2002-08-29 Kazuhiro Fujieda <fujieda@jaist.ac.jp>

        * libc/include/wchar.h: Define NULL. Define WEOF more general
        way. Declare functions in newlib manner.
        * libc/stdlib/Makefile.am: Delete wmem*.c
        * libc/stdlib/Makefile.in: Regenerated.
        * libc/stdlib/wmemchr.c: Delete.
        * libc/stdlib/wmemcmp.c: Ditto.
        * libc/stdlib/wmemcpy.c: Ditto.
        * libc/stdlib/wmemmove.c: Ditto.
        * libc/stdlib/wmemset.c: Ditto.
        * libc/string/Makefile.am: Add wmem*.c and wcs*.c.
        * libc/string/Makefile.in: Regenerated.
        * libc/string/wcscat.c: New file derived from the NetBSD C Library.
        * libc/string/wcschr.c: Ditto.
        * libc/string/wcscmp.c: Ditto.
        * libc/string/wcscpy.c: Ditto.
        * libc/string/wcscspn.c: Ditto.
        * libc/string/wcslcat.c: Ditto.
        * libc/string/wcslcpy.c: Ditto.
        * libc/string/wcslen.c: Ditto.
        * libc/string/wcsncat.c: Ditto.
        * libc/string/wcsncmp.c: Ditto.
        * libc/string/wcsncpy.c: Ditto.
        * libc/string/wcspbrk.c: Ditto.
        * libc/string/wcsrchr.c: Ditto.
        * libc/string/wcsspn.c: Ditto.
        * libc/string/wcsstr.c: Ditto.
        * libc/string/wmemchr.c: Ditto.
        * libc/string/wmemcmp.c: Ditto.
        * libc/string/wmemcpy.c: Ditto.
        * libc/string/wmemmove.c: Ditto.
        * libc/string/wmemset.c: Ditto.

1 files changed, 92 insertions, 0 deletions

diff --git a/newlib/libc/string/wcsncmp.c b/newlib/libc/string/wcsncmp.c
new file mode 100644
index 000000000..1ced7e165
--- /dev/null
+++ b/newlib/libc/string/wcsncmp.c
@@ -0,0 +1,92 @@
+/*
+FUNCTION
+	<<wcsncmp>>---compare part of two wide-character strings 
+
+ANSI_SYNOPSIS
+	#include <wchar.h>
+	int wcsncmp(const wchar_t *<[s1]>, const wchar_t *<[s2]>, size_t <[n]>);
+
+TRAD_SYNOPSIS
+	int wcsncmp(<[s1]>, <[s2]>, <[n]>
+	const wchar_t *<[s1]>;
+	const wchar_t *<[s2]>;
+	size_t <[n]>;
+
+DESCRIPTION
+	The <<wcsncmp>> function compares not more than <[n]> wide-character
+	codes (wide-character codes that follow a null wide-character code are
+	not compared) from the array pointed to by <[s1]> to the array pointed
+	to by <[s2]>.
+
+	The sign of a non-zero return value is determined by the sign of the
+	difference between the values of the first pair of wide-character codes
+	that differ in the objects being compared. 
+
+RETURNS
+	Upon successful completion, <<wcsncmp>> returns an integer greater than,
+	equal to or less than 0, if the possibly null-terminated array pointed
+	to by <[s1]> is greater than, equal to or less than the possibly
+	null-terminated array pointed to by <[s2]> respectively. 
+
+PORTABILITY
+<<wcsncmp>> is ISO/IEC 9899/AMD1:1995 (ISO C).
+No supporting OS subroutines are required.
+*/
+
+/*	$NetBSD$	*/
+
+/*
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <_ansi.h>
+#include <wchar.h>
+
+int
+_DEFUN (wcsncmp, (s1, s2, n),
+	_CONST wchar_t * s1 _AND
+	_CONST wchar_t * s2 _AND
+	size_t n)
+{
+
+  if (n == 0)
+    return (0);
+  do
+    {
+      if (*s1 != *s2++)
+	{
+	  /* XXX assumes wchar_t = short */
+	  return (*(_CONST unsigned short *) s1 -
+		  *(_CONST unsigned short *) --s2);
+	}
+      if (*s1++ == 0)
+	break;
+    }
+  while (--n != 0);
+  return (0);
+}