|  | // -*- 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 _LIBCPP_CSTDBOOL | 
|  | #define _LIBCPP_CSTDBOOL | 
|  |  | 
|  | /* | 
|  | cstdbool synopsis | 
|  |  | 
|  | Macros: | 
|  |  | 
|  | __bool_true_false_are_defined | 
|  |  | 
|  | */ | 
|  |  | 
|  | #if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) | 
|  | #  include <__cxx03/cstdbool> | 
|  | #else | 
|  | #  include <__config> | 
|  |  | 
|  | #  if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | 
|  | #    pragma GCC system_header | 
|  | #  endif | 
|  |  | 
|  | #  undef __bool_true_false_are_defined | 
|  | #  define __bool_true_false_are_defined 1 | 
|  |  | 
|  | #  if _LIBCPP_STD_VER >= 20 | 
|  |  | 
|  | using __standard_header_cstdbool _LIBCPP_DEPRECATED_("removed in C++20.") _LIBCPP_NODEBUG = void; | 
|  | using __use_standard_header_cstdbool _LIBCPP_NODEBUG                                      = __standard_header_cstdbool; | 
|  |  | 
|  | #  elif _LIBCPP_STD_VER >= 17 | 
|  |  | 
|  | using __standard_header_cstdbool _LIBCPP_DEPRECATED _LIBCPP_NODEBUG = void; | 
|  | using __use_standard_header_cstdbool _LIBCPP_NODEBUG                = __standard_header_cstdbool; | 
|  |  | 
|  | #  endif | 
|  | #endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) | 
|  |  | 
|  | #endif // _LIBCPP_CSTDBOOL |