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

//===-------------- Linux implementation of IO utils ------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIBC_SRC___SUPPORT_OSUTIL_LINUX_IO_H
#define LLVM_LIBC_SRC___SUPPORT_OSUTIL_LINUX_IO_H

#include "src/__support/CPP/string_view.h"
#include "src/__support/macros/config.h"
#include "syscall.h" // For internal syscall function.

#include <sys/syscall.h> // For syscall numbers.

namespace LIBC_NAMESPACE_DECL {

LIBC_INLINE void write_to_stderr(cpp::string_view msg) {
  LIBC_NAMESPACE::syscall_impl<long>(SYS_write, 2 /* stderr */, msg.data(),
                                     msg.size());
}

} // namespace LIBC_NAMESPACE_DECL

#endif // LLVM_LIBC_SRC___SUPPORT_OSUTIL_LINUX_IO_H