mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 06:20:06 +00:00
42cc619dfb
WG14 decided to use the name C23 as the informal name of the next revision of the C standard (notwithstanding the publication date in 2024). Update references to C2X in glibc to use the C23 name. This is intended to update everything *except* where it involves renaming files (the changes involving renaming tests are intended to be done separately). In the case of the _ISOC2X_SOURCE feature test macro - the only user-visible interface involved - support for that macro is kept for backwards compatibility, while adding _ISOC23_SOURCE. Tested for x86_64.
358 lines
13 KiB
C
358 lines
13 KiB
C
#ifndef _STDIO_H
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# if !defined _ISOMAC && defined _IO_MTSAFE_IO
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# include <stdio-lock.h>
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# endif
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/* Workaround PR90731 with GCC 9 when using ldbl redirects in C++. */
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# include <bits/floatn.h>
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# if defined __cplusplus && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
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# if __GNUC_PREREQ (9, 0) && !__GNUC_PREREQ (9, 3)
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# pragma GCC system_header
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# endif
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# endif
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# include <libio/stdio.h>
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# ifndef _ISOMAC
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# define _LIBC_STDIO_H 1
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# include <libio/libio.h>
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/* Now define the internal interfaces. */
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/* Some libc_hidden_ldbl_proto's do not map to a unique symbol when
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redirecting ldouble to _Float128 variants. We can therefore safely
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directly alias them to their internal name. */
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# if __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1 && IS_IN (libc)
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# define stdio_hidden_ldbl_proto(p, f) \
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extern __typeof (p ## f) p ## f __asm (__ASMNAME ("___ieee128_" #f));
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# elif __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
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# define stdio_hidden_ldbl_proto(p,f) __LDBL_REDIR1_DECL (p ## f, p ## f ## ieee128)
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# else
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# define stdio_hidden_ldbl_proto(p,f) libc_hidden_proto (p ## f)
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# endif
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/* Set the error indicator on FP. */
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static inline void
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fseterr_unlocked (FILE *fp)
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{
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fp->_flags |= _IO_ERR_SEEN;
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}
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extern int __fcloseall (void) attribute_hidden;
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extern int __snprintf (char *__restrict __s, size_t __maxlen,
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const char *__restrict __format, ...)
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__attribute__ ((__format__ (__printf__, 3, 4)));
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stdio_hidden_ldbl_proto (__, snprintf)
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extern int __vfscanf (FILE *__restrict __s,
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const char *__restrict __format,
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__gnuc_va_list __arg)
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__attribute__ ((__format__ (__scanf__, 2, 0)));
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libc_hidden_proto (__vfscanf)
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extern int __vscanf (const char *__restrict __format,
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__gnuc_va_list __arg)
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__attribute__ ((__format__ (__scanf__, 1, 0)));
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extern __ssize_t __getline (char **__lineptr, size_t *__n,
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FILE *__stream) attribute_hidden;
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extern int __vsscanf (const char *__restrict __s,
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const char *__restrict __format,
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__gnuc_va_list __arg)
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__attribute__ ((__format__ (__scanf__, 2, 0)));
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extern int __sprintf_chk (char *, int, size_t, const char *, ...) __THROW;
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extern int __snprintf_chk (char *, size_t, int, size_t, const char *, ...)
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__THROW;
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extern int __vsprintf_chk (char *, int, size_t, const char *,
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__gnuc_va_list) __THROW;
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extern int __vsnprintf_chk (char *, size_t, int, size_t, const char *,
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__gnuc_va_list) __THROW;
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extern int __printf_chk (int, const char *, ...);
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extern int __fprintf_chk (FILE *, int, const char *, ...);
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extern int __vprintf_chk (int, const char *, __gnuc_va_list);
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extern int __vfprintf_chk (FILE *, int, const char *, __gnuc_va_list);
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extern char *__fgets_unlocked_chk (char *buf, size_t size, int n, FILE *fp);
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extern char *__fgets_chk (char *buf, size_t size, int n, FILE *fp);
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extern int __asprintf_chk (char **, int, const char *, ...) __THROW;
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extern int __vasprintf_chk (char **, int, const char *, __gnuc_va_list) __THROW;
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extern int __dprintf_chk (int, int, const char *, ...);
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extern int __vdprintf_chk (int, int, const char *, __gnuc_va_list);
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extern int __obstack_printf_chk (struct obstack *, int, const char *, ...)
