49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
/*
|
|
* Copyright (c) Huawei Technologies Co., Ltd. 2014-2018. All rights reserved.
|
|
* Description: swscanf_s function
|
|
* Author: lishunda
|
|
* Create: 2014-02-25
|
|
*/
|
|
|
|
#include "securec.h"
|
|
|
|
/*
|
|
* <FUNCTION DESCRIPTION>
|
|
* The swscanf_s function is the wide-character equivalent of the sscanf_s function
|
|
* The swscanf_s function reads data from buffer into the location given by
|
|
* each argument. Every argument must be a pointer to a variable with a type
|
|
* that corresponds to a type specifier in format. The format argument controls
|
|
* the interpretation of the input fields and has the same form and function
|
|
* as the format argument for the scanf function. If copying takes place between
|
|
* strings that overlap, the behavior is undefined.
|
|
*
|
|
* <INPUT PARAMETERS>
|
|
* buffer Stored data.
|
|
* format Format control string, see Format Specifications.
|
|
* ... Optional arguments.
|
|
*
|
|
* <OUTPUT PARAMETERS>
|
|
* ... the converted value stored in user assigned address
|
|
*
|
|
* <RETURN VALUE>
|
|
* Each of these functions returns the number of fields successfully converted
|
|
* and assigned; The return value does not include fields that were read but not
|
|
* assigned.
|
|
* A return value of 0 indicates that no fields were assigned.
|
|
* return -1 if an error occurs.
|
|
*/
|
|
int swscanf_s(const wchar_t *buffer, const wchar_t *format, ...)
|
|
{
|
|
int ret; /* If initialization causes e838 */
|
|
va_list argList;
|
|
|
|
va_start(argList, format);
|
|
ret = vswscanf_s(buffer, format, argList);
|
|
va_end(argList);
|
|
(void)argList; /* To clear e438 last value assigned not used , the compiler will optimize this code */
|
|
|
|
return ret;
|
|
}
|
|
|
|
|