28 lines · cpp
1//===-- Implementation of fseeko ------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/stdio/fseeko.h"10#include "src/__support/File/file.h"11 12#include "src/__support/libc_errno.h"13#include "src/__support/macros/config.h"14 15namespace LIBC_NAMESPACE_DECL {16 17LLVM_LIBC_FUNCTION(int, fseeko, (::FILE * stream, off_t offset, int whence)) {18 auto result =19 reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->seek(offset, whence);20 if (!result.has_value()) {21 libc_errno = result.error();22 return -1;23 }24 return 0;25}26 27} // namespace LIBC_NAMESPACE_DECL28