newlib: wide char support

git-svn-id: svn://kolibrios.org@6607 a494cfbc-eb01-0410-851d-a64ba20cac60

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

@@ -0,0 +1,69 @@
+/*
+ * 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
+<<getw>>---read a word (int)
+
+INDEX
+	getw
+
+ANSI_SYNOPSIS
+	#include <stdio.h>
+	int getw(FILE *<[fp]>);
+
+TRAD_SYNOPSIS
+	#include <stdio.h>
+	int getw(<[fp]>)
+	FILE *<[fp]>;
+
+DESCRIPTION
+<<getw>> is a function, defined in <<stdio.h>>.  You can use <<getw>>
+to get the next word from the file or stream identified by <[fp]>.  As
+a side effect, <<getw>> advances the file's current position
+indicator.
+
+RETURNS
+The next word (read as an <<int>>), unless there is no more
+data or the host system reports a read error; in either of these
+situations, <<getw>> returns <<EOF>>.  Since <<EOF>> is a valid
+<<int>>, you must use <<ferror>> or <<feof>> to distinguish these
+situations.
+
+PORTABILITY
+<<getw>> is a remnant of K&R C; it is not part of any ISO C Standard.
+<<fread>> should be used instead.  In fact, this implementation of
+<<getw>> is based upon <<fread>>.
+
+Supporting OS subroutines required: <<fread>>.  */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "%W% (Berkeley) %G%";
+#endif /* LIBC_SCCS and not lint */
+
+#include <_ansi.h>
+#include <stdio.h>
+
+int
+_DEFUN(getw, (fp),
+       register FILE *fp)
+{
+  int result;
+  if (fread ((char*)&result, sizeof (result), 1, fp) != 1)
+    return EOF;
+  return result;
+}