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__THROW;
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extern int __obstack_vprintf_chk (struct obstack *, int, const char *,
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__gnuc_va_list) __THROW;
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extern int __isoc99_fscanf (FILE *__restrict __stream,
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const char *__restrict __format, ...) __wur;
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extern int __isoc99_scanf (const char *__restrict __format, ...) __wur;
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extern int __isoc99_sscanf (const char *__restrict __s,
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const char *__restrict __format, ...) __THROW;
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extern int __isoc99_vfscanf (FILE *__restrict __s,
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const char *__restrict __format,
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__gnuc_va_list __arg) __wur;
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extern int __isoc99_vscanf (const char *__restrict __format,
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__gnuc_va_list __arg) __wur;
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extern int __isoc99_vsscanf (const char *__restrict __s,
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const char *__restrict __format,
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__gnuc_va_list __arg) __THROW;
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extern int __isoc23_fscanf (FILE *__restrict __stream,
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const char *__restrict __format, ...) __wur;
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extern int __isoc23_scanf (const char *__restrict __format, ...) __wur;
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extern int __isoc23_sscanf (const char *__restrict __s,
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const char *__restrict __format, ...) __THROW;
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extern int __isoc23_vfscanf (FILE *__restrict __s,
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const char *__restrict __format,
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__gnuc_va_list __arg) __wur;
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extern int __isoc23_vscanf (const char *__restrict __format,
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__gnuc_va_list __arg) __wur;
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extern int __isoc23_vsscanf (const char *__restrict __s,
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const char *__restrict __format,
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__gnuc_va_list __arg) __THROW;
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libc_hidden_proto (__isoc99_sscanf)
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libc_hidden_proto (__isoc99_vsscanf)
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libc_hidden_proto (__isoc99_vfscanf)
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libc_hidden_proto (__isoc23_sscanf)
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libc_hidden_proto (__isoc23_vsscanf)
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libc_hidden_proto (__isoc23_vfscanf)
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/* Internal uses of sscanf should call the C23-compliant version.
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Unfortunately, symbol redirection is not transitive, so the
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__REDIRECT in the public header does not link up with the above
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libc_hidden_proto. Bridge the gap with a macro. */
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# if !__GLIBC_USE (DEPRECATED_SCANF)
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# undef sscanf
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# define sscanf __isoc23_sscanf
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# endif
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# if __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1 && IS_IN (libc)
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/* These are implemented as redirects to other public API.
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Therefore, the usual redirection fails to avoid PLT. */
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extern __typeof (__isoc99_sscanf) ___ieee128_isoc99_sscanf __THROW;
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extern __typeof (__isoc99_vsscanf) ___ieee128_isoc99_vsscanf __THROW;
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extern __typeof (__isoc99_vfscanf) ___ieee128_isoc99_vfscanf __THROW;
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extern __typeof (__isoc23_sscanf) ___ieee128_isoc23_sscanf __THROW;
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extern __typeof (__isoc23_vsscanf) ___ieee128_isoc23_vsscanf __THROW;
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extern __typeof (__isoc23_vfscanf) ___ieee128_isoc23_vfscanf __THROW;
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libc_hidden_proto (___ieee128_isoc99_sscanf)
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libc_hidden_proto (___ieee128_isoc99_vsscanf)
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libc_hidden_proto (___ieee128_isoc99_vfscanf)
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libc_hidden_proto (___ieee128_isoc23_sscanf)
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libc_hidden_proto (___ieee128_isoc23_vsscanf)
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libc_hidden_proto (___ieee128_isoc23_vfscanf)
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#define __isoc99_sscanf ___ieee128_isoc99_sscanf
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#define __isoc99_vsscanf ___ieee128_isoc99_vsscanf
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#define __isoc99_vfscanf ___ieee128_isoc99_vfscanf
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#define __isoc23_sscanf ___ieee128_isoc23_sscanf
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#define __isoc23_vsscanf ___ieee128_isoc23_vsscanf
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#define __isoc23_vfscanf ___ieee128_isoc23_vfscanf
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# endif
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/* Prototypes for compatibility functions. */
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extern FILE *__new_tmpfile (void);
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extern FILE *__old_tmpfile (void);
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# define __need_size_t
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# include <stddef.h>
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# include <bits/types/wint_t.h>
