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58 lines
2.2 KiB
58 lines
2.2 KiB
/**
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* Copyright 2020 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "securec.h"
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/*
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* <FUNCTION DESCRIPTION>
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* The swscanf_s function is the wide-character equivalent of the sscanf_s function
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* The swscanf_s function reads data from buffer into the location given by
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* each argument. Every argument must be a pointer to a variable with a type
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* that corresponds to a type specifier in format. The format argument controls
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* the interpretation of the input fields and has the same form and function
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* as the format argument for the scanf function. If copying takes place between
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* strings that overlap, the behavior is undefined.
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*
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* <INPUT PARAMETERS>
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* buffer Stored data.
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* format Format control string, see Format Specifications.
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* ... Optional arguments.
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*
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* <OUTPUT PARAMETERS>
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* ... the converted value stored in user assigned address
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*
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* <RETURN VALUE>
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* Each of these functions returns the number of fields successfully converted
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* and assigned; The return value does not include fields that were read but not
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* assigned.
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* A return value of 0 indicates that no fields were assigned.
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* return -1 if an error occurs.
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*/
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int swscanf_s(const wchar_t *buffer, const wchar_t *format, ...)
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{
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int ret; /* If initialization causes e838 */
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va_list argList;
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va_start(argList, format);
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ret = vswscanf_s(buffer, format, argList);
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va_end(argList);
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(void)argList; /* to clear e438 last value assigned not used , the compiler will optimize this code */
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return ret;
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}
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