newlib: update

git-svn-id: svn://kolibrios.org@5141 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/newlib/libc/stdio/ferror.c

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley.  The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/*
+FUNCTION
+<<ferror>>---test whether read/write error has occurred
+
+INDEX
+	ferror
+
+ANSI_SYNOPSIS
+	#include <stdio.h>
+	int ferror(FILE *<[fp]>);
+
+TRAD_SYNOPSIS
+	#include <stdio.h>
+	int ferror(<[fp]>)
+	FILE *<[fp]>;
+
+DESCRIPTION
+The <<stdio>> functions maintain an error indicator with each file
+pointer <[fp]>, to record whether any read or write errors have
+occurred on the associated file or stream.
+Use <<ferror>> to query this indicator.
+
+See <<clearerr>> to reset the error indicator.
+
+RETURNS
+<<ferror>> returns <<0>> if no errors have occurred; it returns a
+nonzero value otherwise.
+
+PORTABILITY
+ANSI C requires <<ferror>>.
+
+No supporting OS subroutines are required.
+*/
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "%W% (Berkeley) %G%";
+#endif /* LIBC_SCCS and not lint */
+
+#include <_ansi.h>
+#include <stdio.h>
+#include "local.h"
+
+/* A subroutine version of the macro ferror.  */
+
+#undef ferror
+
+int
+_DEFUN(ferror, (fp),
+       FILE * fp)
+{
+  int result;
+  CHECK_INIT(_REENT, fp);
+  _newlib_flockfile_start (fp);
+  result = __sferror (fp);
+  _newlib_flockfile_end (fp);
+  return result;
+}