1 /*
2 * Copyright (c) Huawei Technologies Co., Ltd. 2014-2020. All rights reserved.
3 * Licensed under Mulan PSL v2.
4 * You can use this software according to the terms and conditions of the Mulan PSL v2.
5 * You may obtain a copy of Mulan PSL v2 at:
6 * http://license.coscl.org.cn/MulanPSL2
7 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
8 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
9 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
10 * See the Mulan PSL v2 for more details.
11 * Description: swprintf_s function
12 * Author: lishunda
13 * Create: 2014-02-25
14 */
15
16 #include "securec.h"
17
18 /*
19 * <FUNCTION DESCRIPTION>
20 * The swprintf_s function is the wide-character equivalent of the sprintf_s function
21 *
22 * <INPUT PARAMETERS>
23 * strDest Storage location for the output.
24 * destMax Maximum number of characters to store.
25 * format Format-control string.
26 * ... Optional arguments
27 *
28 * <OUTPUT PARAMETERS>
29 * strDest is updated
30 *
31 * <RETURN VALUE>
32 * return the number of wide characters stored in strDest, not counting the terminating null wide character.
33 * return -1 if an error occurred.
34 *
35 * If there is a runtime-constraint violation, strDest[0] will be set to the '\0' when strDest and destMax valid
36 */
swprintf_s(wchar_t * strDest,size_t destMax,const wchar_t * format,...)37 int swprintf_s(wchar_t *strDest, size_t destMax, const wchar_t *format, ...)
38 {
39 int ret; /* If initialization causes e838 */
40 va_list argList;
41
42 va_start(argList, format);
43 ret = vswprintf_s(strDest, destMax, format, argList);
44 va_end(argList);
45 (void)argList; /* To clear e438 last value assigned not used , the compiler will optimize this code */
46
47 return ret;
48 }
49
50