src/stdio/fprintf.cpp

//===-- Implementation of fprintf -------------------------------*- 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
//
//===----------------------------------------------------------------------===//

#include "src/stdio/fprintf.h"

#include "src/__support/arg_list.h"
#include "src/stdio/printf_core/vfprintf_internal.h"

#include <stdarg.h>
#include <stdio.h>

namespace __llvm_libc {

#ifndef LIBC_COPT_PRINTF_USE_SYSTEM_FILE
#include "src/__support/File/file.h"
using FileT = __llvm_libc::File;
#else  // defined(LIBC_COPT_PRINTF_USE_SYSTEM_FILE)
using FileT = ::FILE;
#endif // LIBC_COPT_PRINTF_USE_SYSTEM_FILE

LLVM_LIBC_FUNCTION(int, fprintf,
                   (::FILE *__restrict stream, const char *__restrict format,
                    ...)) {
  va_list vlist;
  va_start(vlist, format);
  internal::ArgList args(vlist); // This holder class allows for easier copying
                                 // and pointer semantics, as well as handling
                                 // destruction automatically.
  va_end(vlist);
  int ret_val = printf_core::vfprintf_internal(
      reinterpret_cast<FileT *>(stream), format, args);
  return ret_val;
}

} // namespace __llvm_libc