47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
/*
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* Copyright (c) Huawei Technologies Co., Ltd. 2014-2018. All rights reserved.
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* Description: fscanf_s function
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* Author: lishunda
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* Create: 2014-02-25
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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 fscanf_s function is equivalent to fscanf except that the c, s,
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* and [ conversion specifiers apply to a pair of arguments (unless
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* assignment suppression is indicated by a*) The fscanf function reads data
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* from the current position of stream into the locations given by argument (if
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* any). Each argument must be a pointer to a variable of a type that
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* corresponds to a type specifier in format. format controls the interpretation
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* of the input fields and has the same form and function as the format argument
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* 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 convered 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
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* converted and assigned; the return value does not include fields that were
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* read but not assigned. A return value of 0 indicates that no fields were
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* assigned. return -1 if an error occurs.
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*/
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int fscanf_s(FILE *stream, const char *format, ...) {
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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 = vfscanf_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
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will optimize this code */
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return ret;
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}
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