From 28f540f45bbacd939bfd07f213bcad2bf730b1bf Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sat, 18 Feb 1995 01:27:10 +0000 Subject: initial import --- sysdeps/generic/strcat.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 sysdeps/generic/strcat.c (limited to 'sysdeps/generic/strcat.c') diff --git a/sysdeps/generic/strcat.c b/sysdeps/generic/strcat.c new file mode 100644 index 0000000000..b4b5536971 --- /dev/null +++ b/sysdeps/generic/strcat.c @@ -0,0 +1,48 @@ +/* Copyright (C) 1991 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 +#include +#include + +/* Append SRC on the end of DEST. */ +char * +DEFUN(strcat, (dest, src), char *dest AND CONST char *src) +{ + register char *s1 = dest; + register CONST char *s2 = src; + reg_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'); + + return dest; +} -- cgit 1.4.1