|  | //===----------------------------------------------------------------------===// | 
|  | // | 
|  | // 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___RANDOM_IS_SEED_SEQUENCE_H | 
|  | #define _LIBCPP___RANDOM_IS_SEED_SEQUENCE_H | 
|  |  | 
|  | #include <__config> | 
|  | #include <__type_traits/is_convertible.h> | 
|  | #include <__type_traits/is_same.h> | 
|  | #include <__type_traits/remove_cv.h> | 
|  |  | 
|  | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | 
|  | #  pragma GCC system_header | 
|  | #endif | 
|  |  | 
|  | _LIBCPP_BEGIN_NAMESPACE_STD | 
|  |  | 
|  | template <class _Sseq, class _Engine> | 
|  | struct __is_seed_sequence { | 
|  | static _LIBCPP_CONSTEXPR const bool value = | 
|  | !is_convertible<_Sseq, typename _Engine::result_type>::value && !is_same<__remove_cv_t<_Sseq>, _Engine>::value; | 
|  | }; | 
|  |  | 
|  | _LIBCPP_END_NAMESPACE_STD | 
|  |  | 
|  | #endif // _LIBCPP___RANDOM_IS_SEED_SEQUENCE_H |