diff options
Diffstat (limited to 'include/stdio.h')
| -rw-r--r-- | include/stdio.h | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/include/stdio.h b/include/stdio.h index a5de1de..a8aaf6d 100644 --- a/include/stdio.h +++ b/include/stdio.h @@ -70,6 +70,12 @@ struct __sbuf { struct __file_lock; +/* hold a buncha junk that would grow the ABI */ +struct __sFILEX { + struct __file_lock *_mtlock; /* used for MT-safety */ + unsigned char *_up; /* saved _p when _p is doing ungetc data */ +}; + /* * stdio state variables. * @@ -114,7 +120,7 @@ typedef struct __sFILE { /* separate buffer for long sequences of ungetc() */ struct __sbuf _ub; /* ungetc buffer */ - unsigned char *_up; /* saved _p when _p is doing ungetc data */ + struct __sFILEX *_extra; /* additions to FILE to not break ABI */ int _ur; /* saved _r when _r is counting ungetc data */ /* tricks to meet minimum requirements even when malloc() fails */ @@ -127,13 +133,10 @@ typedef struct __sFILE { /* Unix stdio files get aligned to block boundaries on fseek() */ int _blksize; /* stat.st_blksize (may be != _bf._size) */ fpos_t _offset; /* current lseek offset (see WARNING) */ - struct __file_lock *_lock; /* used for MT-safety */ } FILE; __BEGIN_DECLS -extern FILE __stdin; -extern FILE __stdout; -extern FILE __stderr; +extern FILE __sF[]; __END_DECLS #define __SLBF 0x0001 /* line buffered */ @@ -196,9 +199,9 @@ __END_DECLS #define SEEK_END 2 /* set file offset to EOF plus offset */ #endif -#define stdin (&__stdin) -#define stdout (&__stdout) -#define stderr (&__stderr) +#define stdin (&__sF[0]) +#define stdout (&__sF[1]) +#define stderr (&__sF[2]) /* * Functions defined in ANSI C standard. |
