libc/src/stdio/fflush.cpp

   1 //===-- Implementation of fflush ------------------------------------------===//
   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-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "src/stdio/fflush.h"
  10 #include "src/__support/File/file.h"
  11
  12 #include "src/errno/libc_errno.h"
  13 #include <stdio.h>
  14
  15 namespace __llvm_libc {
  16
  17 LLVM_LIBC_FUNCTION(int, fflush, (::FILE * stream)) {
  18   int result = reinterpret_cast<__llvm_libc::File *>(stream)->flush();
  19   if (result != 0) {
  20     libc_errno = result;
  21     return EOF;
  22   }
  23   return 0;
  24 }
  25
  26 } // namespace __llvm_libc