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56 lines
2.1 KiB
56 lines
2.1 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 fwscanf_s function is the wide-character equivalent of the fscanf_s function
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* The fwscanf_s function reads data from the current position of stream into
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* the locations given by argument (if any). Each argument must be a pointer
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* to a variable of a type that corresponds to a type specifier in format.
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* format controls the interpretation of the input fields and has the same
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* form and function as the format argument for scanf.
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*
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* <INPUT PARAMETERS>
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* stream Pointer to FILE structure.
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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
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* not assigned. 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 fwscanf_s(FILE *stream, 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 = vfwscanf_s(stream, 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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