1 //===----------------------------------------------------------------------===//
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 _LIBCPP___RANDOM_IS_SEED_SEQUENCE_H
10 #define _LIBCPP___RANDOM_IS_SEED_SEQUENCE_H
11 
12 #include <__config>
13 #include <type_traits>
14 
15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
16 #  pragma GCC system_header
17 #endif
18 
19 _LIBCPP_BEGIN_NAMESPACE_STD
20 
21 template <class _Sseq, class _Engine>
22 struct __is_seed_sequence
23 {
24     static _LIBCPP_CONSTEXPR const bool value =
25               !is_convertible<_Sseq, typename _Engine::result_type>::value &&
26               !is_same<__remove_cv_t<_Sseq>, _Engine>::value;
27 };
28 
29 _LIBCPP_END_NAMESPACE_STD
30 
31 #endif // _LIBCPP___RANDOM_IS_SEED_SEQUENCE_H
32