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authorRoland McGrath <roland@gnu.org>1996-02-08 10:00:34 +0000
committerRoland McGrath <roland@gnu.org>1996-02-08 10:00:34 +0000
commita482b5a5959240f5d196b32c4833ac48a03c02c3 (patch)
tree7792121005bdfc6a65efc4ed0e5dd53ae6796a17 /wcsmbs/wcscat.c
parent4ca84cff3b3e184164acde81deaad1fe52eabd14 (diff)
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* Makefile (subdirs): Added wcsmbs. cvs/libc-960208
	* wcsmbs: New directory of wide char/multibyte char functions from
	drepper.
Diffstat (limited to 'wcsmbs/wcscat.c')
-rw-r--r--wcsmbs/wcscat.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/wcsmbs/wcscat.c b/wcsmbs/wcscat.c
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+/* Copyright (C) 1995 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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.
+
+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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <wcstr.h>
+
+
+/* Append SRC on the end of DEST.  */
+wchar_t *
+wcscat (dest, src)
+    wchar_t *dest;
+    const wchar_t *src;
+{
+  register wchar_t *s1 = dest;
+  register const wchar_t *s2 = src;
+  wchar_t c;
+
+  /* Find the end of the string.  */
+  do
+    c = *s1++;
+  while (c != L'\0');
+
+  /* Make S1 point before the next character, so we can increment
+     it while memory is read (wins on pipelined cpus).	*/
+  s1 -= 2;
+
+  do
+    {
+      c = *s2++;
+      *++s1 = c;
+    }
+  while (c != L'\0');
+
+  return dest;
+}