1/* 2 * Copyright (c) 2011 Apple, Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23 24#include <string.h> 25 26char * 27strcat(char *restrict dst, const char *restrict src) { 28 const size_t dstlen = strlen(dst); 29 const size_t srclen = strlen(src); 30 // The strcat() and strncat() functions append a copy of the null- 31 // terminated string src to the end of the null-terminated string dst, 32 // then add a terminating '\0'. The string dst must have sufficient 33 // space to hold the result. 34 memcpy(dst+dstlen, src, srclen+1); 35 // The strcat() and strncat() functions return dst. 36 return dst; 37} 38