Update copyright dates with scripts/update-copyrights.

[thirdparty/glibc.git] / wcsmbs / wcpncpy.c

diff --git a/wcsmbs/wcpncpy.c b/wcsmbs/wcpncpy.c
index 9fbe6655928f957ba054a9a95831dea6552cf099..7568f3b11c4ab2e6b0e50c8129b85656924accb5 100644 (file)
--- a/wcsmbs/wcpncpy.c
+++ b/wcsmbs/wcpncpy.c
@@ -1,38 +1,35 @@
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
 
    The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
 
    The GNU C Library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
+   Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
 
 #include <wchar.h>
 
+#ifdef WCPNCPY
+# define __wcpncpy WCPNCPY
+#endif
 
 /* Copy no more than N wide-characters of SRC to DEST, returning the
    address of the last character written into DEST.  */
 wchar_t *
-__wcpncpy (dest, src, n)
-     wchar_t *dest;
-     const wchar_t *src;
-     size_t n;
+__wcpncpy (wchar_t *dest, const wchar_t *src, size_t n)
 {
   wint_t c;
   wchar_t *const s = dest;
 
-  --dest;
-
   if (n >= 4)
     {
       size_t n4 = n >> 2;
@@ -40,27 +37,25 @@ __wcpncpy (dest, src, n)
       for (;;)
        {
          c = *src++;
-         *++dest = c;
+         *dest++ = c;
          if (c == L'\0')
            break;
          c = *src++;
-         *++dest = c;
+         *dest++ = c;
          if (c == L'\0')
            break;
          c = *src++;
-         *++dest = c;
+         *dest++ = c;
          if (c == L'\0')
            break;
          c = *src++;
-         *++dest = c;
+         *dest++ = c;
          if (c == L'\0')
            break;
          if (--n4 == 0)
            goto last_chars;
        }
-      n = n - (dest - s) - 1;
-      if (n == 0)
-       return dest;
+      n -= dest - s;
       goto zero_fill;
     }
 
@@ -69,21 +64,24 @@ __wcpncpy (dest, src, n)
   if (n == 0)
     return dest;
 
-  do
+  for (;;)
     {
       c = *src++;
-      *++dest = c;
-      if (--n == 0)
+      --n;
+      *dest++ = c;
+      if (c == L'\0')
+       break;
+      if (n == 0)
        return dest;
     }
-  while (c != L'\0');
 
  zero_fill:
-  do
-    *++dest = L'\0';
-  while (--n > 0);
+  while (n-- > 0)
+    dest[n] = L'\0';
 
-  return dest;
+  return dest - 1;
 }
 
+#ifndef WCPNCPY
 weak_alias (__wcpncpy, wcpncpy)
+#endif