/ string / stpcpy.c
stpcpy.c
 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  
26  char *
27  stpcpy(char * restrict dst, const char * restrict src) {
28  	const size_t length = strlen(src);
29      //  The stpcpy() and strcpy() functions copy the string src to dst
30      //  (including the terminating '\0' character).
31      memcpy(dst, src, length + 1);
32      //  The stpcpy() and stpncpy() functions return a pointer to the
33      //  terminating '\0' character of dst.
34      return dst + length;
35  }