					  int __flag,
    81					  const char *__restrict __format,
    82					  __gnuc_va_list __args)
    83	     __THROW __attribute__ ((__format__ (__printf__, 3, 0)));
    84	
    85	# endif
    86	#endif
    87	
    88	#if __GLIBC_USE (DEPRECATED_GETS)
    89	extern char *__REDIRECT (__gets_warn, (char *__str), gets)
    90	     __wur __warnattr ("please use fgets or getline instead, gets can't "
    91			       "specify buffer size");
    92	
    93	extern char *__gets_chk (char *__str, size_t) __wur;
    94	#endif
    95	
    96	extern char *__REDIRECT (__fgets_alias,
    97				 (char *__restrict __s, int __n,
    98				  FILE *__restrict __stream), fgets)
    99	    __wur __attr_access ((__write_only__, 1, 2));
   100	extern char *__REDIRECT (__fgets_chk_warn,
   101				 (char *__restrict __s, size_t __size, int __n,
   102				  FILE *__restrict __stream), __fgets_chk)
   103	     __wur __warnattr ("fgets called with bigger size than length "
   104			       "of destination buffer");
   105	
   106	extern char *__fgets_chk (char *__restrict __s, size_t __size, int __n,
   107				  FILE *__restrict __stream)
   108	    __wur __attr_access ((__write_only__, 1, 3)) __nonnull ((4));
   109	
   110	extern size_t __REDIRECT (__fread_alias,
   111				  (void *__restrict __ptr, size_t __size,
   112				   size_t __n, FILE *__restrict __stream),
   113				  fread) __wur;
   114	extern size_t __REDIRECT (__fread_chk_warn,
   115				  (void *__restrict __ptr, size_t __ptrlen,
   116				   size_t __size, size_t __n,
   117				   FILE *__restrict __stream),
   118				  __fread_chk)
   119	     __wur __warnattr ("fread called with bigger size * nmemb than length "
   120			       "of destination buffer");
   121	
   122	extern size_t __fread_chk (void *__restrict __ptr, size_t __ptrlen,
   123				   size_t __size, size_t __n,
   124				   FILE *__restrict __stream) __wur __nonnull ((5));
   125	
   126	#ifdef __USE_GNU
   127	extern char *__REDIRECT_FORTIFY (__fgets_unlocked_alias,
   128				 (char *__restrict __s, int __n,
   129				  FILE *__restrict __stream), fgets_unlocked)
   130	    __wur __attr_access ((__write_only__, 1, 2));
   131	extern char *__REDIRECT (__fgets_unlocked_chk_warn,
   132				 (char *__restrict __s, size_t __size, int __n,
   133				  FILE *__restrict __stream), __fgets_unlocked_chk)
   134	     __wur __warnattr ("fgets_unlocked called with bigger size than length "
   135			       "of destination buffer");
   136	
   137	
   138	extern char *__fgets_unlocked_chk (char *__restrict __s, size_t __size,
   139					   int __n, FILE *__restrict __stream)
   140	    __wur __attr_access ((__write_only__, 1, 3)) __nonnull ((4));
   141	#endif
   142	
   143	#ifdef __USE_MISC
   144	# undef fread_unlocked
   145	extern size_t __REDIRECT (__fread_unlocked_alias,
   146				  (void *__restrict __ptr, size_t __size,
   147				   size_t __n, FILE *__restrict __stream),
   148				  fread_unlocked) __wur;
   149	extern size_t __REDIRECT (__fread_unlocked_chk_warn,
   150				  (void *__restrict __ptr, size_t __ptrlen,
   151				   size_t __size, size_t __n,
   152				   FILE *__restrict __stream),
   153				  __fread_unlocked_chk)
   154	     __wur __warnattr ("fread_unlocked called with bigger size * nmemb than "
   155			       "length of destination buffer");
   156	
   157	extern size_t __fread_unlocked_chk (void *__restrict __ptr, size_t __ptrlen,
   158					    size_t __size, size_t __n,
   159					    FILE *__restrict __stream)
   160	    __wur __nonnull ((5));
   161	#endif
   162	
   163	#endif /* bits/stdio2-decl.h.  */