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glibc/include/stdio.h
Arjun Shankar 330fadfc62 Ensure `wint_t' is defined before use in include/stdio.h 
While trying to get nptl/tst-initializers1.c to include the test skeleton, I
came across a couple of speed bumps. Firstly: after making the appropriate
changes to the test, running `make check' led to this error:

> In file included from ../malloc/malloc.h:24:0,
..
>                  from tst-initializers1.c:60:
> ../include/stdio.h:111:1: error: unknown type name `wint_t'
>  extern wint_t __getwc_unlocked (FILE *__fp);

So, `wint_t' is used before being defined. Question: Why did test-skeleton.c
not cause this error in any of the other tests that include it?

Anyway, I noticed include/stdio.h includes stddef.h, which in turn defines
`wint_t', but only if `__need_wint_t' is defined. So I put in a
`#define __need_wint_t' before the include to get rid of the error. Is that
the correct fix?

A subsequent `make && make check' led to this second error:

>                  from tst-initializers1-c89.c:1:
> ../test-skeleton.c: In function `main':
> ../test-skeleton.c:356:11: error: `for' loop initial declarations are only
>  allowed in C99 mode
>            for (struct temp_name_list *n = temp_name_list;

Although there seem to be several other C89 no-noes in test-skeleton.c, I
needed only to fix this specific one for gcc-4.8.3 to stop complaining.
2015-05-18 12:28:06 +05:30

