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-rw-r--r--sysdeps/powerpc/power6/wcscpy.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/sysdeps/powerpc/power6/wcscpy.c b/sysdeps/powerpc/power6/wcscpy.c
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+/* wcscpy.c - Wide Character Copy for POWER6+.
+ Copyright (C) 2012-2013 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#include <stddef.h>
+#include <wchar.h>
+
+#ifndef WCSCPY
+# define WCSCPY wcscpy
+#endif
+
+/* Copy SRC to DEST. */
+wchar_t *
+WCSCPY (wchar_t *dest, const wchar_t *src)
+{
+ wint_t c,d;
+ wchar_t *wcp, *wcp2;
+
+ if (__alignof__ (wchar_t) >= sizeof (wchar_t))
+ {
+ const ptrdiff_t off = dest - src;
+
+ wcp = (wchar_t *) src;
+ wcp2 = wcp + 1 ;
+
+ do
+ {
+ d = *wcp;
+ wcp[off] = d;
+ if (d == L'\0')
+ return dest;
+ wcp += 2;
+
+ c = *wcp2;
+ wcp2[off] = c;
+ if (c == L'\0')
+ return dest;
+ wcp2 += 2;
+
+ d = *wcp;
+ wcp[off] = d;
+ if (d == L'\0')
+ return dest;
+ wcp += 2;
+
+ c = *wcp2;
+ wcp2[off] = c;
+ if (c == L'\0')
+ return dest;
+ wcp2 += 2;
+
+ d = *wcp;
+ wcp[off] = d;
+ if (d == L'\0')
+ return dest;
+ wcp += 2;
+
+ c = *wcp2;
+ wcp2[off] = c;
+ if (c == L'\0')
+ return dest;
+ wcp2 += 2;
+
+ d = *wcp;
+ wcp[off] = d;
+ if (d == L'\0')
+ return dest;
+ wcp += 2;
+
+ c = *wcp2;
+ wcp2[off] = c;
+ if (c == L'\0')
+ return dest;
+ wcp2 += 2;
+ }
+ while (c != L'\0');
+
+ }
+ else
+ {
+ wcp = dest;
+
+ do
+ {
+ c = *src++;
+ *wcp++ = c;
+ }
+ while (c != L'\0');
+ }
+ return dest;
+}