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/* Generate a unique file name (and possibly open it). */
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extern int __path_search (char *__tmpl, size_t __tmpl_len,
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const char *__dir, const char *__pfx,
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int __try_tempdir) attribute_hidden;
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extern int __gen_tempname (char *__tmpl, int __suffixlen, int __flags,
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int __kind) attribute_hidden;
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/* The __kind argument to __gen_tempname may be one of: */
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# define __GT_FILE 0 /* create a file */
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# define __GT_DIR 1 /* create a directory */
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# define __GT_NOCREATE 2 /* just find a name not currently in use */
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/* Print out MESSAGE (which should end with a newline) on the error output
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and abort. */
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extern void __libc_fatal (const char *__message)
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__attribute__ ((__noreturn__));
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extern void __fortify_fail (const char *msg) __attribute__ ((__noreturn__));
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libc_hidden_proto (__fortify_fail)
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/* The maximum number of varargs allowed in a __libc_message format string */
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#define LIBC_MESSAGE_MAX_ARGS 4
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_Noreturn void __libc_message_impl (const char *__fnt, ...) attribute_hidden
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__attribute__ ((__format__ (__printf__, 1, 2)));
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#define __libc_message0(fmt) \
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__libc_message_impl (fmt)
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#define __libc_message1(fmt, a1) \
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__libc_message_impl (fmt, a1)
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#define __libc_message2(fmt, a1, a2) \
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__libc_message_impl (fmt, a1, a2)
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#define __libc_message3(fmt, a1, a2, a3) \
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__libc_message_impl (fmt, a1, a2, a3)
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#define __libc_message4(fmt, a1, a2, a3, a4) \
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__libc_message_impl (fmt, a1, a2, a3, a4)
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#define __libc_message_concat_x(a,b) a##b
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#define __libc_message_concat(a,b) __libc_message_concat_x (a, b)
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#define __libc_message_nargs_x(a0,a1,a2,a3,a4,a5,a6,...) a6
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#define __libc_message_nargs(b, ...) \
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__libc_message_nargs_x (__VA_ARGS__,6,5,4,3,2,1,0,)
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#define __libc_message_disp(b, ...) \
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__libc_message_concat (b, __libc_message_nargs (__VA_ARGS__))(__VA_ARGS__)
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#define __libc_message(...) \
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__libc_message_disp (__libc_message, __VA_ARGS__)
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/* Acquire ownership of STREAM. */
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extern void __flockfile (FILE *__stream) attribute_hidden;
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/* Relinquish the ownership granted for STREAM. */
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extern void __funlockfile (FILE *__stream) attribute_hidden;
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/* Try to acquire ownership of STREAM but do not block if it is not
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possible. */
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extern int __ftrylockfile (FILE *__stream);
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extern int __getc_unlocked (FILE *__fp) attribute_hidden;
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extern wint_t __getwc_unlocked (FILE *__fp);
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extern int __fxprintf (FILE *__fp, const char *__fmt, ...)
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__attribute__ ((__format__ (__printf__, 2, 3))) attribute_hidden;
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extern int __fxprintf_nocancel (FILE *__fp, const char *__fmt, ...)
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__attribute__ ((__format__ (__printf__, 2, 3))) attribute_hidden;
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int __vfxprintf (FILE *__fp, const char *__fmt, __gnuc_va_list,
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unsigned int)
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attribute_hidden;
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extern const char *const _sys_errlist_internal[] attribute_hidden;
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extern const size_t _sys_errlist_internal_len attribute_hidden;
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extern const char *__get_errlist (int) attribute_hidden;
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extern const char *__get_errname (int) attribute_hidden;
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libc_hidden_ldbl_proto (__asprintf)
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# if IS_IN (libc)
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extern FILE *_IO_new_fopen (const char*, const char*);
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# define fopen(fname, mode) _IO_new_fopen (fname, mode)
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extern FILE *_IO_new_fdopen (int, const char*);
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# define fdopen(fd, mode) _IO_new_fdopen (fd, mode)
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extern int _IO_new_fclose (FILE*);
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# define fclose(fp) _IO_new_fclose (fp)
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extern int _IO_fputs (const char*, FILE*);
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libc_hidden_proto (_IO_fputs)
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/* The compiler may optimize calls to fprintf into calls to fputs.
