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Diffstat (limited to 'REORG.TODO/libio/bits/stdio.h')
| -rw-r--r-- | REORG.TODO/libio/bits/stdio.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/REORG.TODO/libio/bits/stdio.h b/REORG.TODO/libio/bits/stdio.h new file mode 100644 index 0000000000..21ad2fb20c --- /dev/null +++ b/REORG.TODO/libio/bits/stdio.h @@ -0,0 +1,190 @@ +/* Optimizing macros and inline functions for stdio functions. + Copyright (C) 1998-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _STDIO_H +# error "Never include <bits/stdio.h> directly; use <stdio.h> instead." +#endif + +#ifndef __extern_inline +# define __STDIO_INLINE inline +#else +# define __STDIO_INLINE __extern_inline +#endif + + +#ifdef __USE_EXTERN_INLINES +/* For -D_FORTIFY_SOURCE{,=2} bits/stdio2.h will define a different + inline. */ +# if !(__USE_FORTIFY_LEVEL > 0 && defined __fortify_function) +/* Write formatted output to stdout from argument list ARG. */ +__STDIO_INLINE int +vprintf (const char *__restrict __fmt, _G_va_list __arg) +{ + return vfprintf (stdout, __fmt, __arg); +} +# endif + +/* Read a character from stdin. */ +__STDIO_INLINE int +getchar (void) +{ + return _IO_getc (stdin); +} + + +# ifdef __USE_MISC +/* Faster version when locking is not necessary. */ +__STDIO_INLINE int +fgetc_unlocked (FILE *__fp) +{ + return _IO_getc_unlocked (__fp); +} +# endif /* misc */ + + +# ifdef __USE_POSIX +/* This is defined in POSIX.1:1996. */ +__STDIO_INLINE int +getc_unlocked (FILE *__fp) +{ + return _IO_getc_unlocked (__fp); +} + +/* This is defined in POSIX.1:1996. */ +__STDIO_INLINE int +getchar_unlocked (void) +{ + return _IO_getc_unlocked (stdin); +} +# endif /* POSIX */ + + +/* Write a character to stdout. */ +__STDIO_INLINE int +putchar (int __c) +{ + return _IO_putc (__c, stdout); +} + + +# ifdef __USE_MISC +/* Faster version when locking is not necessary. */ +__STDIO_INLINE int +fputc_unlocked (int __c, FILE *__stream) +{ + return _IO_putc_unlocked (__c, __stream); +} +# endif /* misc */ + + +# ifdef __USE_POSIX +/* This is defined in POSIX.1:1996. */ +__STDIO_INLINE int +putc_unlocked (int __c, FILE *__stream) +{ + return _IO_putc_unlocked (__c, __stream); +} + +/* This is defined in POSIX.1:1996. */ +__STDIO_INLINE int +putchar_unlocked (int __c) +{ + return _IO_putc_unlocked (__c, stdout); +} +# endif /* POSIX */ + + +# ifdef __USE_GNU +/* Like `getdelim', but reads up to a newline. */ +__STDIO_INLINE _IO_ssize_t +getline (char **__lineptr, size_t *__n, FILE *__stream) +{ + return __getdelim (__lineptr, __n, '\n', __stream); +} +# endif /* GNU */ + + +# ifdef __USE_MISC +/* Faster versions when locking is not required. */ +__STDIO_INLINE int +__NTH (feof_unlocked (FILE *__stream)) +{ + return _IO_feof_unlocked (__stream); +} + +/* Faster versions when locking is not required. */ +__STDIO_INLINE int +__NTH (ferror_unlocked (FILE *__stream)) +{ + return _IO_ferror_unlocked (__stream); +} +# endif /* misc */ + +#endif /* Use extern inlines. */ + + +#if defined __USE_MISC && defined __GNUC__ && defined __OPTIMIZE__ \ + && !defined __cplusplus +/* Perform some simple optimizations. */ +# define fread_unlocked(ptr, size, n, stream) \ + (__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n) \ + && (size_t) (size) * (size_t) (n) <= 8 \ + && (size_t) (size) != 0) \ + ? ({ char *__ptr = (char *) (ptr); \ + FILE *__stream = (stream); \ + size_t __cnt; \ + for (__cnt = (size_t) (size) * (size_t) (n); \ + __cnt > 0; --__cnt) \ + { \ + int __c = _IO_getc_unlocked (__stream); \ + if (__c == EOF) \ + break; \ + *__ptr++ = __c; \ + } \ + ((size_t) (size) * (size_t) (n) - __cnt) \ + / (size_t) (size); }) \ + : (((__builtin_constant_p (size) && (size_t) (size) == 0) \ + || (__builtin_constant_p (n) && (size_t) (n) == 0)) \ + /* Evaluate all parameters once. */ \ + ? ((void) (ptr), (void) (stream), (void) (size), \ + (void) (n), (size_t) 0) \ + : 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) * (size_t) (n) <= 8 \ + && (size_t) (size) != 0) \ + ? ({ const char *__ptr = (const char *) (ptr); \ + FILE *__stream = (stream); \ + size_t __cnt; \ + for (__cnt = (size_t) (size) * (size_t) (n); \ + __cnt > 0; --__cnt) \ + if (_IO_putc_unlocked (*__ptr++, __stream) == EOF) \ + break; \ + ((size_t) (size) * (size_t) (n) - __cnt) \ + / (size_t) (size); }) \ + : (((__builtin_constant_p (size) && (size_t) (size) == 0) \ + || (__builtin_constant_p (n) && (size_t) (n) == 0)) \ + /* Evaluate all parameters once. */ \ + ? ((void) (ptr), (void) (stream), (void) (size), \ + (void) (n), (size_t) 0) \ + : fwrite_unlocked (ptr, size, n, stream)))) +#endif + +/* Define helper macro. */ +#undef __STDIO_INLINE |