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//===-- Implementation of setbuf ------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/stdio/setbuf.h"
#include "src/__support/File/file.h"
#include "src/errno/libc_errno.h"
#include <stdio.h>
namespace LIBC_NAMESPACE {
LLVM_LIBC_FUNCTION(void, setbuf,
(::FILE *__restrict stream, char *__restrict buf)) {
int mode = _IOFBF;
if (buf == nullptr)
mode = _IONBF;
int err = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->set_buffer(
buf, BUFSIZ, mode);
if (err != 0)
libc_errno = err;
}
} // namespace LIBC_NAMESPACE
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