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#ifndef _STDIO_H
# if defined __need_FILE || defined __need___FILE || defined _ISOMAC
# include <libio/stdio.h>
# else
# include <libio/stdio.h>
/* Now define the internal interfaces. */
__BEGIN_DECLS
extern int __fcloseall (void);
extern int __snprintf (char *__restrict __s, size_t __maxlen,
const char *__restrict __format, ...)
__attribute__ ((__format__ (__printf__, 3, 4)));
extern int __vsnprintf (char *__restrict __s, size_t __maxlen,
const char *__restrict __format, _G_va_list __arg)
__attribute__ ((__format__ (__printf__, 3, 0)));
extern int __vfscanf (FILE *__restrict __s,
const char *__restrict __format,
_G_va_list __arg)
__attribute__ ((__format__ (__scanf__, 2, 0)));
libc_hidden_proto (__vfscanf)
extern int __vscanf (const char *__restrict __format,
_G_va_list __arg)
__attribute__ ((__format__ (__scanf__, 1, 0)));
extern _IO_ssize_t __getline (char **__lineptr, size_t *__n,
FILE *__stream);
extern int __vsscanf (const char *__restrict __s,
const char *__restrict __format,
_G_va_list __arg)
__attribute__ ((__format__ (__scanf__, 2, 0)));
# ifndef __cplusplus
extern int __sprintf_chk (char *, int, size_t, const char *, ...) __THROW;
extern int __snprintf_chk (char *, size_t, int, size_t, const char *, ...)
__THROW;
extern int __vsprintf_chk (char *, int, size_t, const char *,
_G_va_list) __THROW;
extern int __vsnprintf_chk (char *, size_t, int, size_t, const char *,
_G_va_list) __THROW;
extern int __printf_chk (int, const char *, ...);
extern int __fprintf_chk (FILE *, int, const char *, ...);
extern int __vprintf_chk (int, const char *, _G_va_list);
extern int __vfprintf_chk (FILE *, int, const char *, _G_va_list);
extern char *__fgets_unlocked_chk (char *buf, size_t size, int n, FILE *fp);
extern char *__fgets_chk (char *buf, size_t size, int n, FILE *fp);
extern int __asprintf_chk (char **, int, const char *, ...) __THROW;
extern int __vasprintf_chk (char **, int, const char *, _G_va_list) __THROW;
extern int __dprintf_chk (int, int, const char *, ...);
extern int __vdprintf_chk (int, int, const char *, _G_va_list);
extern int __obstack_printf_chk (struct obstack *, int, const char *, ...)
__THROW;
extern int __obstack_vprintf_chk (struct obstack *, int, const char *,
_G_va_list) __THROW;
# endif
extern int __isoc99_fscanf (FILE *__restrict __stream,
const char *__restrict __format, ...) __wur;
extern int __isoc99_scanf (const char *__restrict __format, ...) __wur;
extern int __isoc99_sscanf (const char *__restrict __s,
const char *__restrict __format, ...) __THROW;
extern int __isoc99_vfscanf (FILE *__restrict __s,
const char *__restrict __format,
_G_va_list __arg) __wur;
extern int __isoc99_vscanf (const char *__restrict __format,
_G_va_list __arg) __wur;
extern int __isoc99_vsscanf (const char *__restrict __s,
const char *__restrict __format,
_G_va_list __arg) __THROW;
libc_hidden_proto (__isoc99_vsscanf)
libc_hidden_proto (__isoc99_vfscanf)
/* Prototypes for compatibility functions. */
extern FILE *__new_tmpfile (void);
extern FILE *__old_tmpfile (void);
# define __need_size_t
# define __need_wint_t
# include <stddef.h>
/* Generate a unique file name (and possibly open it). */
extern int __path_search (char *__tmpl, size_t __tmpl_len,
const char *__dir, const char *__pfx,
int __try_tempdir);
extern int __gen_tempname (char *__tmpl, int __suffixlen, int __flags,
int __kind);
/* The __kind argument to __gen_tempname may be one of: */
# define __GT_FILE 0 /* create a file */
# define __GT_DIR 1 /* create a directory */
# define __GT_NOCREATE 2 /* just find a name not currently in use */
/* Print out MESSAGE on the error output and abort. */
extern void __libc_fatal (const char *__message)
__attribute__ ((__noreturn__));
extern void __libc_message (int do_abort, const char *__fnt, ...);
extern void __fortify_fail (const char *msg)
__attribute__ ((__noreturn__)) internal_function;
libc_hidden_proto (__fortify_fail)
/* Acquire ownership of STREAM. */
extern void __flockfile (FILE *__stream);
/* Relinquish the ownership granted for STREAM. */
extern void __funlockfile (FILE *__stream);
/* Try to acquire ownership of STREAM but do not block if it is not
possible. */
extern int __ftrylockfile (FILE *__stream);
extern int __getc_unlocked (FILE *__fp);
extern wint_t __getwc_unlocked (FILE *__fp);
extern int __fxprintf (FILE *__fp, const char *__fmt, ...)
__attribute__ ((__format__ (__printf__, 2, 3)));
extern const char *const _sys_errlist_internal[] attribute_hidden;
extern int _sys_nerr_internal attribute_hidden;
libc_hidden_proto (__asprintf)
# if IS_IN (libc)
extern _IO_FILE *_IO_new_fopen (const char*, const char*);
# define fopen(fname, mode) _IO_new_fopen (fname, mode)
extern _IO_FILE *_IO_new_fdopen (int, const char*);
# define fdopen(fd, mode) _IO_new_fdopen (fd, mode)
extern int _IO_new_fclose (_IO_FILE*);
# define fclose(fp) _IO_new_fclose (fp)
extern int _IO_fputs (const char*, _IO_FILE*);
libc_hidden_proto (_IO_fputs)
# define fputs(str, fp) _IO_fputs (str, fp)
extern int _IO_new_fsetpos (_IO_FILE *, const _IO_fpos_t *);
# define fsetpos(fp, posp) _IO_new_fsetpos (fp, posp)
extern int _IO_new_fgetpos (_IO_FILE *, _IO_fpos_t *);
# define fgetpos(fp, posp) _IO_new_fgetpos (fp, posp)
# endif
libc_hidden_proto (dprintf)
libc_hidden_proto (fprintf)
libc_hidden_proto (vfprintf)
libc_hidden_proto (sprintf)
libc_hidden_proto (sscanf)
libc_hidden_proto (fwrite)
libc_hidden_proto (perror)
libc_hidden_proto (remove)
libc_hidden_proto (rewind)
libc_hidden_proto (fileno)
extern __typeof (fileno) __fileno;
libc_hidden_proto (__fileno)
libc_hidden_proto (fwrite)
libc_hidden_proto (fseek)
extern __typeof (ftello) __ftello;
libc_hidden_proto (__ftello)
libc_hidden_proto (fflush)
libc_hidden_proto (fflush_unlocked)
extern __typeof (fread_unlocked) __fread_unlocked;
libc_hidden_proto (__fread_unlocked)
libc_hidden_proto (fwrite_unlocked)
libc_hidden_proto (fgets_unlocked)
extern __typeof (fgets_unlocked) __fgets_unlocked;
libc_hidden_proto (__fgets_unlocked)
libc_hidden_proto (fputs_unlocked)
libc_hidden_proto (fmemopen)
libc_hidden_proto (open_memstream)
libc_hidden_proto (__libc_fatal)
libc_hidden_proto (__vsprintf_chk)
libc_hidden_proto (__vsnprintf_chk)
libc_hidden_proto (__vfprintf_chk)
libc_hidden_proto (__vasprintf_chk)
libc_hidden_proto (__vdprintf_chk)
libc_hidden_proto (__obstack_vprintf_chk)
/* The <stdio.h> header does not include the declaration for gets
anymore when compiling with _GNU_SOURCE. Provide a copy here. */
extern char *gets (char *__s);
# if __USE_FORTIFY_LEVEL > 0
extern char *__gets_chk (char *__str, size_t) __wur;
extern char *__REDIRECT (__gets_warn, (char *__str), gets)
__wur __warnattr ("please use fgets or getline instead, gets can't "
"specify buffer size");
__fortify_function __wur char *
gets (char *__str)
{
if (__bos (__str) != (size_t) -1)
return __gets_chk (__str, __bos (__str));
return __gets_warn (__str);
}
# endif
__END_DECLS
# endif
#endif
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