libc/src/stdio/generic/fflush.cpp

//===-- Implementation of fflush ------------------------------------------===//
//
// 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/fflush.h"
#include "src/__support/File/file.h"

#include "src/errno/libc_errno.h"
#include <stdio.h>

namespace LIBC_NAMESPACE {

LLVM_LIBC_FUNCTION(int, fflush, (::FILE * stream)) {
  int result = reinterpret_cast<LIBC_NAMESPACE::File *>(stream)->flush();
  if (result != 0) {
    libc_errno = result;
    return EOF;
  }
  return 0;
}

} // namespace LIBC_NAMESPACE