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/* Optimizing macros and inline functions for stdio functions.
Copyright (C) 198 Free Software Foundation, Inc.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _STDIO_H
# error "Never include <bits/stdio.h> directly; use <stdio.h> instead."
#endif
#ifdef __cplusplus
# define __STDIO_INLINE inline
#else
# define __STDIO_INLINE extern __inline
#endif
#ifdef __USE_EXTERN_INLINES
/* Write formatted output to stdout from argument list ARG. */
__STDIO_INLINE int
vprintf (__const char *__restrict __fmt, _G_va_list __arg) __THROW
{
return vfprintf (stdout, __fmt, __arg);
}
/* Read a character from stdin. */
__STDIO_INLINE int
getchar (void) __THROW
{
return _IO_getc (stdin);
}
# if defined __USE_POSIX || defined __USE_MISC
/* This is defined in POSIX.1:1996. */
__STDIO_INLINE int
getc_unlocked (FILE *__fp) __THROW
{
return _IO_getc_unlocked (__fp);
}
/* This is defined in POSIX.1:1996. */
__STDIO_INLINE int
getchar_unlocked (void) __THROW
{
return _IO_getc_unlocked (stdin);
}
# endif /* POSIX || misc */
/* Write a character to stdout. */
__STDIO_INLINE int
putchar (int __c) __THROW
{
return _IO_putc (__c, stdout);
}
# ifdef __USE_MISC
/* Faster version when locking is not necessary. */
__STDIO_INLINE int
fputc_unlocked (int __c, FILE *__stream) __THROW
{
return _IO_putc_unlocked (__c, __stream);
}
# endif /* misc */
# if defined __USE_POSIX || defined __USE_MISC
/* This is defined in POSIX.1:1996. */
__STDIO_INLINE int
putc_unlocked (int __c, FILE *__stream) __THROW
{
return _IO_putc_unlocked (__c, __stream);
}
/* This is defined in POSIX.1:1996. */
__STDIO_INLINE int
putchar_unlocked (int __c) __THROW
{
return _IO_putc_unlocked (__c, stdout);
}
# endif /* POSIX || misc */
# ifdef __USE_GNU
/* Like `getdelim', but reads up to a newline. */
__STDIO_INLINE _IO_ssize_t
getline (char **__lineptr, size_t *__n, FILE *__stream) __THROW
{
return __getdelim (__lineptr, __n, '\n', __stream);
}
# endif /* GNU */
# ifdef __USE_MISC
/* Faster versions when locking is not required. */
__STDIO_INLINE int
feof_unlocked (FILE *__stream) __THROW
{
return _IO_feof_unlocked (__stream);
}
/* Faster versions when locking is not required. */
__STDIO_INLINE int
ferror_unlocked (FILE *__stream) __THROW
{
return _IO_ferror_unlocked (__stream);
}
# endif /* misc */
#endif /* Use extern inlines. */
#if defined __USE_MISC && defined __GNUC__ && defined __OPTIMIZE__
/* Perform some simple optimizations. */
# define fread_unlocked(ptr, size, n, stream) \
(__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n) \
&& (size_t) ((size) * (n)) <= 8) \
? ({ char *__ptr = (char *) (ptr); \
FILE *__stream = (stream); \
int __c; \
size_t __cnt = (size) * (n); \
while (__cnt-- > 0) \
{ \
__c = _IO_getc_unlocked (__stream); \
if (__c == EOF) \
break; \
*__ptr++ = __c; \
} \
((size_t) ((size) * (n)) - __cnt) / (size); }) \
: fread_unlocked (ptr, size, n, stream)))
# define fwrite_unlocked(ptr, size, n, stream) \
(__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n) \
&& (size_t) ((size) * (n)) <= 8) \
? ({ const char *__ptr = (const char *) (ptr); \
FILE *__stream = (stream); \
size_t __cnt = (size) * (n); \
while (__cnt-- > 0) \
if (_IO_putc_unlocked (*__ptr++, __stream) == EOF) \
break; \
((size_t) ((size) * (n)) - __cnt) / (size); }) \
: fwrite_unlocked (ptr, size, n, stream)))
#endif
/* Define helper macro. */
#undef __STDIO_INLINE
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