/* Flushing buffers of a FILE stream.
- Copyright (C) 2007-2008 Free Software Foundation, Inc.
+ Copyright (C) 2007-2011 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
#include <config.h>
/* Specification. */
-#include "fpurge.h"
+#include <stdio.h>
-#if HAVE___FPURGE /* glibc >= 2.2, Solaris >= 7 */
+#if HAVE___FPURGE /* glibc >= 2.2, Haiku, Solaris >= 7 */
# include <stdio_ext.h>
#endif
#include <stdlib.h>
int
fpurge (FILE *fp)
{
-#if HAVE___FPURGE /* glibc >= 2.2, Solaris >= 7 */
+#if HAVE___FPURGE /* glibc >= 2.2, Haiku, Solaris >= 7 */
__fpurge (fp);
/* The __fpurge function does not have a return value. */
return 0;
-#elif HAVE_FPURGE /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X */
+#elif HAVE_FPURGE /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin 1.7 */
/* Call the system's fpurge function. */
# undef fpurge
<stdio.h> on BSD systems says:
"The following always hold: if _flags & __SRD, _w is 0."
If this invariant is not fulfilled and the stream is read-write but
- currently writing, subsequent putc or fputc calls will write directly
+ currently reading, subsequent putc or fputc calls will write directly
into the buffer, although they shouldn't be allowed to. */
if ((fp_->_flags & __SRD) != 0)
fp_->_w = 0;
/* Most systems provide FILE as a struct and the necessary bitmask in
<stdio.h>, because they need it for implementing getc() and putc() as
fast macros. */
-# if defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
+# if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
fp->_IO_read_end = fp->_IO_read_ptr;
fp->_IO_write_ptr = fp->_IO_write_base;
/* Avoid memory leak when there is an active ungetc buffer. */
fp_->_p = fp_->_bf._base;
fp_->_r = 0;
fp_->_w = ((fp_->_flags & (__SLBF | __SNBF | __SRD)) == 0 /* fully buffered and not currently reading? */
- ? fp_->_bf._size
- : 0);
+ ? fp_->_bf._size
+ : 0);
/* Avoid memory leak when there is an active ungetc buffer. */
if (fp_ub._base != NULL)
{
if (fp_ub._base != fp_->_ubuf)
- free (fp_ub._base);
+ free (fp_ub._base);
fp_ub._base = NULL;
}
return 0;
fp->_wcount = 0;
fp->_ungetc_count = 0;
return 0;
-# elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */
+# elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
fp->_ptr = fp->_base;
if (fp->_ptr != NULL)
fp->_cnt = 0;
/* fp->_Buf <= fp->_Next <= fp->_Rend */
fp->_Rend = fp->_Next;
return 0;
+# elif defined __MINT__ /* Atari FreeMiNT */
+ if (fp->__pushed_back)
+ {
+ fp->__bufp = fp->__pushback_bufp;
+ fp->__pushed_back = 0;
+ }
+ /* Preserve the current file position. */
+ if (fp->__target != -1)
+ fp->__target += fp->__bufp - fp->__buffer;
+ fp->__bufp = fp->__buffer;
+ /* Nothing in the buffer, next getc is nontrivial. */
+ fp->__get_limit = fp->__bufp;
+ /* Nothing in the buffer, next putc is nontrivial. */
+ fp->__put_limit = fp->__buffer;
+ return 0;
# else
- #error "Please port gnulib fpurge.c to your platform! Look at the definitions of fflush, setvbuf and ungetc on your system, then report this to bug-gnulib."
+# error "Please port gnulib fpurge.c to your platform! Look at the definitions of fflush, setvbuf and ungetc on your system, then report this to bug-gnulib."
# endif
#endif