libc/src/__support/OSUtil/darwin/io.h

   1 //===------------- Darwin implementation of IO utils ------------*- C++ -*-===//
   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 #ifndef LLVM_LIBC_SRC___SUPPORT_OSUTIL_DARWIN_IO_H
  10 #define LLVM_LIBC_SRC___SUPPORT_OSUTIL_DARWIN_IO_H
  11
  12 #include "src/__support/CPP/string_view.h"
  13 #include "syscall.h" // For internal syscall function.
  14
  15 namespace LIBC_NAMESPACE {
  16
  17 LIBC_INLINE void write_to_stderr(cpp::string_view msg) {
  18   LIBC_NAMESPACE::syscall_impl(4 /*SYS_write*/, 2 /* stderr */,
  19                                reinterpret_cast<long>(msg.data()), msg.size());
  20 }
  21
  22 } // namespace LIBC_NAMESPACE
  23
  24 #endif // LLVM_LIBC_SRC___SUPPORT_OSUTIL_DARWIN_IO_H