LCOV - code coverage report
Current view: top level - usr/include/bits - stdio.h (source / functions) Hit Total Coverage
Test: lcov.out Lines: 7 7 100.0 %
Date: 2017-01-05 09:15:16 Functions: 0 0 -
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* Optimizing macros and inline functions for stdio functions.
       2             :    Copyright (C) 1998-2016 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             :    <http://www.gnu.org/licenses/>.  */
      18             : 
      19             : #ifndef _STDIO_H
      20             : # error "Never include <bits/stdio.h> directly; use <stdio.h> instead."
      21             : #endif
      22             : 
      23             : #ifndef __extern_inline
      24             : # define __STDIO_INLINE inline
      25             : #else
      26             : # define __STDIO_INLINE __extern_inline
      27             : #endif
      28             : 
      29             : 
      30             : #ifdef __USE_EXTERN_INLINES
      31             : /* For -D_FORTIFY_SOURCE{,=2} bits/stdio2.h will define a different
      32             :    inline.  */
      33             : # if !(__USE_FORTIFY_LEVEL > 0 && defined __fortify_function)
      34             : /* Write formatted output to stdout from argument list ARG.  */
      35             : __STDIO_INLINE int
      36             : vprintf (const char *__restrict __fmt, _G_va_list __arg)
      37             : {
      38             :   return vfprintf (stdout, __fmt, __arg);
      39             : }
      40             : # endif
      41             : 
      42             : /* Read a character from stdin.  */
      43             : __STDIO_INLINE int
      44             : getchar (void)
      45             : {
      46             :   return _IO_getc (stdin);
      47             : }
      48             : 
      49             : 
      50             : # ifdef __USE_MISC
      51             : /* Faster version when locking is not necessary.  */
      52             : __STDIO_INLINE int
      53             : fgetc_unlocked (FILE *__fp)
      54             : {
      55             :   return _IO_getc_unlocked (__fp);
      56             : }
      57             : # endif /* misc */
      58             : 
      59             : 
      60             : # ifdef __USE_POSIX
      61             : /* This is defined in POSIX.1:1996.  */
      62             : __STDIO_INLINE int
      63             : getc_unlocked (FILE *__fp)
      64             : {
      65             :   return _IO_getc_unlocked (__fp);
      66             : }
      67             : 
      68             : /* This is defined in POSIX.1:1996.  */
      69             : __STDIO_INLINE int
      70             : getchar_unlocked (void)
      71             : {
      72             :   return _IO_getc_unlocked (stdin);
      73             : }
      74             : # endif /* POSIX */
      75             : 
      76             : 
      77             : /* Write a character to stdout.  */
      78             : __STDIO_INLINE int
      79             : putchar (int __c)
      80             : {
      81       92648 :   return _IO_putc (__c, stdout);
      82             : }
      83             : 
      84             : 
      85             : # ifdef __USE_MISC
      86             : /* Faster version when locking is not necessary.  */
      87             : __STDIO_INLINE int
      88             : fputc_unlocked (int __c, FILE *__stream)
      89             : {
      90        1887 :   return _IO_putc_unlocked (__c, __stream);
      91             : }
      92             : # endif /* misc */
      93             : 
      94             : 
      95             : # ifdef __USE_POSIX
      96             : /* This is defined in POSIX.1:1996.  */
      97             : __STDIO_INLINE int
      98             : putc_unlocked (int __c, FILE *__stream)
      99             : {
     100         446 :   return _IO_putc_unlocked (__c, __stream);
     101             : }
     102             : 
     103             : /* This is defined in POSIX.1:1996.  */
     104             : __STDIO_INLINE int
     105             : putchar_unlocked (int __c)
     106             : {
     107       16826 :   return _IO_putc_unlocked (__c, stdout);
     108             : }
     109             : # endif /* POSIX */
     110             : 
     111             : 
     112             : # ifdef __USE_GNU
     113             : /* Like `getdelim', but reads up to a newline.  */
     114             : __STDIO_INLINE _IO_ssize_t
     115             : getline (char **__lineptr, size_t *__n, FILE *__stream)
     116             : {
     117      210394 :   return __getdelim (__lineptr, __n, '\n', __stream);
     118             : }
     119             : # endif /* GNU */
     120             : 
     121             : 
     122             : # ifdef __USE_MISC
     123             : /* Faster versions when locking is not required.  */
     124             : __STDIO_INLINE int
     125             : __NTH (feof_unlocked (FILE *__stream))
     126             : {
     127        5039 :   return _IO_feof_unlocked (__stream);
