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[platform/upstream/glibc.git] / string / strcat.c

diff --git a/string/strcat.c b/string/strcat.c
index 2cbe8b3..38fa175 100644 (file)
--- a/string/strcat.c
+++ b/string/strcat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2019 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
@@ -13,36 +13,21 @@
 
    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/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #include <string.h>
 
 #undef strcat
 
+#ifndef STRCAT
+# define STRCAT strcat
+#endif
+
 /* Append SRC on the end of DEST.  */
 char *
-strcat (char *dest, const char *src)
+STRCAT (char *dest, const char *src)
 {
-  char *s1 = dest;
-  const char *s2 = src;
-  char c;
-
-  /* Find the end of the string.  */
-  do
-    c = *s1++;
-  while (c != '\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 != '\0');
-
+  strcpy (dest + strlen (dest), src);
   return dest;
 }
 libc_hidden_builtin_def (strcat)