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27 lines
761 B
C++
27 lines
761 B
C++
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//
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// fgetpos.cpp
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// Defines fgetpos(), which gets the file position in an opaque internal format.
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//
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#include <corecrt_internal_stdio.h>
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// Gets the file position in the internal fpos_t format. The returned value
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// should only be used in a call to fsetpos(). Our implementation happens to
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// just wrap _ftelli64() and _fseeki64(). Return zero on success; returns -1
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// and sets errno on failure.
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extern "C" int __cdecl fgetpos(FILE* const stream, fpos_t* const position)
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{
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_VALIDATE_RETURN(stream != nullptr, EINVAL, -1);
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_VALIDATE_RETURN(position != nullptr, EINVAL, -1);
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*position = _ftelli64(stream);
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if (*position == -1)
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return -1;
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return 0;
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}
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