/* Retrieve information about a FILE stream.
- Copyright (C) 2007-2009 Free Software Foundation, Inc.
+ Copyright (C) 2007-2012 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
if (fp->_IO_write_ptr > fp->_IO_write_base)
return 0;
return (fp->_IO_read_end - fp->_IO_read_ptr)
- + (fp->_flags & _IO_IN_BACKUP ? fp->_IO_save_end - fp->_IO_save_base :
- 0);
+ + (fp->_flags & _IO_IN_BACKUP ? fp->_IO_save_end - fp->_IO_save_base :
+ 0);
#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
if ((fp_->_flags & __SWR) != 0 || fp_->_r < 0)
return 0;
return __sreadahead (fp);
# else
return fp_->_r
- + (HASUB (fp) ? fp_->_ur : 0);
+ + (HASUB (fp) ? fp_->_ur : 0);
# endif
#elif defined __EMX__ /* emx+gcc */
if ((fp->_flags & _IOWRT) != 0)
/* equivalent to
(fp->_ungetc_count == 0 ? fp->_rcount : fp->_ungetc_count - fp->_rcount) */
return (fp->_rcount > 0 ? fp->_rcount : fp->_ungetc_count - fp->_rcount);
-#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */
+#elif defined __minix /* Minix */
+ if ((fp_->_flags & _IOWRITING) != 0)
+ return 0;
+ return fp_->_count;
+#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
if ((fp_->_flag & _IOWRT) != 0)
return 0;
return fp_->_cnt;
if (fp->__modeflags & __FLAG_WRITING)
return 0;
return (fp->__bufread - fp->__bufpos)
- + (fp->__modeflags & __FLAG_UNGOT ? 1 : 0);
+ + (fp->__modeflags & __FLAG_UNGOT ? 1 : 0);
# else
return 0;
# endif
/* fp->_Buf <= fp->_Next <= fp->_Rend,
and fp->_Rend may be overridden by fp->_Rsave. */
return ((fp->_Rsave ? fp->_Rsave : fp->_Rend) - fp->_Next)
- + (fp->_Mode & 0x4000 /* _MBYTE */
- ? (fp->_Back + sizeof (fp->_Back)) - fp->_Rback
- : 0);
+ + (fp->_Mode & 0x4000 /* _MBYTE */
+ ? (fp->_Back + sizeof (fp->_Back)) - fp->_Rback
+ : 0);
#elif defined __MINT__ /* Atari FreeMiNT */
if (!fp->__mode.__read)
return 0;
return (fp->__pushed_back
- ? fp->__get_limit - fp->__pushback_bufp + 1
- : fp->__get_limit - fp->__bufp);
+ ? fp->__get_limit - fp->__pushback_bufp + 1
+ : fp->__get_limit - fp->__bufp);
+#elif defined EPLAN9 /* Plan9 */
+ if (fp->state == 4 /* WR */ || fp->rp >= fp->wp)
+ return 0;
+ return fp->wp - fp->rp;
#elif defined SLOW_BUT_NO_HACKS /* users can define this */
abort ();
return 0;