PMDK C++ bindings  1.8.1
This is the C++ bindings documentation for PMDK's libpmemobj.
template_helpers.hpp
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32 
38 #ifndef LIBPMEMOBJ_CPP_TEMPLATE_HELPERS_HPP
39 #define LIBPMEMOBJ_CPP_TEMPLATE_HELPERS_HPP
40 
41 #include <type_traits>
42 
43 namespace pmem
44 {
45 
46 namespace detail
47 {
48 
49 template <typename... Ts>
50 struct make_void {
51  typedef void type;
52 };
53 template <typename... Ts>
54 using void_t = typename make_void<Ts...>::type;
55 
56 /* Generic SFINAE helper for expression checks, based on the idea demonstrated
57  * in ISO C++ paper n4502 */
58 template <typename T, typename, template <typename> class... Checks>
59 struct supports_impl {
60  using type = std::false_type;
61 };
62 template <typename T, template <typename> class... Checks>
63 struct supports_impl<T, void_t<Checks<T>...>, Checks...> {
64  using type = std::true_type;
65 };
66 
67 template <typename T, template <typename> class... Checks>
68 using supports = typename supports_impl<T, void, Checks...>::type;
69 
70 } /* namespace detail */
71 
72 } /* namespace pmem */
73 
74 #endif /* LIBPMEMOBJ_CPP_TEMPLATE_HELPERS_HPP */
pmem
A persistent version of concurrent hash map implementation Ref: https://arxiv.org/abs/1509....
Definition: allocation_flag.hpp:44