     128             : }
     129             : 
     130             : /* Faster versions when locking is not required.  */
     131             : __STDIO_INLINE int
     132             : __NTH (ferror_unlocked (FILE *__stream))
     133             : {
     134        5017 :   return _IO_ferror_unlocked (__stream);
     135             : }
     136             : # endif /* misc */
     137             : 
     138             : #endif /* Use extern inlines.  */
     139             : 
     140             : 
     141             : #if defined __USE_MISC && defined __GNUC__ && defined __OPTIMIZE__ \
     142             :     && !defined __cplusplus
     143             : /* Perform some simple optimizations.  */
     144             : # define fread_unlocked(ptr, size, n, stream) \
     145             :   (__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n)    \
     146             :                    && (size_t) (size) * (size_t) (n) <= 8                  \
     147             :                    && (size_t) (size) != 0)                                   \
     148             :                   ? ({ char *__ptr = (char *) (ptr);                          \
     149             :                        FILE *__stream = (stream);                             \
     150             :                        size_t __cnt;                                          \
     151             :                        for (__cnt = (size_t) (size) * (size_t) (n);           \
     152             :                             __cnt > 0; --__cnt)                                    \
     153             :                          {                                                    \
     154             :                            int __c = _IO_getc_unlocked (__stream);            \
     155             :                            if (__c == EOF)                                    \
     156             :                              break;                                           \
     157             :                            *__ptr++ = __c;                                    \
     158             :                          }                                                    \
     159             :                        ((size_t) (size) * (size_t) (n) - __cnt)               \
     160             :                         / (size_t) (size); })                                 \
     161             :                   : (((__builtin_constant_p (size) && (size_t) (size) == 0)   \
     162             :                       || (__builtin_constant_p (n) && (size_t) (n) == 0))     \
     163             :                         /* Evaluate all parameters once.  */                  \
     164             :                      ? ((void) (ptr), (void) (stream), (void) (size),         \
     165             :                         (void) (n), (size_t) 0)                               \
     166             :                      : fread_unlocked (ptr, size, n, stream))))
     167             : 
     168             : # define fwrite_unlocked(ptr, size, n, stream) \
     169             :   (__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n)    \
     170             :                    && (size_t) (size) * (size_t) (n) <= 8                  \
     171             :                    && (size_t) (size) != 0)                                   \
     172             :                   ? ({ const char *__ptr = (const char *) (ptr);              \
     173             :                        FILE *__stream = (stream);                             \
     174             :                        size_t __cnt;                                          \
     175             :                        for (__cnt = (size_t) (size) * (size_t) (n);           \
     176             :                             __cnt > 0; --__cnt)                                    \
     177             :                          if (_IO_putc_unlocked (*__ptr++, __stream) == EOF)   \
     178             :                            break;                                             \
     179             :                        ((size_t) (size) * (size_t) (n) - __cnt)               \
     180             :                         / (size_t) (size); })                                 \
     181             :                   : (((__builtin_constant_p (size) && (size_t) (size) == 0)   \
     182             :                       || (__builtin_constant_p (n) && (size_t) (n) == 0))     \
     183             :                         /* Evaluate all parameters once.  */                  \
     184             :                      ? ((void) (ptr), (void) (stream), (void) (size),         \
     185             :                         (void) (n), (size_t) 0)                               \
     186             :                      : fwrite_unlocked (ptr, size, n, stream))))
     187             : #endif
     188             : 
     189             : /* Define helper macro.  */
     190             : #undef __STDIO_INLINE

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