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//
// clearerr.cpp
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// Defines clearerr(), which clears error and EOF flags from a stream.
//
#include <corecrt_internal_stdio.h>
extern "C" errno_t __cdecl clearerr_s(FILE* const public_stream)
{
__crt_stdio_stream const stream(public_stream);
_VALIDATE_RETURN_ERRCODE(stream.valid(), EINVAL);
_lock_file(stream.public_stream());
__try
{
stream.unset_flags(_IOERROR | _IOEOF); // Clear stdio flags
_osfile_safe(_fileno(stream.public_stream())) &= ~(FEOFLAG); // Clear lowio flags
}
__finally
{
_unlock_file(stream.public_stream());
}
return 0;
}
extern "C" void __cdecl clearerr(FILE* const stream)
{
clearerr_s(stream);
}