1/*
2 * Copyright (c) Huawei Technologies Co., Ltd. 2014-2021. 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: fwscanf_s function
12 * Create: 2014-02-25
13 */
14
15#include "securec.h"
16
17/*
18 * <FUNCTION DESCRIPTION>
19 *    The fwscanf_s function  is  the  wide-character  equivalent  of the fscanf_s function
20 *    The fwscanf_s function reads data from the current position of stream into
21 *    the locations given by argument (if any). Each argument must be a pointer
22 *    to a variable of a type that corresponds to a type specifier in format.
23 *    format controls the interpretation of the input fields and has the same
24 *    form and function as the format argument for scanf.
25 *
26 * <INPUT PARAMETERS>
27 *    stream                   Pointer to FILE structure.
28 *    format                   Format control string, see Format Specifications.
29 *    ...                      Optional arguments.
30 *
31 * <OUTPUT PARAMETERS>
32 *    ...                      The converted value stored in user assigned address
33 *
34 * <RETURN VALUE>
35 *    Each of these functions returns the number of fields successfully converted
36 *    and assigned; the return value does not include fields that were read but
37 *    not assigned. A return value of 0 indicates that no fields were assigned.
38 *    return -1 if an error occurs.
39 */
40int fwscanf_s(FILE *stream, const wchar_t *format, ...)
41{
42    int ret;                    /* If initialization causes  e838 */
43    va_list argList;
44
45    va_start(argList, format);
46    ret = vfwscanf_s(stream, format, argList);
47    va_end(argList);
48    (void)argList;              /* To clear e438 last value assigned not used , the compiler will optimize this code */
49
50    return ret;
51}
52
53