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Use libc_hidden_proto to ensure that those calls, not redirected by
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the fputs macro, also do not go through the PLT. */
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libc_hidden_proto (fputs)
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# define fputs(str, fp) _IO_fputs (str, fp)
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extern int _IO_new_fsetpos (FILE *, const __fpos_t *);
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# define fsetpos(fp, posp) _IO_new_fsetpos (fp, posp)
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extern int _IO_new_fgetpos (FILE *, __fpos_t *);
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# define fgetpos(fp, posp) _IO_new_fgetpos (fp, posp)
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# endif
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extern __typeof (dprintf) __dprintf
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__attribute__ ((__format__ (__printf__, 2, 3)));
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stdio_hidden_ldbl_proto (__, dprintf)
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libc_hidden_ldbl_proto (dprintf)
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libc_hidden_ldbl_proto (fprintf)
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libc_hidden_ldbl_proto (vfprintf)
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libc_hidden_ldbl_proto (sprintf)
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libc_hidden_proto (ungetc)
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libc_hidden_proto (__getdelim)
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libc_hidden_proto (fwrite)
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libc_hidden_proto (perror)
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libc_hidden_proto (remove)
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libc_hidden_proto (rewind)
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libc_hidden_proto (fileno)
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extern __typeof (fileno) __fileno;
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libc_hidden_proto (__fileno)
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libc_hidden_proto (fwrite)
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libc_hidden_proto (fseek)
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extern __typeof (ftello) __ftello;
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libc_hidden_proto (__ftello)
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extern __typeof (fseeko64) __fseeko64;
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libc_hidden_proto (__fseeko64)
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extern __typeof (ftello64) __ftello64;
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libc_hidden_proto (__ftello64)
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libc_hidden_proto (fflush)
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libc_hidden_proto (fflush_unlocked)
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extern __typeof (fflush_unlocked) __fflush_unlocked;
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libc_hidden_proto (__fflush_unlocked)
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extern __typeof (fread_unlocked) __fread_unlocked;
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libc_hidden_proto (__fread_unlocked)
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libc_hidden_proto (fwrite_unlocked)
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libc_hidden_proto (fgets_unlocked)
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extern __typeof (fgets_unlocked) __fgets_unlocked;
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libc_hidden_proto (__fgets_unlocked)
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libc_hidden_proto (fputs_unlocked)
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extern __typeof (fputs_unlocked) __fputs_unlocked;
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libc_hidden_proto (__fputs_unlocked)
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libc_hidden_proto (feof_unlocked)
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extern __typeof (feof_unlocked) __feof_unlocked attribute_hidden;
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libc_hidden_proto (ferror_unlocked)
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extern __typeof (ferror_unlocked) __ferror_unlocked attribute_hidden;
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libc_hidden_proto (getc_unlocked)
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libc_hidden_proto (fputc_unlocked)
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libc_hidden_proto (putc_unlocked)
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extern __typeof (putc_unlocked) __putc_unlocked attribute_hidden;
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libc_hidden_proto (fmemopen)
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/* The prototype needs repeating instead of using __typeof to use
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__THROW in C++ tests. */
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extern FILE *__open_memstream (char **, size_t *) __THROW __wur;
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libc_hidden_proto (__open_memstream)
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libc_hidden_proto (__libc_fatal)
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rtld_hidden_proto (__libc_fatal)
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libc_hidden_proto (__fgets_unlocked_chk)
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#if defined __LDBL_COMPAT || __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
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libc_hidden_ldbl_proto (__asprintf_chk)
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#else
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libc_hidden_proto (__asprintf_chk)
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#endif
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libc_hidden_ldbl_proto (__fprintf_chk)
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libc_hidden_ldbl_proto (__sprintf_chk)
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libc_hidden_ldbl_proto (__vsprintf_chk)
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extern FILE * __fmemopen (void *buf, size_t len, const char *mode);
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libc_hidden_proto (__fmemopen)
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extern int __gen_tempfd (int flags);
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libc_hidden_proto (__gen_tempfd)
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# ifdef __USE_EXTERN_INLINES
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__extern_inline int
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__NTH (__feof_unlocked (FILE *__stream))
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{
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return __feof_unlocked_body (__stream);
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}
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__extern_inline int
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__NTH (__ferror_unlocked (FILE *__stream))
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{
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return __ferror_unlocked_body (__stream);
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}
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__extern_inline int
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__getc_unlocked (FILE *__fp)
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{
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return __getc_unlocked_body (__fp);
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}
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__extern_inline int
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__putc_unlocked (int __c, FILE *__stream)
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{
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return __putc_unlocked_body (__c, __stream);
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}
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# endif
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extern __typeof (renameat) __renameat;
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libc_hidden_proto (__renameat)
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extern __typeof (renameat2) __renameat2;
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libc_hidden_proto (__renameat2)
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# endif /* not _ISOMAC */
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#endif /* stdio.h */
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