30 lines · cpp
1//===-- Implementation of setvbuf -----------------------------------------===//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/setvbuf.h"10#include "src/__support/File/file.h"11 12#include "hdr/types/FILE.h"13#include "src/__support/libc_errno.h"14#include "src/__support/macros/config.h"15#include <stddef.h>16 17namespace LIBC_NAMESPACE_DECL {18 19LLVM_LIBC_FUNCTION(int, setvbuf,20 (::FILE *__restrict stream, char *__restrict buf, int type,21 size_t size)) {22 int err = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->set_buffer(23 buf, size, type);24 if (err != 0)25 libc_errno = err;26 return err;27}28 29} // namespace LIBC_NAMESPACE_DECL30